XCMv4 (#1230)

# Note for reviewer

Most changes are just syntax changes necessary for the new version.
Most important files should be the ones under the `xcm` folder.

# Description 

Added XCMv4.

## Removed `Multi` prefix
The following types have been renamed:
- MultiLocation -> Location
- MultiAsset -> Asset
- MultiAssets -> Assets
- InteriorMultiLocation -> InteriorLocation
- MultiAssetFilter -> AssetFilter
- VersionedMultiAsset -> VersionedAsset
- WildMultiAsset -> WildAsset
- VersionedMultiLocation -> VersionedLocation

In order to fix a name conflict, the `Assets` in `xcm-executor` were
renamed to `HoldingAssets`, as they represent assets in holding.

## Removed `Abstract` asset id

It was not being used anywhere and this simplifies the code.

Now assets are just constructed as follows:

```rust
let asset: Asset = (AssetId(Location::new(1, Here)), 100u128).into();
```

No need for specifying `Concrete` anymore.

## Outcome is now a named fields struct

Instead of

```rust
pub enum Outcome {
  Complete(Weight),
  Incomplete(Weight, Error),
  Error(Error),
}
```

we now have

```rust
pub enum Outcome {
  Complete { used: Weight },
  Incomplete { used: Weight, error: Error },
  Error { error: Error },
}
```

## Added Reanchorable trait

Now both locations and assets implement this trait, making it easier to
reanchor both.

## New syntax for building locations and junctions

Now junctions are built using the following methods:

```rust
let location = Location {
    parents: 1,
    interior: [Parachain(1000), PalletInstance(50), GeneralIndex(1984)].into()
};
```

or

```rust
let location = Location::new(1, [Parachain(1000), PalletInstance(50), GeneralIndex(1984)]);
```

And they are matched like so:

```rust
match location.unpack() {
  (1, [Parachain(id)]) => ...
  (0, Here) => ...,
  (1, [_]) => ...,
}
```

This syntax is mandatory in v4, and has been also implemented for v2 and
v3 for easier migration.

This was needed to make all sizes smaller.

# TODO
- [x] Scaffold v4
- [x] Port github.com/paritytech/polkadot/pull/7236
- [x] Remove `Multi` prefix
- [x] Remove `Abstract` asset id

---------

Co-authored-by: command-bot <>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

bridges/bin/runtime-common/src/messages_benchmarking.rs

@@ -38,7 +38,7 @@ use frame_support::weights::Weight;
 use pallet_bridge_messages::benchmarking::{MessageDeliveryProofParams, MessageProofParams};
 use sp_runtime::traits::{Header, Zero};
 use sp_std::prelude::*;
-use xcm::v3::prelude::*;
+use xcm::latest::prelude::*;
 
 /// Prepare inbound bridge message according to given message proof parameters.
 fn prepare_inbound_message(
@@ -266,19 +266,19 @@ where
 /// Returns callback which generates `BridgeMessage` from Polkadot XCM builder based on
 /// `expected_message_size` for benchmark.
 pub fn generate_xcm_builder_bridge_message_sample(
-	destination: InteriorMultiLocation,
+	destination: InteriorLocation,
 ) -> impl Fn(usize) -> MessagePayload {
 	move |expected_message_size| -> MessagePayload {
 		// For XCM bridge hubs, it is the message that
 		// will be pushed further to some XCM queue (XCMP/UMP)
-		let location = xcm::VersionedInteriorMultiLocation::V3(destination);
+		let location = xcm::VersionedInteriorLocation::V4(destination.clone());
 		let location_encoded_size = location.encoded_size();
 
 		// we don't need to be super-precise with `expected_size` here
 		let xcm_size = expected_message_size.saturating_sub(location_encoded_size);
 		let xcm_data_size = xcm_size.saturating_sub(
 			// minus empty instruction size
-			xcm::v3::Instruction::<()>::ExpectPallet {
+			Instruction::<()>::ExpectPallet {
 				index: 0,
 				name: vec![],
 				module_name: vec![],
@@ -294,8 +294,8 @@ pub fn generate_xcm_builder_bridge_message_sample(
 			expected_message_size, location_encoded_size, xcm_size, xcm_data_size,
 		);
 
-		let xcm = xcm::VersionedXcm::<()>::V3(
+		let xcm = xcm::VersionedXcm::<()>::V4(
-			vec![xcm::v3::Instruction::<()>::ExpectPallet {
+			vec![Instruction::<()>::ExpectPallet {
 				index: 0,
 				name: vec![42; xcm_data_size],
 				module_name: vec![],

bridges/bin/runtime-common/src/messages_xcm_extension.rs

@@ -123,14 +123,14 @@ impl<
 #[cfg_attr(feature = "std", derive(Debug, Eq, PartialEq))]
 pub struct SenderAndLane {
 	/// Sending chain relative location.
-	pub location: MultiLocation,
+	pub location: Location,
 	/// Message lane, used by the sending chain.
 	pub lane: LaneId,
 }
 
 impl SenderAndLane {
 	/// Create new object using provided location and lane.
-	pub fn new(location: MultiLocation, lane: LaneId) -> Self {
+	pub fn new(location: Location, lane: LaneId) -> Self {
 		SenderAndLane { location, lane }
 	}
 }
@@ -168,7 +168,7 @@ pub struct XcmBlobHaulerAdapter<XcmBlobHauler, Lanes>(
 
 impl<
 		H: XcmBlobHauler,
-		Lanes: Get<sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))>>,
+		Lanes: Get<sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorLocation))>>,
 	> OnMessagesDelivered for XcmBlobHaulerAdapter<H, Lanes>
 {
 	fn on_messages_delivered(lane: LaneId, enqueued_messages: MessageNonce) {
@@ -288,7 +288,7 @@ impl<H: XcmBlobHauler> LocalXcmQueueManager<H> {
 	/// Send congested signal to the `sending_chain_location`.
 	fn send_congested_signal(sender_and_lane: &SenderAndLane) -> Result<(), SendError> {
 		if let Some(msg) = H::CongestedMessage::get() {
-			send_xcm::<H::ToSourceChainSender>(sender_and_lane.location, msg)?;
+			send_xcm::<H::ToSourceChainSender>(sender_and_lane.location.clone(), msg)?;
 			OutboundLanesCongestedSignals::<H::Runtime, H::MessagesInstance>::insert(
 				sender_and_lane.lane,
 				true,
@@ -300,7 +300,7 @@ impl<H: XcmBlobHauler> LocalXcmQueueManager<H> {
 	/// Send `uncongested` signal to the `sending_chain_location`.
 	fn send_uncongested_signal(sender_and_lane: &SenderAndLane) -> Result<(), SendError> {
 		if let Some(msg) = H::UncongestedMessage::get() {
-			send_xcm::<H::ToSourceChainSender>(sender_and_lane.location, msg)?;
+			send_xcm::<H::ToSourceChainSender>(sender_and_lane.location.clone(), msg)?;
 			OutboundLanesCongestedSignals::<H::Runtime, H::MessagesInstance>::remove(
 				sender_and_lane.lane,
 			);
@@ -315,10 +315,10 @@ impl<H: XcmBlobHauler> LocalXcmQueueManager<H> {
 pub struct XcmVersionOfDestAndRemoteBridge<Version, RemoteBridge>(
 	sp_std::marker::PhantomData<(Version, RemoteBridge)>,
 );
-impl<Version: GetVersion, RemoteBridge: Get<MultiLocation>> GetVersion
+impl<Version: GetVersion, RemoteBridge: Get<Location>> GetVersion
 	for XcmVersionOfDestAndRemoteBridge<Version, RemoteBridge>
 {
-	fn get_version_for(dest: &MultiLocation) -> Option<XcmVersion> {
+	fn get_version_for(dest: &Location) -> Option<XcmVersion> {
 		let dest_version = Version::get_version_for(dest);
 		let bridge_hub_version = Version::get_version_for(&RemoteBridge::get());
 
@@ -342,11 +342,11 @@ mod tests {
 
 	parameter_types! {
 		pub TestSenderAndLane: SenderAndLane = SenderAndLane {
-			location: MultiLocation::new(1, X1(Parachain(1000))),
+			location: Location::new(1, [Parachain(1000)]),
 			lane: TEST_LANE_ID,
 		};
-		pub TestLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))> = sp_std::vec![
+		pub TestLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorLocation))> = sp_std::vec![
-			(TestSenderAndLane::get(), (NetworkId::ByGenesis([0; 32]), InteriorMultiLocation::Here))
+			(TestSenderAndLane::get(), (NetworkId::ByGenesis([0; 32]), InteriorLocation::Here))
 		];
 		pub DummyXcmMessage: Xcm<()> = Xcm::new();
 	}
@@ -363,7 +363,7 @@ mod tests {
 		type Ticket = ();
 
 		fn validate(
-			_destination: &mut Option<MultiLocation>,
+			_destination: &mut Option<Location>,
 			_message: &mut Option<Xcm<()>>,
 		) -> SendResult<Self::Ticket> {
 			Ok(((), Default::default()))

bridges/modules/xcm-bridge-hub-router/src/benchmarking.rs

@@ -37,10 +37,10 @@ pub trait Config<I: 'static>: crate::Config<I> {
 	/// Returns destination which is valid for this router instance.
 	/// (Needs to pass `T::Bridges`)
 	/// Make sure that `SendXcm` will pass.
-	fn ensure_bridged_target_destination() -> Result<MultiLocation, BenchmarkError> {
+	fn ensure_bridged_target_destination() -> Result<Location, BenchmarkError> {
-		Ok(MultiLocation::new(
+		Ok(Location::new(
 			Self::UniversalLocation::get().len() as u8,
-			X1(GlobalConsensus(Self::BridgedNetworkId::get().unwrap())),
+			[GlobalConsensus(Self::BridgedNetworkId::get().unwrap())],
 		))
 	}
 }

bridges/modules/xcm-bridge-hub-router/src/lib.rs

@@ -80,7 +80,7 @@ pub mod pallet {
 		type WeightInfo: WeightInfo;
 
 		/// Universal location of this runtime.
-		type UniversalLocation: Get<InteriorMultiLocation>;
+		type UniversalLocation: Get<InteriorLocation>;
 		/// The bridged network that this config is for if specified.
 		/// Also used for filtering `Bridges` by `BridgedNetworkId`.
 		/// If not specified, allows all networks pass through.
@@ -235,9 +235,9 @@ type ViaBridgeHubExporter<T, I> = SovereignPaidRemoteExporter<
 impl<T: Config<I>, I: 'static> ExporterFor for Pallet<T, I> {
 	fn exporter_for(
 		network: &NetworkId,
-		remote_location: &InteriorMultiLocation,
+		remote_location: &InteriorLocation,
 		message: &Xcm<()>,
-	) -> Option<(MultiLocation, Option<MultiAsset>)> {
+	) -> Option<(Location, Option<Asset>)> {
 		// ensure that the message is sent to the expected bridged network (if specified).
 		if let Some(bridged_network) = T::BridgedNetworkId::get() {
 			if *network != bridged_network {
@@ -268,7 +268,7 @@ impl<T: Config<I>, I: 'static> ExporterFor for Pallet<T, I> {
 		// take `base_fee` from `T::Brides`, but it has to be the same `T::FeeAsset`
 		let base_fee = match maybe_payment {
 			Some(payment) => match payment {
-				MultiAsset { fun: Fungible(amount), id } if id.eq(&T::FeeAsset::get()) => amount,
+				Asset { fun: Fungible(amount), id } if id.eq(&T::FeeAsset::get()) => amount,
 				invalid_asset => {
 					log::error!(
 						target: LOG_TARGET,
@@ -318,7 +318,7 @@ impl<T: Config<I>, I: 'static> SendXcm for Pallet<T, I> {
 	type Ticket = (u32, <T::ToBridgeHubSender as SendXcm>::Ticket);
 
 	fn validate(
-		dest: &mut Option<MultiLocation>,
+		dest: &mut Option<Location>,
 		xcm: &mut Option<Xcm<()>>,
 	) -> SendResult<Self::Ticket> {
 		// `dest` and `xcm` are required here
@@ -446,7 +446,7 @@ mod tests {
 		run_test(|| {
 			assert_eq!(
 				send_xcm::<XcmBridgeHubRouter>(
-					MultiLocation::new(2, X2(GlobalConsensus(Rococo), Parachain(1000))),
+					Location::new(2, [GlobalConsensus(Rococo), Parachain(1000)]),
 					vec![].into(),
 				),
 				Err(SendError::NotApplicable),
@@ -459,7 +459,7 @@ mod tests {
 		run_test(|| {
 			assert_eq!(
 				send_xcm::<XcmBridgeHubRouter>(
-					MultiLocation::new(2, X2(GlobalConsensus(Rococo), Parachain(1000))),
+					Location::new(2, [GlobalConsensus(Rococo), Parachain(1000)]),
 					vec![ClearOrigin; HARD_MESSAGE_SIZE_LIMIT as usize].into(),
 				),
 				Err(SendError::ExceedsMaxMessageSize),
@@ -483,14 +483,14 @@ mod tests {
 	#[test]
 	fn returns_proper_delivery_price() {
 		run_test(|| {
-			let dest = MultiLocation::new(2, X1(GlobalConsensus(BridgedNetworkId::get())));
+			let dest = Location::new(2, [GlobalConsensus(BridgedNetworkId::get())]);
 			let xcm: Xcm<()> = vec![ClearOrigin].into();
 			let msg_size = xcm.encoded_size();
 
 			// initially the base fee is used: `BASE_FEE + BYTE_FEE * msg_size + HRMP_FEE`
 			let expected_fee = BASE_FEE + BYTE_FEE * (msg_size as u128) + HRMP_FEE;
 			assert_eq!(
-				XcmBridgeHubRouter::validate(&mut Some(dest), &mut Some(xcm.clone()))
+				XcmBridgeHubRouter::validate(&mut Some(dest.clone()), &mut Some(xcm.clone()))
 					.unwrap()
 					.1
 					.get(0),
@@ -518,10 +518,7 @@ mod tests {
 		run_test(|| {
 			let old_bridge = XcmBridgeHubRouter::bridge();
 			assert_ok!(send_xcm::<XcmBridgeHubRouter>(
-				MultiLocation::new(
+				Location::new(2, [GlobalConsensus(BridgedNetworkId::get()), Parachain(1000)]),
-					2,
-					X2(GlobalConsensus(BridgedNetworkId::get()), Parachain(1000))
-				),
 				vec![ClearOrigin].into(),
 			)
 			.map(drop));
@@ -538,10 +535,7 @@ mod tests {
 
 			let old_bridge = XcmBridgeHubRouter::bridge();
 			assert_ok!(send_xcm::<XcmBridgeHubRouter>(
-				MultiLocation::new(
+				Location::new(2, [GlobalConsensus(BridgedNetworkId::get()), Parachain(1000)]),
-					2,
-					X2(GlobalConsensus(BridgedNetworkId::get()), Parachain(1000))
-				),
 				vec![ClearOrigin].into(),
 			)
 			.map(drop));
@@ -560,10 +554,7 @@ mod tests {
 
 			let old_bridge = XcmBridgeHubRouter::bridge();
 			assert_ok!(send_xcm::<XcmBridgeHubRouter>(
-				MultiLocation::new(
+				Location::new(2, [GlobalConsensus(BridgedNetworkId::get()), Parachain(1000)]),
-					2,
-					X2(GlobalConsensus(BridgedNetworkId::get()), Parachain(1000))
-				),
 				vec![ClearOrigin].into(),
 			)
 			.map(drop));

bridges/modules/xcm-bridge-hub-router/src/mock.rs

@@ -49,9 +49,9 @@ construct_runtime! {
 parameter_types! {
 	pub ThisNetworkId: NetworkId = Polkadot;
 	pub BridgedNetworkId: NetworkId = Kusama;
-	pub UniversalLocation: InteriorMultiLocation = X2(GlobalConsensus(ThisNetworkId::get()), Parachain(1000));
+	pub UniversalLocation: InteriorLocation = [GlobalConsensus(ThisNetworkId::get()), Parachain(1000)].into();
-	pub SiblingBridgeHubLocation: MultiLocation = ParentThen(X1(Parachain(1002))).into();
+	pub SiblingBridgeHubLocation: Location = ParentThen([Parachain(1002)].into()).into();
-	pub BridgeFeeAsset: AssetId = MultiLocation::parent().into();
+	pub BridgeFeeAsset: AssetId = Location::parent().into();
 	pub BridgeTable: Vec<NetworkExportTableItem>
 		= vec![
 			NetworkExportTableItem::new(
@@ -61,7 +61,7 @@ parameter_types! {
 				Some((BridgeFeeAsset::get(), BASE_FEE).into())
 			)
 		];
-	pub UnknownXcmVersionLocation: MultiLocation = MultiLocation::new(2, X2(GlobalConsensus(BridgedNetworkId::get()), Parachain(9999)));
+	pub UnknownXcmVersionLocation: Location = Location::new(2, [GlobalConsensus(BridgedNetworkId::get()), Parachain(9999)]);
 }
 
 #[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
@@ -87,11 +87,11 @@ impl pallet_xcm_bridge_hub_router::Config<()> for TestRuntime {
 }
 
 pub struct LatestOrNoneForLocationVersionChecker<Location>(sp_std::marker::PhantomData<Location>);
-impl<Location: Contains<MultiLocation>> GetVersion
+impl<LocationValue: Contains<Location>> GetVersion
-	for LatestOrNoneForLocationVersionChecker<Location>
+	for LatestOrNoneForLocationVersionChecker<LocationValue>
 {
-	fn get_version_for(dest: &MultiLocation) -> Option<XcmVersion> {
+	fn get_version_for(dest: &Location) -> Option<XcmVersion> {
-		if Location::contains(dest) {
+		if LocationValue::contains(dest) {
 			return None
 		}
 		Some(XCM_VERSION)
@@ -110,7 +110,7 @@ impl SendXcm for TestToBridgeHubSender {
 	type Ticket = ();
 
 	fn validate(
-		_destination: &mut Option<MultiLocation>,
+		_destination: &mut Option<Location>,
 		_message: &mut Option<Xcm<()>>,
 	) -> SendResult<Self::Ticket> {
 		Ok(((), (BridgeFeeAsset::get(), HRMP_FEE).into()))

bridges/modules/xcm-bridge-hub/src/exporter.rs

@@ -52,10 +52,10 @@ where
 	fn validate(
 		network: NetworkId,
 		channel: u32,
-		universal_source: &mut Option<InteriorMultiLocation>,
+		universal_source: &mut Option<InteriorLocation>,
-		destination: &mut Option<InteriorMultiLocation>,
+		destination: &mut Option<InteriorLocation>,
 		message: &mut Option<Xcm<()>>,
-	) -> Result<(Self::Ticket, MultiAssets), SendError> {
+	) -> Result<(Self::Ticket, Assets), SendError> {
 		// Find supported lane_id.
 		let sender_and_lane = Self::lane_for(
 			universal_source.as_ref().ok_or(SendError::MissingArgument)?,
@@ -137,11 +137,11 @@ mod tests {
 	use frame_support::assert_ok;
 	use xcm_executor::traits::export_xcm;
 
-	fn universal_source() -> InteriorMultiLocation {
+	fn universal_source() -> InteriorLocation {
-		X2(GlobalConsensus(RelayNetwork::get()), Parachain(SIBLING_ASSET_HUB_ID))
+		[GlobalConsensus(RelayNetwork::get()), Parachain(SIBLING_ASSET_HUB_ID)].into()
 	}
 
-	fn universal_destination() -> InteriorMultiLocation {
+	fn universal_destination() -> InteriorLocation {
 		BridgedDestination::get()
 	}
 

bridges/modules/xcm-bridge-hub/src/lib.rs

@@ -45,25 +45,25 @@ pub mod pallet {
 		BridgeMessagesConfig<Self::BridgeMessagesPalletInstance>
 	{
 		/// Runtime's universal location.
-		type UniversalLocation: Get<InteriorMultiLocation>;
+		type UniversalLocation: Get<InteriorLocation>;
 		// TODO: https://github.com/paritytech/parity-bridges-common/issues/1666 remove `ChainId` and
 		// replace it with the `NetworkId` - then we'll be able to use
 		// `T as pallet_bridge_messages::Config<T::BridgeMessagesPalletInstance>::BridgedChain::NetworkId`
 		/// Bridged network as relative location of bridged `GlobalConsensus`.
 		#[pallet::constant]
-		type BridgedNetwork: Get<MultiLocation>;
+		type BridgedNetwork: Get<Location>;
 		/// Associated messages pallet instance that bridges us with the
 		/// `BridgedNetworkId` consensus.
 		type BridgeMessagesPalletInstance: 'static;
 
 		/// Price of single message export to the bridged consensus (`Self::BridgedNetworkId`).
-		type MessageExportPrice: Get<MultiAssets>;
+		type MessageExportPrice: Get<Assets>;
 		/// Checks the XCM version for the destination.
 		type DestinationVersion: GetVersion;
 
 		/// Get point-to-point links with bridged consensus (`Self::BridgedNetworkId`).
 		/// (this will be replaced with dynamic on-chain bridges - `Bridges V2`)
-		type Lanes: Get<sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))>>;
+		type Lanes: Get<sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorLocation))>>;
 		/// Support for point-to-point links
 		/// (this will be replaced with dynamic on-chain bridges - `Bridges V2`)
 		type LanesSupport: XcmBlobHauler;
@@ -86,10 +86,10 @@ pub mod pallet {
 	impl<T: Config<I>, I: 'static> Pallet<T, I> {
 		/// Returns dedicated/configured lane identifier.
 		pub(crate) fn lane_for(
-			source: &InteriorMultiLocation,
+			source: &InteriorLocation,
-			dest: (&NetworkId, &InteriorMultiLocation),
+			dest: (&NetworkId, &InteriorLocation),
 		) -> Option<SenderAndLane> {
-			let source = source.relative_to(&T::UniversalLocation::get());
+			let source = source.clone().relative_to(&T::UniversalLocation::get());
 
 			// Check that we have configured a point-to-point lane for 'source' and `dest`.
 			T::Lanes::get()

bridges/modules/xcm-bridge-hub/src/mock.rs

@@ -170,16 +170,13 @@ impl pallet_bridge_messages::WeightInfoExt for TestMessagesWeights {
 parameter_types! {
 	pub const RelayNetwork: NetworkId = NetworkId::Kusama;
 	pub const BridgedRelayNetwork: NetworkId = NetworkId::Polkadot;
-	pub const BridgedRelayNetworkLocation: MultiLocation = MultiLocation {
+	pub BridgedRelayNetworkLocation: Location = (Parent, GlobalConsensus(BridgedRelayNetwork::get())).into();
-		parents: 1,
-		interior: X1(GlobalConsensus(BridgedRelayNetwork::get()))
-	};
 	pub const NonBridgedRelayNetwork: NetworkId = NetworkId::Rococo;
 	pub const BridgeReserve: Balance = 100_000;
-	pub UniversalLocation: InteriorMultiLocation = X2(
+	pub UniversalLocation: InteriorLocation = [
 		GlobalConsensus(RelayNetwork::get()),
 		Parachain(THIS_BRIDGE_HUB_ID),
-	);
+	].into();
 	pub const Penalty: Balance = 1_000;
 }
 
@@ -197,13 +194,13 @@ impl pallet_xcm_bridge_hub::Config for TestRuntime {
 
 parameter_types! {
 	pub TestSenderAndLane: SenderAndLane = SenderAndLane {
-		location: MultiLocation::new(1, X1(Parachain(SIBLING_ASSET_HUB_ID))),
+		location: Location::new(1, [Parachain(SIBLING_ASSET_HUB_ID)]),
 		lane: TEST_LANE_ID,
 	};
-	pub const BridgedDestination: InteriorMultiLocation = X1(
+	pub BridgedDestination: InteriorLocation = [
 		Parachain(BRIDGED_ASSET_HUB_ID)
-	);
+	].into();
-	pub TestLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))> = sp_std::vec![
+	pub TestLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorLocation))> = sp_std::vec![
 		(TestSenderAndLane::get(), (BridgedRelayNetwork::get(), BridgedDestination::get()))
 	];
 }

bridges/snowbridge/parachain/pallets/inbound-queue/src/lib.rs

@@ -54,8 +54,8 @@ use scale_info::TypeInfo;
 use sp_core::{H160, H256};
 use sp_std::{convert::TryFrom, vec};
 use xcm::prelude::{
-	send_xcm, Instruction::SetTopic, Junction::*, Junctions::*, MultiLocation,
+	send_xcm, Instruction::SetTopic, Junction::*, Location, SendError as XcmpSendError, SendXcm,
-	SendError as XcmpSendError, SendXcm, Xcm, XcmContext, XcmHash,
+	Xcm, XcmContext, XcmHash,
 };
 use xcm_executor::traits::TransactAsset;
 
@@ -324,7 +324,7 @@ pub mod pallet {
 		}
 
 		pub fn send_xcm(xcm: Xcm<()>, dest: ParaId) -> Result<XcmHash, Error<T>> {
-			let dest = MultiLocation { parents: 1, interior: X1(Parachain(dest.into())) };
+			let dest = Location::new(1, [Parachain(dest.into())]);
 			let (xcm_hash, _) = send_xcm::<T::XcmSender>(dest, xcm).map_err(Error::<T>::from)?;
 			Ok(xcm_hash)
 		}
@@ -341,8 +341,8 @@ pub mod pallet {
 		pub fn burn_fees(para_id: ParaId, fee: BalanceOf<T>) -> DispatchResult {
 			let dummy_context =
 				XcmContext { origin: None, message_id: Default::default(), topic: None };
-			let dest = MultiLocation { parents: 1, interior: X1(Parachain(para_id.into())) };
+			let dest = Location::new(1, [Parachain(para_id.into())]);
-			let fees = (MultiLocation::parent(), fee.saturated_into::<u128>()).into();
+			let fees = (Location::parent(), fee.saturated_into::<u128>()).into();
 			T::AssetTransactor::can_check_out(&dest, &fees, &dummy_context).map_err(|error| {
 				log::error!(
 					target: LOG_TARGET,

bridges/snowbridge/parachain/pallets/inbound-queue/src/mock.rs

@@ -21,8 +21,8 @@ use sp_runtime::{
 	BuildStorage, FixedU128, MultiSignature,
 };
 use sp_std::convert::From;
-use xcm::v3::{prelude::*, MultiAssets, SendXcm};
+use xcm::v4::{prelude::*, SendXcm};
-use xcm_executor::Assets;
+use xcm_executor::AssetsInHolding;
 
 use crate::{self as inbound_queue};
 
@@ -155,17 +155,16 @@ impl SendXcm for MockXcmSender {
 	type Ticket = Xcm<()>;
 
 	fn validate(
-		dest: &mut Option<MultiLocation>,
+		dest: &mut Option<Location>,
-		xcm: &mut Option<xcm::v3::Xcm<()>>,
+		xcm: &mut Option<Xcm<()>>,
 	) -> SendResult<Self::Ticket> {
-		match dest {
+		if let Some(location) = dest {
-			Some(MultiLocation { interior, .. }) => {
+			match location.unpack() {
-				if let X1(Parachain(1001)) = interior {
+				(_, [Parachain(1001)]) => return Err(XcmpSendError::NotApplicable),
-					return Err(XcmpSendError::NotApplicable)
+				_ => Ok((xcm.clone().unwrap(), Assets::default())),
-				}
+			}
-				Ok((xcm.clone().unwrap(), MultiAssets::default()))
+		} else {
-			},
+			Ok((xcm.clone().unwrap(), Assets::default()))
-			_ => Ok((xcm.clone().unwrap(), MultiAssets::default())),
 		}
 	}
 
@@ -203,45 +202,33 @@ impl StaticLookup for MockChannelLookup {
 
 pub struct SuccessfulTransactor;
 impl TransactAsset for SuccessfulTransactor {
-	fn can_check_in(
+	fn can_check_in(_origin: &Location, _what: &Asset, _context: &XcmContext) -> XcmResult {
-		_origin: &MultiLocation,
-		_what: &MultiAsset,
-		_context: &XcmContext,
-	) -> XcmResult {
 		Ok(())
 	}
 
-	fn can_check_out(
+	fn can_check_out(_dest: &Location, _what: &Asset, _context: &XcmContext) -> XcmResult {
-		_dest: &MultiLocation,
-		_what: &MultiAsset,
-		_context: &XcmContext,
-	) -> XcmResult {
 		Ok(())
 	}
 
-	fn deposit_asset(
+	fn deposit_asset(_what: &Asset, _who: &Location, _context: Option<&XcmContext>) -> XcmResult {
-		_what: &MultiAsset,
-		_who: &MultiLocation,
-		_context: Option<&XcmContext>,
-	) -> XcmResult {
 		Ok(())
 	}
 
 	fn withdraw_asset(
-		_what: &MultiAsset,
+		_what: &Asset,
-		_who: &MultiLocation,
+		_who: &Location,
 		_context: Option<&XcmContext>,
-	) -> Result<Assets, XcmError> {
+	) -> Result<AssetsInHolding, XcmError> {
-		Ok(Assets::default())
+		Ok(AssetsInHolding::default())
 	}
 
 	fn internal_transfer_asset(
-		_what: &MultiAsset,
+		_what: &Asset,
-		_from: &MultiLocation,
+		_from: &Location,
-		_to: &MultiLocation,
+		_to: &Location,
 		_context: &XcmContext,
-	) -> Result<Assets, XcmError> {
+	) -> Result<AssetsInHolding, XcmError> {
-		Ok(Assets::default())
+		Ok(AssetsInHolding::default())
 	}
 }
 

bridges/snowbridge/parachain/pallets/inbound-queue/src/test.rs

@@ -41,8 +41,8 @@ fn test_submit_happy_path() {
 				.into(),
 			nonce: 1,
 			message_id: [
-				27, 217, 88, 127, 46, 143, 199, 70, 236, 66, 212, 244, 85, 221, 153, 104, 175, 37,
+				57, 61, 232, 3, 66, 61, 25, 190, 234, 188, 193, 174, 13, 186, 1, 64, 237, 94, 73,
-				224, 20, 140, 95, 140, 7, 27, 74, 182, 199, 77, 12, 194, 236,
+				83, 14, 18, 209, 213, 78, 121, 43, 108, 251, 245, 107, 67,
 			],
 			fee_burned: 110000000000,
 		}

bridges/snowbridge/parachain/pallets/system/runtime-api/src/lib.rs

@@ -3,11 +3,11 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 
 use snowbridge_core::AgentId;
-use xcm::VersionedMultiLocation;
+use xcm::VersionedLocation;
 
 sp_api::decl_runtime_apis! {
 	pub trait ControlApi
 	{
-		fn agent_id(location: VersionedMultiLocation) -> Option<AgentId>;
+		fn agent_id(location: VersionedLocation) -> Option<AgentId>;
 	}
 }

bridges/snowbridge/parachain/pallets/system/src/api.rs

@@ -3,14 +3,14 @@
 //! Helpers for implementing runtime api
 
 use snowbridge_core::AgentId;
-use xcm::{prelude::*, VersionedMultiLocation};
+use xcm::{prelude::*, VersionedLocation};
 
 use crate::{agent_id_of, Config};
 
-pub fn agent_id<Runtime>(location: VersionedMultiLocation) -> Option<AgentId>
+pub fn agent_id<Runtime>(location: VersionedLocation) -> Option<AgentId>
 where
 	Runtime: Config,
 {
-	let location: MultiLocation = location.try_into().ok()?;
+	let location: Location = location.try_into().ok()?;
 	agent_id_of::<Runtime>(&location).ok()
 }

bridges/snowbridge/parachain/pallets/system/src/benchmarking.rs

@@ -63,7 +63,7 @@ mod benchmarks {
 	#[benchmark]
 	fn create_agent() -> Result<(), BenchmarkError> {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let origin = T::Helper::make_xcm_origin(origin_location);
 		fund_sovereign_account::<T>(origin_para_id.into())?;
 
@@ -76,7 +76,7 @@ mod benchmarks {
 	#[benchmark]
 	fn create_channel() -> Result<(), BenchmarkError> {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let origin = T::Helper::make_xcm_origin(origin_location);
 		fund_sovereign_account::<T>(origin_para_id.into())?;
 
@@ -91,7 +91,7 @@ mod benchmarks {
 	#[benchmark]
 	fn update_channel() -> Result<(), BenchmarkError> {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let origin = T::Helper::make_xcm_origin(origin_location);
 		fund_sovereign_account::<T>(origin_para_id.into())?;
 		SnowbridgeControl::<T>::create_agent(origin.clone())?;
@@ -106,7 +106,7 @@ mod benchmarks {
 	#[benchmark]
 	fn force_update_channel() -> Result<(), BenchmarkError> {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let origin = T::Helper::make_xcm_origin(origin_location);
 		let channel_id: ChannelId = ParaId::from(origin_para_id).into();
 
@@ -123,7 +123,7 @@ mod benchmarks {
 	#[benchmark]
 	fn transfer_native_from_agent() -> Result<(), BenchmarkError> {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let origin = T::Helper::make_xcm_origin(origin_location);
 		fund_sovereign_account::<T>(origin_para_id.into())?;
 		SnowbridgeControl::<T>::create_agent(origin.clone())?;
@@ -138,12 +138,12 @@ mod benchmarks {
 	#[benchmark]
 	fn force_transfer_native_from_agent() -> Result<(), BenchmarkError> {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
-		let origin = T::Helper::make_xcm_origin(origin_location);
+		let origin = T::Helper::make_xcm_origin(origin_location.clone());
 		fund_sovereign_account::<T>(origin_para_id.into())?;
 		SnowbridgeControl::<T>::create_agent(origin.clone())?;
 
-		let versioned_location: VersionedMultiLocation = origin_location.into();
+		let versioned_location: VersionedLocation = origin_location.into();
 
 		#[extrinsic_call]
 		_(RawOrigin::Root, Box::new(versioned_location), H160::default(), 1);

bridges/snowbridge/parachain/pallets/system/src/lib.rs

@@ -87,12 +87,12 @@ pub type AccountIdOf<T> = <T as frame_system::Config>::AccountId;
 pub type PricingParametersOf<T> = PricingParametersRecord<BalanceOf<T>>;
 
 /// Ensure origin location is a sibling
-fn ensure_sibling<T>(location: &MultiLocation) -> Result<(ParaId, H256), DispatchError>
+fn ensure_sibling<T>(location: &Location) -> Result<(ParaId, H256), DispatchError>
 where
 	T: Config,
 {
-	match location {
+	match location.unpack() {
-		MultiLocation { parents: 1, interior: X1(Parachain(para_id)) } => {
+		(1, [Parachain(para_id)]) => {
 			let agent_id = agent_id_of::<T>(location)?;
 			Ok(((*para_id).into(), agent_id))
 		},
@@ -101,7 +101,7 @@ where
 }
 
 /// Hash the location to produce an agent id
-fn agent_id_of<T: Config>(location: &MultiLocation) -> Result<H256, DispatchError> {
+fn agent_id_of<T: Config>(location: &Location) -> Result<H256, DispatchError> {
 	T::AgentIdOf::convert_location(location).ok_or(Error::<T>::LocationConversionFailed.into())
 }
 
@@ -110,7 +110,7 @@ pub trait BenchmarkHelper<O>
 where
 	O: OriginTrait,
 {
-	fn make_xcm_origin(location: MultiLocation) -> O;
+	fn make_xcm_origin(location: Location) -> O;
 }
 
 /// Whether a fee should be withdrawn to an account for sending an outbound message
@@ -145,9 +145,9 @@ pub mod pallet {
 		type OutboundQueue: SendMessage<Balance = BalanceOf<Self>>;
 
 		/// Origin check for XCM locations that can create agents
-		type SiblingOrigin: EnsureOrigin<Self::RuntimeOrigin, Success = MultiLocation>;
+		type SiblingOrigin: EnsureOrigin<Self::RuntimeOrigin, Success = Location>;
 
-		/// Converts MultiLocation to AgentId
+		/// Converts Location to AgentId
 		type AgentIdOf: ConvertLocation<AgentId>;
 
 		/// Token reserved for control operations
@@ -180,7 +180,7 @@ pub mod pallet {
 		},
 		/// An CreateAgent message was sent to the Gateway
 		CreateAgent {
-			location: Box<MultiLocation>,
+			location: Box<Location>,
 			agent_id: AgentId,
 		},
 		/// An CreateChannel message was sent to the Gateway
@@ -299,7 +299,7 @@ pub mod pallet {
 		///
 		/// Fee required: No
 		///
-		/// - `origin`: Must be `MultiLocation`
+		/// - `origin`: Must be `Location`
 		#[pallet::call_index(1)]
 		#[pallet::weight((T::WeightInfo::set_operating_mode(), DispatchClass::Operational))]
 		pub fn set_operating_mode(origin: OriginFor<T>, mode: OperatingMode) -> DispatchResult {
@@ -342,11 +342,11 @@ pub mod pallet {
 		///
 		/// Fee required: Yes
 		///
-		/// - `origin`: Must be `MultiLocation` of a sibling parachain
+		/// - `origin`: Must be `Location` of a sibling parachain
 		#[pallet::call_index(3)]
 		#[pallet::weight(T::WeightInfo::create_agent())]
 		pub fn create_agent(origin: OriginFor<T>) -> DispatchResult {
-			let origin_location: MultiLocation = T::SiblingOrigin::ensure_origin(origin)?;
+			let origin_location: Location = T::SiblingOrigin::ensure_origin(origin)?;
 
 			// Ensure that origin location is some consensus system on a sibling parachain
 			let (para_id, agent_id) = ensure_sibling::<T>(&origin_location)?;
@@ -375,12 +375,12 @@ pub mod pallet {
 		///
 		/// The message is sent over the bridge on BridgeHub's own channel to the Gateway.
 		///
-		/// - `origin`: Must be `MultiLocation`
+		/// - `origin`: Must be `Location`
 		/// - `mode`: Initial operating mode of the channel
 		#[pallet::call_index(4)]
 		#[pallet::weight(T::WeightInfo::create_channel())]
 		pub fn create_channel(origin: OriginFor<T>, mode: OperatingMode) -> DispatchResult {
-			let origin_location: MultiLocation = T::SiblingOrigin::ensure_origin(origin)?;
+			let origin_location: Location = T::SiblingOrigin::ensure_origin(origin)?;
 
 			// Ensure that origin location is a sibling parachain
 			let (para_id, agent_id) = ensure_sibling::<T>(&origin_location)?;
@@ -407,12 +407,12 @@ pub mod pallet {
 		///
 		/// A partial fee will be charged for local processing only.
 		///
-		/// - `origin`: Must be `MultiLocation`
+		/// - `origin`: Must be `Location`
 		/// - `mode`: Initial operating mode of the channel
 		#[pallet::call_index(5)]
 		#[pallet::weight(T::WeightInfo::update_channel())]
 		pub fn update_channel(origin: OriginFor<T>, mode: OperatingMode) -> DispatchResult {
-			let origin_location: MultiLocation = T::SiblingOrigin::ensure_origin(origin)?;
+			let origin_location: Location = T::SiblingOrigin::ensure_origin(origin)?;
 
 			// Ensure that origin location is a sibling parachain
 			let (para_id, _) = ensure_sibling::<T>(&origin_location)?;
@@ -461,7 +461,7 @@ pub mod pallet {
 		///
 		/// A partial fee will be charged for local processing only.
 		///
-		/// - `origin`: Must be `MultiLocation`
+		/// - `origin`: Must be `Location`
 		#[pallet::call_index(7)]
 		#[pallet::weight(T::WeightInfo::transfer_native_from_agent())]
 		pub fn transfer_native_from_agent(
@@ -469,7 +469,7 @@ pub mod pallet {
 			recipient: H160,
 			amount: u128,
 		) -> DispatchResult {
-			let origin_location: MultiLocation = T::SiblingOrigin::ensure_origin(origin)?;
+			let origin_location: Location = T::SiblingOrigin::ensure_origin(origin)?;
 
 			// Ensure that origin location is some consensus system on a sibling parachain
 			let (para_id, agent_id) = ensure_sibling::<T>(&origin_location)?;
@@ -501,14 +501,14 @@ pub mod pallet {
 		#[pallet::weight(T::WeightInfo::force_transfer_native_from_agent())]
 		pub fn force_transfer_native_from_agent(
 			origin: OriginFor<T>,
-			location: Box<VersionedMultiLocation>,
+			location: Box<VersionedLocation>,
 			recipient: H160,
 			amount: u128,
 		) -> DispatchResult {
 			ensure_root(origin)?;
 
 			// Ensure that location is some consensus system on a sibling parachain
-			let location: MultiLocation =
+			let location: Location =
 				(*location).try_into().map_err(|_| Error::<T>::UnsupportedLocationVersion)?;
 			let (_, agent_id) =
 				ensure_sibling::<T>(&location).map_err(|_| Error::<T>::InvalidLocation)?;
@@ -621,8 +621,8 @@ pub mod pallet {
 		/// Initializes agents and channels.
 		pub fn initialize(para_id: ParaId, asset_hub_para_id: ParaId) -> Result<(), DispatchError> {
 			// Asset Hub
-			let asset_hub_location: MultiLocation =
+			let asset_hub_location: Location =
-				ParentThen(X1(Parachain(asset_hub_para_id.into()))).into();
+				ParentThen(Parachain(asset_hub_para_id.into()).into()).into();
 			let asset_hub_agent_id = agent_id_of::<T>(&asset_hub_location)?;
 			let asset_hub_channel_id: ChannelId = asset_hub_para_id.into();
 			Agents::<T>::insert(asset_hub_agent_id, ());
@@ -632,7 +632,7 @@ pub mod pallet {
 			);
 
 			// Governance channels
-			let bridge_hub_agent_id = agent_id_of::<T>(&MultiLocation::here())?;
+			let bridge_hub_agent_id = agent_id_of::<T>(&Location::here())?;
 			// Agent for BridgeHub
 			Agents::<T>::insert(bridge_hub_agent_id, ());
 

bridges/snowbridge/parachain/pallets/system/src/mock.rs

@@ -49,22 +49,22 @@ mod pallet_xcm_origin {
 	// Insert this custom Origin into the aggregate RuntimeOrigin
 	#[pallet::origin]
 	#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, TypeInfo, MaxEncodedLen)]
-	pub struct Origin(pub MultiLocation);
+	pub struct Origin(pub Location);
 
-	impl From<MultiLocation> for Origin {
+	impl From<Location> for Origin {
-		fn from(location: MultiLocation) -> Origin {
+		fn from(location: Location) -> Origin {
 			Origin(location)
 		}
 	}
 
-	/// `EnsureOrigin` implementation succeeding with a `MultiLocation` value to recognize and
+	/// `EnsureOrigin` implementation succeeding with a `Location` value to recognize and
 	/// filter the contained location
 	pub struct EnsureXcm<F>(PhantomData<F>);
-	impl<O: OriginTrait + From<Origin>, F: Contains<MultiLocation>> EnsureOrigin<O> for EnsureXcm<F>
+	impl<O: OriginTrait + From<Origin>, F: Contains<Location>> EnsureOrigin<O> for EnsureXcm<F>
 	where
 		O::PalletsOrigin: From<Origin> + TryInto<Origin, Error = O::PalletsOrigin>,
 	{
-		type Success = MultiLocation;
+		type Success = Location;
 
 		fn try_origin(outer: O) -> Result<Self::Success, O> {
 			outer.try_with_caller(|caller| {
@@ -77,7 +77,7 @@ mod pallet_xcm_origin {
 
 		#[cfg(feature = "runtime-benchmarks")]
 		fn try_successful_origin() -> Result<O, ()> {
-			Ok(O::from(Origin(MultiLocation { parents: 1, interior: X1(Parachain(2000)) })))
+			Ok(O::from(Origin(Location::new(1, [Parachain(2000)]))))
 		}
 	}
 }
@@ -186,9 +186,9 @@ parameter_types! {
 	pub const SS58Prefix: u8 = 42;
 	pub const AnyNetwork: Option<NetworkId> = None;
 	pub const RelayNetwork: Option<NetworkId> = Some(NetworkId::Kusama);
-	pub const RelayLocation: MultiLocation = MultiLocation::parent();
+	pub const RelayLocation: Location = Location::parent();
-	pub UniversalLocation: InteriorMultiLocation =
+	pub UniversalLocation: InteriorLocation =
-		X2(GlobalConsensus(RelayNetwork::get().unwrap()), Parachain(1013));
+		[GlobalConsensus(RelayNetwork::get().unwrap()), Parachain(1013)].into();
 }
 
 pub const DOT: u128 = 10_000_000_000;
@@ -211,7 +211,7 @@ parameter_types! {
 
 #[cfg(feature = "runtime-benchmarks")]
 impl BenchmarkHelper<RuntimeOrigin> for () {
-	fn make_xcm_origin(location: MultiLocation) -> RuntimeOrigin {
+	fn make_xcm_origin(location: Location) -> RuntimeOrigin {
 		RuntimeOrigin::from(pallet_xcm_origin::Origin(location))
 	}
 }
@@ -260,11 +260,11 @@ pub fn new_test_ext(genesis_build: bool) -> sp_io::TestExternalities {
 
 // Test helpers
 
-pub fn make_xcm_origin(location: MultiLocation) -> RuntimeOrigin {
+pub fn make_xcm_origin(location: Location) -> RuntimeOrigin {
 	pallet_xcm_origin::Origin(location).into()
 }
 
-pub fn make_agent_id(location: MultiLocation) -> AgentId {
+pub fn make_agent_id(location: Location) -> AgentId {
 	<Test as snowbridge_system::Config>::AgentIdOf::convert_location(&location)
 		.expect("convert location")
 }

bridges/snowbridge/parachain/pallets/system/src/tests.rs

@@ -11,8 +11,8 @@ use sp_runtime::{AccountId32, DispatchError::BadOrigin, TokenError};
 fn create_agent() {
 	new_test_ext(true).execute_with(|| {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
-		let agent_id = make_agent_id(origin_location);
+		let agent_id = make_agent_id(origin_location.clone());
 		let sovereign_account = sibling_sovereign_account::<Test>(origin_para_id.into());
 
 		// fund sovereign account of origin
@@ -30,7 +30,7 @@ fn create_agent() {
 #[test]
 fn test_agent_for_here() {
 	new_test_ext(true).execute_with(|| {
-		let origin_location = MultiLocation::here();
+		let origin_location = Location::here();
 		let agent_id = make_agent_id(origin_location);
 		assert_eq!(
 			agent_id,
@@ -42,7 +42,7 @@ fn test_agent_for_here() {
 #[test]
 fn create_agent_fails_on_funds_unavailable() {
 	new_test_ext(true).execute_with(|| {
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(2000)) };
+		let origin_location = Location::new(1, [Parachain(2000)]);
 		let origin = make_xcm_origin(origin_location);
 		// Reset balance of sovereign_account to zero so to trigger the FundsUnavailable error
 		let sovereign_account = sibling_sovereign_account::<Test>(2000.into());
@@ -56,19 +56,16 @@ fn create_agent_bad_origin() {
 	new_test_ext(true).execute_with(|| {
 		// relay chain location not allowed
 		assert_noop!(
-			EthereumSystem::create_agent(make_xcm_origin(MultiLocation {
+			EthereumSystem::create_agent(make_xcm_origin(Location::new(1, [],))),
-				parents: 1,
-				interior: Here,
-			})),
 			BadOrigin,
 		);
 
 		// local account location not allowed
 		assert_noop!(
-			EthereumSystem::create_agent(make_xcm_origin(MultiLocation {
+			EthereumSystem::create_agent(make_xcm_origin(Location::new(
-				parents: 0,
+				0,
-				interior: X1(Junction::AccountId32 { network: None, id: [67u8; 32] }),
+				[Junction::AccountId32 { network: None, id: [67u8; 32] }],
-			})),
+			))),
 			BadOrigin,
 		);
 
@@ -243,7 +240,7 @@ fn set_token_transfer_fees_invalid() {
 fn create_channel() {
 	new_test_ext(true).execute_with(|| {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let sovereign_account = sibling_sovereign_account::<Test>(origin_para_id.into());
 		let origin = make_xcm_origin(origin_location);
 
@@ -259,7 +256,7 @@ fn create_channel() {
 fn create_channel_fail_already_exists() {
 	new_test_ext(true).execute_with(|| {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let sovereign_account = sibling_sovereign_account::<Test>(origin_para_id.into());
 		let origin = make_xcm_origin(origin_location);
 
@@ -282,7 +279,7 @@ fn create_channel_bad_origin() {
 		// relay chain location not allowed
 		assert_noop!(
 			EthereumSystem::create_channel(
-				make_xcm_origin(MultiLocation { parents: 1, interior: Here }),
+				make_xcm_origin(Location::new(1, [])),
 				OperatingMode::Normal,
 			),
 			BadOrigin,
@@ -291,13 +288,10 @@ fn create_channel_bad_origin() {
 		// child of sibling location not allowed
 		assert_noop!(
 			EthereumSystem::create_channel(
-				make_xcm_origin(MultiLocation {
+				make_xcm_origin(Location::new(
-					parents: 1,
+					1,
-					interior: X2(
+					[Parachain(2000), Junction::AccountId32 { network: None, id: [67u8; 32] }],
-						Parachain(2000),
+				)),
-						Junction::AccountId32 { network: None, id: [67u8; 32] }
-					),
-				}),
 				OperatingMode::Normal,
 			),
 			BadOrigin,
@@ -306,10 +300,10 @@ fn create_channel_bad_origin() {
 		// local account location not allowed
 		assert_noop!(
 			EthereumSystem::create_channel(
-				make_xcm_origin(MultiLocation {
+				make_xcm_origin(Location::new(
-					parents: 0,
+					0,
-					interior: X1(Junction::AccountId32 { network: None, id: [67u8; 32] }),
+					[Junction::AccountId32 { network: None, id: [67u8; 32] }],
-				}),
+				)),
 				OperatingMode::Normal,
 			),
 			BadOrigin,
@@ -333,7 +327,7 @@ fn create_channel_bad_origin() {
 fn update_channel() {
 	new_test_ext(true).execute_with(|| {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let sovereign_account = sibling_sovereign_account::<Test>(origin_para_id.into());
 		let origin = make_xcm_origin(origin_location);
 
@@ -359,23 +353,17 @@ fn update_channel_bad_origin() {
 
 		// relay chain location not allowed
 		assert_noop!(
-			EthereumSystem::update_channel(
+			EthereumSystem::update_channel(make_xcm_origin(Location::new(1, [])), mode,),
-				make_xcm_origin(MultiLocation { parents: 1, interior: Here }),
-				mode,
-			),
 			BadOrigin,
 		);
 
 		// child of sibling location not allowed
 		assert_noop!(
 			EthereumSystem::update_channel(
-				make_xcm_origin(MultiLocation {
+				make_xcm_origin(Location::new(
-					parents: 1,
+					1,
-					interior: X2(
+					[Parachain(2000), Junction::AccountId32 { network: None, id: [67u8; 32] }],
-						Parachain(2000),
+				)),
-						Junction::AccountId32 { network: None, id: [67u8; 32] }
-					),
-				}),
 				mode,
 			),
 			BadOrigin,
@@ -384,10 +372,10 @@ fn update_channel_bad_origin() {
 		// local account location not allowed
 		assert_noop!(
 			EthereumSystem::update_channel(
-				make_xcm_origin(MultiLocation {
+				make_xcm_origin(Location::new(
-					parents: 0,
+					0,
-					interior: X1(Junction::AccountId32 { network: None, id: [67u8; 32] }),
+					[Junction::AccountId32 { network: None, id: [67u8; 32] }],
-				}),
+				)),
 				mode,
 			),
 			BadOrigin,
@@ -407,7 +395,7 @@ fn update_channel_bad_origin() {
 #[test]
 fn update_channel_fails_not_exist() {
 	new_test_ext(true).execute_with(|| {
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(2000)) };
+		let origin_location = Location::new(1, [Parachain(2000)]);
 		let origin = make_xcm_origin(origin_location);
 
 		// Now try to update it
@@ -422,7 +410,7 @@ fn update_channel_fails_not_exist() {
 fn force_update_channel() {
 	new_test_ext(true).execute_with(|| {
 		let origin_para_id = 2000;
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(origin_para_id)) };
+		let origin_location = Location::new(1, [Parachain(origin_para_id)]);
 		let sovereign_account = sibling_sovereign_account::<Test>(origin_para_id.into());
 		let origin = make_xcm_origin(origin_location);
 
@@ -468,8 +456,8 @@ fn force_update_channel_bad_origin() {
 #[test]
 fn transfer_native_from_agent() {
 	new_test_ext(true).execute_with(|| {
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(2000)) };
+		let origin_location = Location::new(1, [Parachain(2000)]);
-		let origin = make_xcm_origin(origin_location);
+		let origin = make_xcm_origin(origin_location.clone());
 		let recipient: H160 = [27u8; 20].into();
 		let amount = 103435;
 
@@ -477,7 +465,7 @@ fn transfer_native_from_agent() {
 		assert_ok!(EthereumSystem::create_agent(origin.clone()));
 		assert_ok!(EthereumSystem::create_channel(origin, OperatingMode::Normal));
 
-		let origin = make_xcm_origin(origin_location);
+		let origin = make_xcm_origin(origin_location.clone());
 		assert_ok!(EthereumSystem::transfer_native_from_agent(origin, recipient, amount),);
 
 		System::assert_last_event(RuntimeEvent::EthereumSystem(
@@ -494,13 +482,13 @@ fn transfer_native_from_agent() {
 fn force_transfer_native_from_agent() {
 	new_test_ext(true).execute_with(|| {
 		let origin = RuntimeOrigin::root();
-		let location = MultiLocation { parents: 1, interior: X1(Parachain(2000)) };
+		let location = Location::new(1, [Parachain(2000)]);
-		let versioned_location: Box<VersionedMultiLocation> = Box::new(location.into());
+		let versioned_location: Box<VersionedLocation> = Box::new(location.clone().into());
 		let recipient: H160 = [27u8; 20].into();
 		let amount = 103435;
 
 		// First create the agent
-		Agents::<Test>::insert(make_agent_id(location), ());
+		Agents::<Test>::insert(make_agent_id(location.clone()), ());
 
 		assert_ok!(EthereumSystem::force_transfer_native_from_agent(
 			origin,
@@ -530,13 +518,10 @@ fn force_transfer_native_from_agent_bad_origin() {
 			EthereumSystem::force_transfer_native_from_agent(
 				RuntimeOrigin::signed([14; 32].into()),
 				Box::new(
-					MultiLocation {
+					Location::new(
-						parents: 1,
+						1,
-						interior: X2(
+						[Parachain(2000), Junction::AccountId32 { network: None, id: [67u8; 32] }],
-							Parachain(2000),
+					)
-							Junction::AccountId32 { network: None, id: [67u8; 32] }
-						),
-					}
 					.into()
 				),
 				recipient,
@@ -571,8 +556,8 @@ fn check_sibling_sovereign_account() {
 fn charge_fee_for_create_agent() {
 	new_test_ext(true).execute_with(|| {
 		let para_id: u32 = TestParaId::get();
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(para_id)) };
+		let origin_location = Location::new(1, [Parachain(para_id)]);
-		let origin = make_xcm_origin(origin_location);
+		let origin = make_xcm_origin(origin_location.clone());
 		let sovereign_account = sibling_sovereign_account::<Test>(para_id.into());
 		let (_, agent_id) = ensure_sibling::<Test>(&origin_location).unwrap();
 
@@ -605,10 +590,10 @@ fn charge_fee_for_create_agent() {
 fn charge_fee_for_transfer_native_from_agent() {
 	new_test_ext(true).execute_with(|| {
 		let para_id: u32 = TestParaId::get();
-		let origin_location = MultiLocation { parents: 1, interior: X1(Parachain(para_id)) };
+		let origin_location = Location::new(1, [Parachain(para_id)]);
 		let recipient: H160 = [27u8; 20].into();
 		let amount = 103435;
-		let origin = make_xcm_origin(origin_location);
+		let origin = make_xcm_origin(origin_location.clone());
 		let (_, agent_id) = ensure_sibling::<Test>(&origin_location).unwrap();
 
 		let sovereign_account = sibling_sovereign_account::<Test>(para_id.into());

bridges/snowbridge/parachain/primitives/core/src/lib.rs

@@ -28,11 +28,7 @@ use sp_core::H256;
 use sp_io::hashing::keccak_256;
 use sp_runtime::{traits::AccountIdConversion, RuntimeDebug};
 use sp_std::prelude::*;
-use xcm::prelude::{
+use xcm::prelude::{Junction::Parachain, Location};
-	Junction::Parachain,
-	Junctions::{Here, X1},
-	MultiLocation,
-};
 use xcm_builder::{DescribeAllTerminal, DescribeFamily, DescribeLocation, HashedDescription};
 
 /// The ID of an agent contract
@@ -53,9 +49,9 @@ pub fn sibling_sovereign_account_raw(para_id: ParaId) -> [u8; 32] {
 }
 
 pub struct AllowSiblingsOnly;
-impl Contains<MultiLocation> for AllowSiblingsOnly {
+impl Contains<Location> for AllowSiblingsOnly {
-	fn contains(location: &MultiLocation) -> bool {
+	fn contains(location: &Location) -> bool {
-		matches!(location, MultiLocation { parents: 1, interior: X1(Parachain(_)) })
+		matches!(location.unpack(), (1, [Parachain(_)]))
 	}
 }
 
@@ -161,14 +157,14 @@ pub const SECONDARY_GOVERNANCE_CHANNEL: ChannelId =
 
 pub struct DescribeHere;
 impl DescribeLocation for DescribeHere {
-	fn describe_location(l: &MultiLocation) -> Option<Vec<u8>> {
+	fn describe_location(l: &Location) -> Option<Vec<u8>> {
-		match (l.parents, l.interior) {
+		match l.unpack() {
-			(0, Here) => Some(Vec::<u8>::new().encode()),
+			(0, []) => Some(Vec::<u8>::new().encode()),
 			_ => None,
 		}
 	}
 }
 
-/// Creates an AgentId from a MultiLocation. An AgentId is a unique mapping to a Agent contract on
+/// Creates an AgentId from a Location. An AgentId is a unique mapping to a Agent contract on
-/// Ethereum which acts as the sovereign account for the MultiLocation.
+/// Ethereum which acts as the sovereign account for the Location.
 pub type AgentIdOf = HashedDescription<H256, (DescribeHere, DescribeFamily<DescribeAllTerminal>)>;

bridges/snowbridge/parachain/primitives/core/tests/mod.rs

@@ -2,12 +2,12 @@
 mod tests {
 	use frame_support::traits::Contains;
 	use snowbridge_core::AllowSiblingsOnly;
-	use xcm::prelude::{Junction::Parachain, Junctions::X1, MultiLocation};
+	use xcm::prelude::{Junction::Parachain, Location};
 
 	#[test]
 	fn allow_siblings_predicate_only_allows_siblings() {
-		let sibling = MultiLocation::new(1, X1(Parachain(1000)));
+		let sibling = Location::new(1, [Parachain(1000)]);
-		let child = MultiLocation::new(0, X1(Parachain(1000)));
+		let child = Location::new(0, [Parachain(1000)]);
 		assert!(AllowSiblingsOnly::contains(&sibling), "Sibling returns true.");
 		assert!(!AllowSiblingsOnly::contains(&child), "Child returns false.");
 	}

bridges/snowbridge/parachain/primitives/router/src/inbound/mod.rs

@@ -161,13 +161,13 @@ where
 {
 	fn convert_register_token(chain_id: u64, token: H160, fee: u128) -> (Xcm<()>, Balance) {
 		let network = Ethereum { chain_id };
-		let xcm_fee: MultiAsset = (MultiLocation::parent(), fee).into();
+		let xcm_fee: Asset = (Location::parent(), fee).into();
-		let deposit: MultiAsset = (MultiLocation::parent(), CreateAssetDeposit::get()).into();
+		let deposit: Asset = (Location::parent(), CreateAssetDeposit::get()).into();
 
 		let total_amount = fee + CreateAssetDeposit::get();
-		let total: MultiAsset = (MultiLocation::parent(), total_amount).into();
+		let total: Asset = (Location::parent(), total_amount).into();
 
-		let bridge_location: MultiLocation = (Parent, Parent, GlobalConsensus(network)).into();
+		let bridge_location: Location = (Parent, Parent, GlobalConsensus(network)).into();
 
 		let owner = GlobalConsensusEthereumConvertsFor::<[u8; 32]>::from_chain_id(&chain_id);
 		let asset_id = Self::convert_token_address(network, token);
@@ -182,7 +182,7 @@ where
 			// Fund the snowbridge sovereign with the required deposit for creation.
 			DepositAsset { assets: Definite(deposit.into()), beneficiary: bridge_location },
 			// Only our inbound-queue pallet is allowed to invoke `UniversalOrigin`
-			DescendOrigin(X1(PalletInstance(inbound_queue_pallet_index))),
+			DescendOrigin(PalletInstance(inbound_queue_pallet_index).into()),
 			// Change origin to the bridge.
 			UniversalOrigin(GlobalConsensus(network)),
 			// Call create_asset on foreign assets pallet.
@@ -216,40 +216,37 @@ where
 		asset_hub_fee: u128,
 	) -> (Xcm<()>, Balance) {
 		let network = Ethereum { chain_id };
-		let asset_hub_fee_asset: MultiAsset = (MultiLocation::parent(), asset_hub_fee).into();
+		let asset_hub_fee_asset: Asset = (Location::parent(), asset_hub_fee).into();
-		let asset: MultiAsset = (Self::convert_token_address(network, token), amount).into();
+		let asset: Asset = (Self::convert_token_address(network, token), amount).into();
 
 		let (dest_para_id, beneficiary, dest_para_fee) = match destination {
 			// Final destination is a 32-byte account on AssetHub
-			Destination::AccountId32 { id } => (
+			Destination::AccountId32 { id } =>
-				None,
+				(None, Location::new(0, [AccountId32 { network: None, id }]), 0),
-				MultiLocation { parents: 0, interior: X1(AccountId32 { network: None, id }) },
-				0,
-			),
 			// Final destination is a 32-byte account on a sibling of AssetHub
 			Destination::ForeignAccountId32 { para_id, id, fee } => (
 				Some(para_id),
-				MultiLocation { parents: 0, interior: X1(AccountId32 { network: None, id }) },
+				Location::new(0, [AccountId32 { network: None, id }]),
 				// Total fee needs to cover execution on AssetHub and Sibling
 				fee,
 			),
 			// Final destination is a 20-byte account on a sibling of AssetHub
 			Destination::ForeignAccountId20 { para_id, id, fee } => (
 				Some(para_id),
-				MultiLocation { parents: 0, interior: X1(AccountKey20 { network: None, key: id }) },
+				Location::new(0, [AccountKey20 { network: None, key: id }]),
 				// Total fee needs to cover execution on AssetHub and Sibling
 				fee,
 			),
 		};
 
 		let total_fees = asset_hub_fee.saturating_add(dest_para_fee);
-		let total_fee_asset: MultiAsset = (MultiLocation::parent(), total_fees).into();
+		let total_fee_asset: Asset = (Location::parent(), total_fees).into();
 		let inbound_queue_pallet_index = InboundQueuePalletInstance::get();
 
 		let mut instructions = vec![
 			ReceiveTeleportedAsset(total_fee_asset.into()),
 			BuyExecution { fees: asset_hub_fee_asset, weight_limit: Unlimited },
-			DescendOrigin(X1(PalletInstance(inbound_queue_pallet_index))),
+			DescendOrigin(PalletInstance(inbound_queue_pallet_index).into()),
 			UniversalOrigin(GlobalConsensus(network)),
 			ReserveAssetDeposited(asset.clone().into()),
 			ClearOrigin,
@@ -257,14 +254,13 @@ where
 
 		match dest_para_id {
 			Some(dest_para_id) => {
-				let dest_para_fee_asset: MultiAsset =
+				let dest_para_fee_asset: Asset = (Location::parent(), dest_para_fee).into();
-					(MultiLocation::parent(), dest_para_fee).into();
 
 				instructions.extend(vec![
 					// Perform a deposit reserve to send to destination chain.
 					DepositReserveAsset {
 						assets: Definite(vec![dest_para_fee_asset.clone(), asset.clone()].into()),
-						dest: MultiLocation { parents: 1, interior: X1(Parachain(dest_para_id)) },
+						dest: Location::new(1, [Parachain(dest_para_id)]),
 						xcm: vec![
 							// Buy execution on target.
 							BuyExecution { fees: dest_para_fee_asset, weight_limit: Unlimited },
@@ -286,15 +282,12 @@ where
 		(instructions.into(), total_fees.into())
 	}
 
-	// Convert ERC20 token address to a Multilocation that can be understood by Assets Hub.
+	// Convert ERC20 token address to a location that can be understood by Assets Hub.
-	fn convert_token_address(network: NetworkId, token: H160) -> MultiLocation {
+	fn convert_token_address(network: NetworkId, token: H160) -> Location {
-		MultiLocation {
+		Location::new(
-			parents: 2,
+			2,
-			interior: X2(
+			[GlobalConsensus(network), AccountKey20 { network: None, key: token.into() }],
-				GlobalConsensus(network),
+		)
-				AccountKey20 { network: None, key: token.into() },
-			),
-		}
 	}
 }
 
@@ -303,12 +296,11 @@ impl<AccountId> ConvertLocation<AccountId> for GlobalConsensusEthereumConvertsFo
 where
 	AccountId: From<[u8; 32]> + Clone,
 {
-	fn convert_location(location: &MultiLocation) -> Option<AccountId> {
+	fn convert_location(location: &Location) -> Option<AccountId> {
-		if let MultiLocation { interior: X1(GlobalConsensus(Ethereum { chain_id })), .. } = location
+		match location.unpack() {
-		{
+			(_, [GlobalConsensus(Ethereum { chain_id })]) =>
-			Some(Self::from_chain_id(chain_id).into())
+				Some(Self::from_chain_id(chain_id).into()),
-		} else {
+			_ => None,
-			None
 		}
 	}
 }

bridges/snowbridge/parachain/primitives/router/src/inbound/tests.rs

@@ -2,7 +2,7 @@ use super::GlobalConsensusEthereumConvertsFor;
 use crate::inbound::CallIndex;
 use frame_support::parameter_types;
 use hex_literal::hex;
-use xcm::v3::prelude::*;
+use xcm::v4::prelude::*;
 use xcm_executor::traits::ConvertLocation;
 
 const NETWORK: NetworkId = Ethereum { chain_id: 11155111 };
@@ -20,7 +20,7 @@ parameter_types! {
 fn test_contract_location_with_network_converts_successfully() {
 	let expected_account: [u8; 32] =
 		hex!("ce796ae65569a670d0c1cc1ac12515a3ce21b5fbf729d63d7b289baad070139d");
-	let contract_location = MultiLocation { parents: 2, interior: X1(GlobalConsensus(NETWORK)) };
+	let contract_location = Location::new(2, [GlobalConsensus(NETWORK)]);
 
 	let account =
 		GlobalConsensusEthereumConvertsFor::<[u8; 32]>::convert_location(&contract_location)
@@ -31,8 +31,7 @@ fn test_contract_location_with_network_converts_successfully() {
 
 #[test]
 fn test_contract_location_with_incorrect_location_fails_convert() {
-	let contract_location =
+	let contract_location = Location::new(2, [GlobalConsensus(Polkadot), Parachain(1000)]);
-		MultiLocation { parents: 2, interior: X2(GlobalConsensus(Polkadot), Parachain(1000)) };
 
 	assert_eq!(
 		GlobalConsensusEthereumConvertsFor::<[u8; 32]>::convert_location(&contract_location),

bridges/snowbridge/parachain/primitives/router/src/outbound/mod.rs

@@ -16,7 +16,7 @@ use snowbridge_core::{
 };
 use sp_core::{H160, H256};
 use sp_std::{iter::Peekable, marker::PhantomData, prelude::*};
-use xcm::v3::prelude::*;
+use xcm::v4::prelude::*;
 use xcm_executor::traits::{ConvertLocation, ExportXcm};
 
 pub struct EthereumBlobExporter<
@@ -29,7 +29,7 @@ pub struct EthereumBlobExporter<
 impl<UniversalLocation, EthereumNetwork, OutboundQueue, AgentHashedDescription> ExportXcm
 	for EthereumBlobExporter<UniversalLocation, EthereumNetwork, OutboundQueue, AgentHashedDescription>
 where
-	UniversalLocation: Get<InteriorMultiLocation>,
+	UniversalLocation: Get<InteriorLocation>,
 	EthereumNetwork: Get<NetworkId>,
 	OutboundQueue: SendMessage<Balance = u128>,
 	AgentHashedDescription: ConvertLocation<H256>,
@@ -39,8 +39,8 @@ where
 	fn validate(
 		network: NetworkId,
 		_channel: u32,
-		universal_source: &mut Option<InteriorMultiLocation>,
+		universal_source: &mut Option<InteriorLocation>,
-		destination: &mut Option<InteriorMultiLocation>,
+		destination: &mut Option<InteriorLocation>,
 		message: &mut Option<Xcm<()>>,
 	) -> SendResult<Self::Ticket> {
 		let expected_network = EthereumNetwork::get();
@@ -74,8 +74,8 @@ where
 			return Err(SendError::NotApplicable)
 		}
 
-		let para_id = match local_sub {
+		let para_id = match local_sub.as_slice() {
-			X1(Parachain(para_id)) => para_id,
+			[Parachain(para_id)] => *para_id,
 			_ => {
 				log::error!(target: "xcm::ethereum_blob_exporter", "could not get parachain id from universal source '{local_sub:?}'.");
 				return Err(SendError::MissingArgument)
@@ -93,7 +93,7 @@ where
 			SendError::Unroutable
 		})?;
 
-		let source_location: MultiLocation = MultiLocation { parents: 1, interior: local_sub };
+		let source_location = Location::new(1, local_sub.clone());
 		let agent_id = match AgentHashedDescription::convert_location(&source_location) {
 			Some(id) => id,
 			None => {
@@ -116,8 +116,8 @@ where
 			SendError::Unroutable
 		})?;
 
-		// convert fee to MultiAsset
+		// convert fee to Asset
-		let fee = MultiAsset::from((MultiLocation::parent(), fee.total())).into();
+		let fee = Asset::from((Location::parent(), fee.total())).into();
 
 		Ok(((ticket.encode(), message_id), fee))
 	}
@@ -216,8 +216,8 @@ impl<'a, Call> XcmConverter<'a, Call> {
 
 		// assert that the beneficiary is AccountKey20.
 		let recipient = match_expression!(
-			beneficiary,
+			beneficiary.unpack(),
-			MultiLocation { parents: 0, interior: X1(AccountKey20 { network, key }) }
+			(0, [AccountKey20 { network, key }])
 				if self.network_matches(network),
 			H160(*key)
 		)
@@ -245,14 +245,15 @@ impl<'a, Call> XcmConverter<'a, Call> {
 			}
 		}
 
-		let (token, amount) = match_expression!(
+		let (token, amount) = match reserve_asset {
-			reserve_asset,
+			Asset { id: AssetId(inner_location), fun: Fungible(amount) } =>
-			MultiAsset {
+				match inner_location.unpack() {
-				id: Concrete(MultiLocation { parents: 0, interior: X1(AccountKey20 { network , key })}),
+					(0, [AccountKey20 { network, key }]) if self.network_matches(network) =>
-				fun: Fungible(amount)
+						Some((H160(*key), *amount)),
-			} if self.network_matches(network),
+					_ => None,
-			(H160(*key), *amount)
+				},
-		)
+			_ => None,
+		}
 		.ok_or(AssetResolutionFailed)?;
 
 		// transfer amount must be greater than 0.

bridges/snowbridge/parachain/primitives/router/src/outbound/tests.rs

@@ -11,7 +11,7 @@ use super::*;
 parameter_types! {
 	const MaxMessageSize: u32 = u32::MAX;
 	const RelayNetwork: NetworkId = Polkadot;
-	const UniversalLocation: InteriorMultiLocation = X2(GlobalConsensus(RelayNetwork::get()), Parachain(1013));
+	UniversalLocation: InteriorLocation = [GlobalConsensus(RelayNetwork::get()), Parachain(1013)].into();
 	const BridgedNetwork: NetworkId =  Ethereum{ chain_id: 1 };
 	const NonBridgedNetwork: NetworkId =  Ethereum{ chain_id: 2 };
 }
@@ -61,8 +61,8 @@ impl SendMessageFeeProvider for MockErrOutboundQueue {
 fn exporter_validate_with_unknown_network_yields_not_applicable() {
 	let network = Ethereum { chain_id: 1337 };
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> = None;
+	let mut universal_source: Option<InteriorLocation> = None;
-	let mut destination: Option<InteriorMultiLocation> = None;
+	let mut destination: Option<InteriorLocation> = None;
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -80,8 +80,8 @@ fn exporter_validate_with_unknown_network_yields_not_applicable() {
 fn exporter_validate_with_invalid_destination_yields_missing_argument() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> = None;
+	let mut universal_source: Option<InteriorLocation> = None;
-	let mut destination: Option<InteriorMultiLocation> = None;
+	let mut destination: Option<InteriorLocation> = None;
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -99,10 +99,11 @@ fn exporter_validate_with_invalid_destination_yields_missing_argument() {
 fn exporter_validate_with_x8_destination_yields_not_applicable() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> = None;
+	let mut universal_source: Option<InteriorLocation> = None;
-	let mut destination: Option<InteriorMultiLocation> = Some(X8(
+	let mut destination: Option<InteriorLocation> = Some(
-		OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild,
+		[OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild, OnlyChild]
-	));
+			.into(),
+	);
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -120,8 +121,8 @@ fn exporter_validate_with_x8_destination_yields_not_applicable() {
 fn exporter_validate_without_universal_source_yields_missing_argument() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> = None;
+	let mut universal_source: Option<InteriorLocation> = None;
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -139,8 +140,8 @@ fn exporter_validate_without_universal_source_yields_missing_argument() {
 fn exporter_validate_without_global_universal_location_yields_unroutable() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> = Here.into();
+	let mut universal_source: Option<InteriorLocation> = Here.into();
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -158,8 +159,8 @@ fn exporter_validate_without_global_universal_location_yields_unroutable() {
 fn exporter_validate_without_global_bridge_location_yields_not_applicable() {
 	let network = NonBridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> = Here.into();
+	let mut universal_source: Option<InteriorLocation> = Here.into();
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -177,9 +178,9 @@ fn exporter_validate_without_global_bridge_location_yields_not_applicable() {
 fn exporter_validate_with_remote_universal_source_yields_not_applicable() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> =
+	let mut universal_source: Option<InteriorLocation> =
-		Some(X2(GlobalConsensus(Kusama), Parachain(1000)));
+		Some([GlobalConsensus(Kusama), Parachain(1000)].into());
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -197,8 +198,8 @@ fn exporter_validate_with_remote_universal_source_yields_not_applicable() {
 fn exporter_validate_without_para_id_in_source_yields_missing_argument() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> = Some(X1(GlobalConsensus(Polkadot)));
+	let mut universal_source: Option<InteriorLocation> = Some(GlobalConsensus(Polkadot).into());
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -216,9 +217,9 @@ fn exporter_validate_without_para_id_in_source_yields_missing_argument() {
 fn exporter_validate_complex_para_id_in_source_yields_missing_argument() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> =
+	let mut universal_source: Option<InteriorLocation> =
-		Some(X3(GlobalConsensus(Polkadot), Parachain(1000), PalletInstance(12)));
+		Some([GlobalConsensus(Polkadot), Parachain(1000), PalletInstance(12)].into());
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -236,9 +237,9 @@ fn exporter_validate_complex_para_id_in_source_yields_missing_argument() {
 fn exporter_validate_without_xcm_message_yields_missing_argument() {
 	let network = BridgedNetwork::get();
 	let channel: u32 = 0;
-	let mut universal_source: Option<InteriorMultiLocation> =
+	let mut universal_source: Option<InteriorLocation> =
-		Some(X2(GlobalConsensus(Polkadot), Parachain(1000)));
+		Some([GlobalConsensus(Polkadot), Parachain(1000)].into());
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 	let mut message: Option<Xcm<()>> = None;
 
 	let result = EthereumBlobExporter::<
@@ -255,23 +256,23 @@ fn exporter_validate_without_xcm_message_yields_missing_argument() {
 #[test]
 fn exporter_validate_with_max_target_fee_yields_unroutable() {
 	let network = BridgedNetwork::get();
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 
-	let mut universal_source: Option<InteriorMultiLocation> =
+	let mut universal_source: Option<InteriorLocation> =
-		Some(X2(GlobalConsensus(Polkadot), Parachain(1000)));
+		Some([GlobalConsensus(Polkadot), Parachain(1000)].into());
 
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
 	let channel: u32 = 0;
-	let fee = MultiAsset { id: Concrete(Here.into()), fun: Fungible(1000) };
+	let fee = Asset { id: AssetId(Here.into()), fun: Fungible(1000) };
-	let fees: MultiAssets = vec![fee.clone()].into();
+	let fees: Assets = vec![fee.clone()].into();
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId(AccountKey20 { network: None, key: token_address }.into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let mut message: Option<Xcm<()>> = Some(
 		vec![
@@ -280,7 +281,7 @@ fn exporter_validate_with_max_target_fee_yields_unroutable() {
 			WithdrawAsset(assets),
 			DepositAsset {
 				assets: filter,
-				beneficiary: X1(AccountKey20 { network: Some(network), key: beneficiary_address })
+				beneficiary: AccountKey20 { network: Some(network), key: beneficiary_address }
 					.into(),
 			},
 			SetTopic([0; 32]),
@@ -303,14 +304,14 @@ fn exporter_validate_with_max_target_fee_yields_unroutable() {
 #[test]
 fn exporter_validate_with_unparsable_xcm_yields_unroutable() {
 	let network = BridgedNetwork::get();
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 
-	let mut universal_source: Option<InteriorMultiLocation> =
+	let mut universal_source: Option<InteriorLocation> =
-		Some(X2(GlobalConsensus(Polkadot), Parachain(1000)));
+		Some([GlobalConsensus(Polkadot), Parachain(1000)].into());
 
 	let channel: u32 = 0;
-	let fee = MultiAsset { id: Concrete(Here.into()), fun: Fungible(1000) };
+	let fee = Asset { id: AssetId(Here.into()), fun: Fungible(1000) };
-	let fees: MultiAssets = vec![fee.clone()].into();
+	let fees: Assets = vec![fee.clone()].into();
 
 	let mut message: Option<Xcm<()>> =
 		Some(vec![WithdrawAsset(fees), BuyExecution { fees: fee, weight_limit: Unlimited }].into());
@@ -330,22 +331,22 @@ fn exporter_validate_with_unparsable_xcm_yields_unroutable() {
 #[test]
 fn exporter_validate_xcm_success_case_1() {
 	let network = BridgedNetwork::get();
-	let mut destination: Option<InteriorMultiLocation> = Here.into();
+	let mut destination: Option<InteriorLocation> = Here.into();
 
-	let mut universal_source: Option<InteriorMultiLocation> =
+	let mut universal_source: Option<InteriorLocation> =
-		Some(X2(GlobalConsensus(Polkadot), Parachain(1000)));
+		Some([GlobalConsensus(Polkadot), Parachain(1000)].into());
 
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
 	let channel: u32 = 0;
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
 	let fee = assets.clone().get(0).unwrap().clone();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let mut message: Option<Xcm<()>> = Some(
 		vec![
@@ -354,7 +355,7 @@ fn exporter_validate_xcm_success_case_1() {
 			BuyExecution { fees: fee, weight_limit: Unlimited },
 			DepositAsset {
 				assets: filter,
-				beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+				beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 			},
 			SetTopic([0; 32]),
 		]
@@ -391,12 +392,12 @@ fn xcm_converter_convert_success() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -404,7 +405,7 @@ fn xcm_converter_convert_success() {
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -426,18 +427,18 @@ fn xcm_converter_convert_without_buy_execution_yields_success() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -459,12 +460,12 @@ fn xcm_converter_convert_with_wildcard_all_asset_filter_succeeds() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(All);
+	let filter: AssetFilter = Wild(All);
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -472,7 +473,7 @@ fn xcm_converter_convert_with_wildcard_all_asset_filter_succeeds() {
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -494,13 +495,12 @@ fn xcm_converter_convert_with_fees_less_than_reserve_yields_success() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let asset_location = X1(AccountKey20 { network: None, key: token_address }).into();
+	let asset_location: Location = [AccountKey20 { network: None, key: token_address }].into();
-	let fee_asset = MultiAsset { id: Concrete(asset_location), fun: Fungible(500) };
+	let fee_asset = Asset { id: AssetId(asset_location.clone()), fun: Fungible(500) };
 
-	let assets: MultiAssets =
+	let assets: Assets = vec![Asset { id: AssetId(asset_location), fun: Fungible(1000) }].into();
-		vec![MultiAsset { id: Concrete(asset_location), fun: Fungible(1000) }].into();
 
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -508,7 +508,7 @@ fn xcm_converter_convert_with_fees_less_than_reserve_yields_success() {
 		BuyExecution { fees: fee_asset, weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -530,19 +530,19 @@ fn xcm_converter_convert_without_set_topic_yields_set_topic_expected() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		ClearTopic,
 	]
@@ -557,8 +557,8 @@ fn xcm_converter_convert_with_partial_message_yields_unexpected_end_of_xcm() {
 	let network = BridgedNetwork::get();
 
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
@@ -576,16 +576,13 @@ fn xcm_converter_with_different_fee_asset_fails() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let asset_location = X1(AccountKey20 { network: None, key: token_address }).into();
+	let asset_location = [AccountKey20 { network: None, key: token_address }].into();
-	let fee_asset = MultiAsset {
+	let fee_asset =
-		id: Concrete(MultiLocation { parents: 0, interior: Here }),
+		Asset { id: AssetId(Location { parents: 0, interior: Here }), fun: Fungible(1000) };
-		fun: Fungible(1000),
-	};
 
-	let assets: MultiAssets =
+	let assets: Assets = vec![Asset { id: AssetId(asset_location), fun: Fungible(1000) }].into();
-		vec![MultiAsset { id: Concrete(asset_location), fun: Fungible(1000) }].into();
 
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -593,7 +590,7 @@ fn xcm_converter_with_different_fee_asset_fails() {
 		BuyExecution { fees: fee_asset, weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -610,13 +607,12 @@ fn xcm_converter_with_fees_greater_than_reserve_fails() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let asset_location = X1(AccountKey20 { network: None, key: token_address }).into();
+	let asset_location: Location = [AccountKey20 { network: None, key: token_address }].into();
-	let fee_asset = MultiAsset { id: Concrete(asset_location), fun: Fungible(1001) };
+	let fee_asset = Asset { id: AssetId(asset_location.clone()), fun: Fungible(1001) };
 
-	let assets: MultiAssets =
+	let assets: Assets = vec![Asset { id: AssetId(asset_location), fun: Fungible(1000) }].into();
-		vec![MultiAsset { id: Concrete(asset_location), fun: Fungible(1000) }].into();
 
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -624,7 +620,7 @@ fn xcm_converter_with_fees_greater_than_reserve_fails() {
 		BuyExecution { fees: fee_asset, weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -653,12 +649,12 @@ fn xcm_converter_convert_with_extra_instructions_yields_end_of_xcm_message_expec
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -666,7 +662,7 @@ fn xcm_converter_convert_with_extra_instructions_yields_end_of_xcm_message_expec
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 		ClearError,
@@ -685,19 +681,19 @@ fn xcm_converter_convert_without_withdraw_asset_yields_withdraw_expected() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId([AccountKey20 { network: None, key: token_address }].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		ClearOrigin,
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -714,8 +710,8 @@ fn xcm_converter_convert_without_withdraw_asset_yields_deposit_expected() {
 
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId(AccountKey20 { network: None, key: token_address }.into()),
 		fun: Fungible(1000),
 	}]
 	.into();
@@ -741,11 +737,11 @@ fn xcm_converter_convert_without_assets_yields_no_reserve_assets() {
 
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![].into();
+	let assets: Assets = vec![].into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
-	let fee = MultiAsset {
+	let fee = Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId(AccountKey20 { network: None, key: token_address }.into()),
 		fun: Fungible(1000),
 	};
 
@@ -755,7 +751,7 @@ fn xcm_converter_convert_without_assets_yields_no_reserve_assets() {
 		BuyExecution { fees: fee, weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -774,18 +770,18 @@ fn xcm_converter_convert_with_two_assets_yields_too_many_assets() {
 	let token_address_2: [u8; 20] = hex!("1100000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![
+	let assets: Assets = vec![
-		MultiAsset {
+		Asset {
-			id: Concrete(X1(AccountKey20 { network: None, key: token_address_1 }).into()),
+			id: AssetId(AccountKey20 { network: None, key: token_address_1 }.into()),
 			fun: Fungible(1000),
 		},
-		MultiAsset {
+		Asset {
-			id: Concrete(X1(AccountKey20 { network: None, key: token_address_2 }).into()),
+			id: AssetId(AccountKey20 { network: None, key: token_address_2 }.into()),
 			fun: Fungible(500),
 		},
 	]
 	.into();
-	let filter: MultiAssetFilter = assets.clone().into();
+	let filter: AssetFilter = assets.clone().into();
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -793,7 +789,7 @@ fn xcm_converter_convert_with_two_assets_yields_too_many_assets() {
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -811,12 +807,12 @@ fn xcm_converter_convert_without_consuming_filter_yields_filter_does_not_consume
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId(AccountKey20 { network: None, key: token_address }.into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(WildMultiAsset::AllCounted(0));
+	let filter: AssetFilter = Wild(WildAsset::AllCounted(0));
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -824,7 +820,7 @@ fn xcm_converter_convert_without_consuming_filter_yields_filter_does_not_consume
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -842,12 +838,12 @@ fn xcm_converter_convert_with_zero_amount_asset_yields_zero_asset_transfer() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId(AccountKey20 { network: None, key: token_address }.into()),
 		fun: Fungible(0),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(WildMultiAsset::AllCounted(1));
+	let filter: AssetFilter = Wild(WildAsset::AllCounted(1));
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -855,7 +851,7 @@ fn xcm_converter_convert_with_zero_amount_asset_yields_zero_asset_transfer() {
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -872,12 +868,12 @@ fn xcm_converter_convert_non_ethereum_asset_yields_asset_resolution_failed() {
 
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X3(GlobalConsensus(Polkadot), Parachain(1000), GeneralIndex(0)).into()),
+		id: AssetId([GlobalConsensus(Polkadot), Parachain(1000), GeneralIndex(0)].into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(WildMultiAsset::AllCounted(1));
+	let filter: AssetFilter = Wild(WildAsset::AllCounted(1));
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -885,7 +881,7 @@ fn xcm_converter_convert_non_ethereum_asset_yields_asset_resolution_failed() {
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -903,14 +899,14 @@ fn xcm_converter_convert_non_ethereum_chain_asset_yields_asset_resolution_failed
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(
+		id: AssetId(
-			X1(AccountKey20 { network: Some(Ethereum { chain_id: 2 }), key: token_address }).into(),
+			AccountKey20 { network: Some(Ethereum { chain_id: 2 }), key: token_address }.into(),
 		),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(WildMultiAsset::AllCounted(1));
+	let filter: AssetFilter = Wild(WildAsset::AllCounted(1));
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -918,7 +914,7 @@ fn xcm_converter_convert_non_ethereum_chain_asset_yields_asset_resolution_failed
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -936,14 +932,14 @@ fn xcm_converter_convert_non_ethereum_chain_yields_asset_resolution_failed() {
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(
+		id: AssetId(
-			X1(AccountKey20 { network: Some(NonBridgedNetwork::get()), key: token_address }).into(),
+			[AccountKey20 { network: Some(NonBridgedNetwork::get()), key: token_address }].into(),
 		),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(WildMultiAsset::AllCounted(1));
+	let filter: AssetFilter = Wild(WildAsset::AllCounted(1));
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -951,7 +947,7 @@ fn xcm_converter_convert_non_ethereum_chain_yields_asset_resolution_failed() {
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 { network: None, key: beneficiary_address }).into(),
+			beneficiary: AccountKey20 { network: None, key: beneficiary_address }.into(),
 		},
 		SetTopic([0; 32]),
 	]
@@ -971,23 +967,23 @@ fn xcm_converter_convert_with_non_ethereum_beneficiary_yields_beneficiary_resolu
 	let beneficiary_address: [u8; 32] =
 		hex!("2000000000000000000000000000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId(AccountKey20 { network: None, key: token_address }.into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(WildMultiAsset::AllCounted(1));
+	let filter: AssetFilter = Wild(WildAsset::AllCounted(1));
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
 		ClearOrigin,
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X3(
+			beneficiary: [
 				GlobalConsensus(Polkadot),
 				Parachain(1000),
 				AccountId32 { network: Some(Polkadot), id: beneficiary_address },
-			)
+			]
 			.into(),
 		},
 		SetTopic([0; 32]),
@@ -1007,12 +1003,12 @@ fn xcm_converter_convert_with_non_ethereum_chain_beneficiary_yields_beneficiary_
 	let token_address: [u8; 20] = hex!("1000000000000000000000000000000000000000");
 	let beneficiary_address: [u8; 20] = hex!("2000000000000000000000000000000000000000");
 
-	let assets: MultiAssets = vec![MultiAsset {
+	let assets: Assets = vec![Asset {
-		id: Concrete(X1(AccountKey20 { network: None, key: token_address }).into()),
+		id: AssetId(AccountKey20 { network: None, key: token_address }.into()),
 		fun: Fungible(1000),
 	}]
 	.into();
-	let filter: MultiAssetFilter = Wild(WildMultiAsset::AllCounted(1));
+	let filter: AssetFilter = Wild(WildAsset::AllCounted(1));
 
 	let message: Xcm<()> = vec![
 		WithdrawAsset(assets.clone()),
@@ -1020,10 +1016,10 @@ fn xcm_converter_convert_with_non_ethereum_chain_beneficiary_yields_beneficiary_
 		BuyExecution { fees: assets.get(0).unwrap().clone(), weight_limit: Unlimited },
 		DepositAsset {
 			assets: filter,
-			beneficiary: X1(AccountKey20 {
+			beneficiary: AccountKey20 {
 				network: Some(Ethereum { chain_id: 2 }),
 				key: beneficiary_address,
-			})
+			}
 			.into(),
 		},
 		SetTopic([0; 32]),
@@ -1037,14 +1033,13 @@ fn xcm_converter_convert_with_non_ethereum_chain_beneficiary_yields_beneficiary_
 
 #[test]
 fn test_describe_asset_hub() {
-	let legacy_location: MultiLocation =
+	let legacy_location: Location = Location::new(0, [Parachain(1000)]);
-		MultiLocation { parents: 0, interior: X1(Parachain(1000)) };
 	let legacy_agent_id = AgentIdOf::convert_location(&legacy_location).unwrap();
 	assert_eq!(
 		legacy_agent_id,
 		hex!("72456f48efed08af20e5b317abf8648ac66e86bb90a411d9b0b713f7364b75b4").into()
 	);
-	let location: MultiLocation = MultiLocation { parents: 1, interior: X1(Parachain(1000)) };
+	let location: Location = Location::new(1, [Parachain(1000)]);
 	let agent_id = AgentIdOf::convert_location(&location).unwrap();
 	assert_eq!(
 		agent_id,
@@ -1054,7 +1049,7 @@ fn test_describe_asset_hub() {
 
 #[test]
 fn test_describe_here() {
-	let location: MultiLocation = MultiLocation { parents: 0, interior: Here };
+	let location: Location = Location::new(0, []);
 	let agent_id = AgentIdOf::convert_location(&location).unwrap();
 	assert_eq!(
 		agent_id,

bridges/snowbridge/parachain/runtime/runtime-common/src/lib.rs

@@ -46,43 +46,38 @@ impl<Balance, AccountId, FeeAssetLocation, EthereumNetwork, AssetTransactor, Fee
 	> where
 	Balance: BaseArithmetic + Unsigned + Copy + From<u128> + Into<u128>,
 	AccountId: Clone + Into<[u8; 32]> + From<[u8; 32]>,
-	FeeAssetLocation: Get<MultiLocation>,
+	FeeAssetLocation: Get<Location>,
 	EthereumNetwork: Get<NetworkId>,
 	AssetTransactor: TransactAsset,
 	FeeProvider: SendMessageFeeProvider<Balance = Balance>,
 {
-	fn handle_fee(
+	fn handle_fee(fees: Assets, context: Option<&XcmContext>, reason: FeeReason) -> Assets {
-		fees: MultiAssets,
-		context: Option<&XcmContext>,
-		reason: FeeReason,
-	) -> MultiAssets {
 		let token_location = FeeAssetLocation::get();
 
 		// Check the reason to see if this export is for snowbridge.
 		if !matches!(
 			reason,
-			FeeReason::Export { network: bridged_network, destination }
+			FeeReason::Export { network: bridged_network, ref destination }
-				if bridged_network == EthereumNetwork::get() && destination == Here
+				if bridged_network == EthereumNetwork::get() && destination == &Here
 		) {
 			return fees
 		}
 
 		// Get the parachain sovereign from the `context`.
-		let para_sovereign = if let Some(XcmContext {
+		let para_sovereign =
-			origin: Some(MultiLocation { parents: 1, interior }),
+			if let Some(XcmContext { origin: Some(Location { parents: 1, interior }), .. }) =
-			..
+				context
-		}) = context
+			{
-		{
+				if let Some(Parachain(sibling_para_id)) = interior.first() {
-			if let Some(Parachain(sibling_para_id)) = interior.first() {
+					let account: AccountId =
-				let account: AccountId =
+						sibling_sovereign_account_raw((*sibling_para_id).into()).into();
-					sibling_sovereign_account_raw((*sibling_para_id).into()).into();
+					account
-				account
+				} else {
+					return fees
+				}
 			} else {
 				return fees
-			}
+			};
-		} else {
-			return fees
-		};
 
 		// Get the total fee offered by export message.
 		let maybe_total_supplied_fee: Option<(usize, Balance)> = fees
@@ -90,8 +85,8 @@ impl<Balance, AccountId, FeeAssetLocation, EthereumNetwork, AssetTransactor, Fee
 			.iter()
 			.enumerate()
 			.filter_map(|(index, asset)| {
-				if let MultiAsset { id: Concrete(location), fun: Fungible(amount) } = asset {
+				if let Asset { id: location, fun: Fungible(amount) } = asset {
-					if *location == token_location {
+					if location.0 == token_location {
 						return Some((index, (*amount).into()))
 					}
 				}
@@ -104,7 +99,7 @@ impl<Balance, AccountId, FeeAssetLocation, EthereumNetwork, AssetTransactor, Fee
 			if remote_fee > (0u128).into() {
 				// Refund remote component of fee to physical origin
 				deposit_or_burn_fee::<AssetTransactor, _>(
-					MultiAsset { id: Concrete(token_location), fun: Fungible(remote_fee.into()) }
+					Asset { id: AssetId(token_location.clone()), fun: Fungible(remote_fee.into()) }
 						.into(),
 					context,
 					para_sovereign,
@@ -112,8 +107,8 @@ impl<Balance, AccountId, FeeAssetLocation, EthereumNetwork, AssetTransactor, Fee
 				// Return remaining fee to the next fee handler in the chain.
 				let mut modified_fees = fees.inner().clone();
 				modified_fees.remove(fee_index);
-				modified_fees.push(MultiAsset {
+				modified_fees.push(Asset {
-					id: Concrete(token_location),
+					id: AssetId(token_location),
 					fun: Fungible((total_fee - remote_fee).into()),
 				});
 				return modified_fees.into()

bridges/snowbridge/parachain/runtime/test-common/src/lib.rs

@@ -49,38 +49,36 @@ where
 		+ snowbridge_pallet_outbound_queue::Config,
 	XcmConfig: xcm_executor::Config,
 {
-	let assethub_parachain_location = MultiLocation::new(1, Parachain(assethub_parachain_id));
+	let assethub_parachain_location = Location::new(1, Parachain(assethub_parachain_id));
-	let asset = MultiAsset {
+	let asset = Asset {
-		id: Concrete(MultiLocation {
+		id: AssetId(Location::new(
-			parents: 0,
+			0,
-			interior: X1(AccountKey20 { network: None, key: weth_contract_address.into() }),
+			[AccountKey20 { network: None, key: weth_contract_address.into() }],
-		}),
+		)),
 		fun: Fungible(1000000000),
 	};
 	let assets = vec![asset.clone()];
 
 	let inner_xcm = Xcm(vec![
-		WithdrawAsset(MultiAssets::from(assets.clone())),
+		WithdrawAsset(Assets::from(assets.clone())),
 		ClearOrigin,
 		BuyExecution { fees: asset, weight_limit: Unlimited },
 		DepositAsset {
 			assets: Wild(All),
-			beneficiary: MultiLocation {
+			beneficiary: Location::new(
-				parents: 0,
+				0,
-				interior: X1(AccountKey20 { network: None, key: destination_address.into() }),
+				[AccountKey20 { network: None, key: destination_address.into() }],
-			},
+			),
 		},
 		SetTopic([0; 32]),
 	]);
 
-	let fee = MultiAsset {
+	let fee =
-		id: Concrete(MultiLocation { parents: 1, interior: Here }),
+		Asset { id: AssetId(Location { parents: 1, interior: Here }), fun: Fungible(fee_amount) };
-		fun: Fungible(fee_amount),
-	};
 
 	// prepare transfer token message
 	let xcm = Xcm(vec![
-		WithdrawAsset(MultiAssets::from(vec![fee.clone()])),
+		WithdrawAsset(Assets::from(vec![fee.clone()])),
 		BuyExecution { fees: fee, weight_limit: Unlimited },
 		ExportMessage {
 			network: Ethereum { chain_id: 11155111 },
@@ -90,12 +88,13 @@ where
 	]);
 
 	// execute XCM
-	let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+	let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
-	XcmExecutor::<XcmConfig>::execute_xcm(
+	XcmExecutor::<XcmConfig>::prepare_and_execute(
 		assethub_parachain_location,
 		xcm,
-		hash,
+		&mut hash,
 		RuntimeHelper::<Runtime>::xcm_max_weight(XcmReceivedFrom::Sibling),
+		Weight::zero(),
 	)
 }
 
@@ -176,7 +175,7 @@ pub fn send_unpaid_transfer_token_message<Runtime, XcmConfig>(
 	XcmConfig: xcm_executor::Config,
 	ValidatorIdOf<Runtime>: From<AccountIdOf<Runtime>>,
 {
-	let assethub_parachain_location = MultiLocation::new(1, Parachain(assethub_parachain_id));
+	let assethub_parachain_location = Location::new(1, Parachain(assethub_parachain_id));
 
 	ExtBuilder::<Runtime>::default()
 		.with_collators(collator_session_key.collators())
@@ -194,28 +193,25 @@ pub fn send_unpaid_transfer_token_message<Runtime, XcmConfig>(
 			)
 			.unwrap();
 
-			let asset = MultiAsset {
+			let asset = Asset {
-				id: Concrete(MultiLocation {
+				id: AssetId(Location::new(
-					parents: 0,
+					0,
-					interior: X1(AccountKey20 { network: None, key: weth_contract_address.into() }),
+					[AccountKey20 { network: None, key: weth_contract_address.into() }],
-				}),
+				)),
 				fun: Fungible(1000000000),
 			};
 			let assets = vec![asset.clone()];
 
 			let inner_xcm = Xcm(vec![
-				WithdrawAsset(MultiAssets::from(assets.clone())),
+				WithdrawAsset(Assets::from(assets.clone())),
 				ClearOrigin,
 				BuyExecution { fees: asset, weight_limit: Unlimited },
 				DepositAsset {
 					assets: Wild(AllCounted(1)),
-					beneficiary: MultiLocation {
+					beneficiary: Location::new(
-						parents: 0,
+						0,
-						interior: X1(AccountKey20 {
+						[AccountKey20 { network: None, key: destination_contract.into() }],
-							network: None,
+					),
-							key: destination_contract.into(),
-						}),
-					},
 				},
 				SetTopic([0; 32]),
 			]);
@@ -231,12 +227,13 @@ pub fn send_unpaid_transfer_token_message<Runtime, XcmConfig>(
 			]);
 
 			// execute XCM
-			let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+			let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
-			let outcome = XcmExecutor::<XcmConfig>::execute_xcm(
+			let outcome = XcmExecutor::<XcmConfig>::prepare_and_execute(
 				assethub_parachain_location,
 				xcm,
-				hash,
+				&mut hash,
 				RuntimeHelper::<Runtime>::xcm_max_weight(XcmReceivedFrom::Sibling),
+				Weight::zero(),
 			);
 			// check error is barrier
 			assert_err!(outcome.ensure_complete(), Barrier);

cumulus/pallets/xcmp-queue/src/lib.rs

@@ -135,7 +135,7 @@ pub mod pallet {
 		/// The origin that is allowed to resume or suspend the XCMP queue.
 		type ControllerOrigin: EnsureOrigin<Self::RuntimeOrigin>;
 
-		/// The conversion function used to attempt to convert an XCM `MultiLocation` origin to a
+		/// The conversion function used to attempt to convert an XCM `Location` origin to a
 		/// superuser origin.
 		type ControllerOriginConverter: ConvertOrigin<Self::RuntimeOrigin>;
 
@@ -903,14 +903,14 @@ impl<T: Config> SendXcm for Pallet<T> {
 	type Ticket = (ParaId, VersionedXcm<()>);
 
 	fn validate(
-		dest: &mut Option<MultiLocation>,
+		dest: &mut Option<Location>,
 		msg: &mut Option<Xcm<()>>,
 	) -> SendResult<(ParaId, VersionedXcm<()>)> {
 		let d = dest.take().ok_or(SendError::MissingArgument)?;
 
-		match &d {
+		match d.unpack() {
 			// An HRMP message for a sibling parachain.
-			MultiLocation { parents: 1, interior: X1(Parachain(id)) } => {
+			(1, [Parachain(id)]) => {
 				let xcm = msg.take().ok_or(SendError::MissingArgument)?;
 				let id = ParaId::from(*id);
 				let price = T::PriceForSiblingDelivery::price_for_delivery(id, &xcm);

cumulus/pallets/xcmp-queue/src/mock.rs

@@ -124,8 +124,8 @@ impl cumulus_pallet_parachain_system::Config for Test {
 }
 
 parameter_types! {
-	pub const RelayChain: MultiLocation = MultiLocation::parent();
+	pub const RelayChain: Location = Location::parent();
-	pub UniversalLocation: InteriorMultiLocation = X1(Parachain(1u32));
+	pub UniversalLocation: InteriorLocation = [Parachain(1u32)].into();
 	pub UnitWeightCost: Weight = Weight::from_parts(1_000_000, 1024);
 	pub const MaxInstructions: u32 = 100;
 	pub const MaxAssetsIntoHolding: u32 = 64;
@@ -138,7 +138,7 @@ pub type LocalAssetTransactor = CurrencyAdapter<
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	IsConcrete<RelayChain>,
-	// Do a simple punn to convert an AccountId32 MultiLocation into a native chain account ID:
+	// Do a simple punn to convert an AccountId32 Location into a native chain account ID:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -187,17 +187,14 @@ impl<RuntimeOrigin: OriginTrait> ConvertOrigin<RuntimeOrigin>
 	for SystemParachainAsSuperuser<RuntimeOrigin>
 {
 	fn convert_origin(
-		origin: impl Into<MultiLocation>,
+		origin: impl Into<Location>,
 		kind: OriginKind,
-	) -> Result<RuntimeOrigin, MultiLocation> {
+	) -> Result<RuntimeOrigin, Location> {
 		let origin = origin.into();
 		if kind == OriginKind::Superuser &&
 			matches!(
-				origin,
+				origin.unpack(),
-				MultiLocation {
+				(1,	[Parachain(id)]) if ParaId::from(*id).is_system(),
-					parents: 1,
-					interior: X1(Parachain(id)),
-				} if ParaId::from(id).is_system(),
 			) {
 			Ok(RuntimeOrigin::root())
 		} else {
@@ -256,7 +253,7 @@ impl<T: OnQueueChanged<ParaId>> EnqueueMessage<ParaId> for EnqueueToLocalStorage
 
 parameter_types! {
 	/// The asset ID for the asset that we use to pay for message delivery fees.
-	pub FeeAssetId: AssetId = Concrete(RelayChain::get());
+	pub FeeAssetId: AssetId = AssetId(RelayChain::get());
 	/// The base fee for the message delivery fees.
 	pub const BaseDeliveryFee: Balance = 300_000_000;
 	/// The fee per byte

cumulus/pallets/xcmp-queue/src/tests.rs

@@ -333,11 +333,11 @@ struct OkFixedXcmHashWithAssertingRequiredInputsSender;
 impl OkFixedXcmHashWithAssertingRequiredInputsSender {
 	const FIXED_XCM_HASH: [u8; 32] = [9; 32];
 
-	fn fixed_delivery_asset() -> MultiAssets {
+	fn fixed_delivery_asset() -> Assets {
-		MultiAssets::new()
+		Assets::new()
 	}
 
-	fn expected_delivery_result() -> Result<(XcmHash, MultiAssets), SendError> {
+	fn expected_delivery_result() -> Result<(XcmHash, Assets), SendError> {
 		Ok((Self::FIXED_XCM_HASH, Self::fixed_delivery_asset()))
 	}
 }
@@ -345,7 +345,7 @@ impl SendXcm for OkFixedXcmHashWithAssertingRequiredInputsSender {
 	type Ticket = ();
 
 	fn validate(
-		destination: &mut Option<MultiLocation>,
+		destination: &mut Option<Location>,
 		message: &mut Option<Xcm<()>>,
 	) -> SendResult<Self::Ticket> {
 		assert!(destination.is_some());
@@ -392,8 +392,8 @@ fn xcmp_queue_consumes_dest_and_msg_on_ok_validate() {
 	let message = Xcm(vec![Trap(5)]);
 
 	// XcmpQueue - check dest/msg is valid
-	let dest = (Parent, X1(Parachain(5555)));
+	let dest: Location = (Parent, Parachain(5555)).into();
-	let mut dest_wrapper = Some(dest.into());
+	let mut dest_wrapper = Some(dest.clone());
 	let mut msg_wrapper = Some(message.clone());
 
 	new_test_ext().execute_with(|| {
@@ -416,7 +416,7 @@ fn xcmp_queue_consumes_dest_and_msg_on_ok_validate() {
 
 #[test]
 fn xcmp_queue_validate_nested_xcm_works() {
-	let dest = (Parent, X1(Parachain(5555)));
+	let dest = (Parent, Parachain(5555));
 	// Message that is not too deeply nested:
 	let mut good = Xcm(vec![ClearOrigin]);
 	for _ in 0..MAX_XCM_DECODE_DEPTH - 1 {
@@ -441,7 +441,7 @@ fn xcmp_queue_validate_nested_xcm_works() {
 
 #[test]
 fn send_xcm_nested_works() {
-	let dest = (Parent, X1(Parachain(HRMP_PARA_ID)));
+	let dest = (Parent, Parachain(HRMP_PARA_ID));
 	// Message that is not too deeply nested:
 	let mut good = Xcm(vec![ClearOrigin]);
 	for _ in 0..MAX_XCM_DECODE_DEPTH - 1 {
@@ -455,7 +455,7 @@ fn send_xcm_nested_works() {
 			XcmpQueue::take_outbound_messages(usize::MAX),
 			vec![(
 				HRMP_PARA_ID.into(),
-				(XcmpMessageFormat::ConcatenatedVersionedXcm, VersionedXcm::V3(good.clone()))
+				(XcmpMessageFormat::ConcatenatedVersionedXcm, VersionedXcm::V4(good.clone()))
 					.encode(),
 			)]
 		);
@@ -474,7 +474,7 @@ fn hrmp_signals_are_prioritized() {
 	let message = Xcm(vec![Trap(5)]);
 
 	let sibling_para_id = ParaId::from(12345);
-	let dest = (Parent, X1(Parachain(sibling_para_id.into())));
+	let dest = (Parent, Parachain(sibling_para_id.into()));
 	let mut dest_wrapper = Some(dest.into());
 	let mut msg_wrapper = Some(message.clone());
 
@@ -511,7 +511,7 @@ fn hrmp_signals_are_prioritized() {
 		// Without a signal we get the messages in order:
 		let mut expected_msg = XcmpMessageFormat::ConcatenatedVersionedXcm.encode();
 		for _ in 0..31 {
-			expected_msg.extend(VersionedXcm::V3(message.clone()).encode());
+			expected_msg.extend(VersionedXcm::V4(message.clone()).encode());
 		}
 
 		hypothetically!({
@@ -590,7 +590,7 @@ fn take_first_concatenated_xcm_good_recursion_depth_works() {
 	for _ in 0..MAX_XCM_DECODE_DEPTH - 1 {
 		good = Xcm(vec![SetAppendix(good)]);
 	}
-	let good = VersionedXcm::V3(good);
+	let good = VersionedXcm::V4(good);
 
 	let page = good.encode();
 	assert_ok!(XcmpQueue::take_first_concatenated_xcm(&mut &page[..], &mut WeightMeter::new()));
@@ -603,7 +603,7 @@ fn take_first_concatenated_xcm_good_bad_depth_errors() {
 	for _ in 0..MAX_XCM_DECODE_DEPTH {
 		bad = Xcm(vec![SetAppendix(bad)]);
 	}
-	let bad = VersionedXcm::V3(bad);
+	let bad = VersionedXcm::V4(bad);
 
 	let page = bad.encode();
 	assert_err!(
@@ -699,12 +699,12 @@ fn lazy_migration_noop_when_out_of_weight() {
 fn xcmp_queue_send_xcm_works() {
 	new_test_ext().execute_with(|| {
 		let sibling_para_id = ParaId::from(12345);
-		let dest = (Parent, X1(Parachain(sibling_para_id.into()))).into();
+		let dest: Location = (Parent, Parachain(sibling_para_id.into())).into();
 		let msg = Xcm(vec![ClearOrigin]);
 
 		// try to send without opened HRMP channel to the sibling_para_id
 		assert_eq!(
-			send_xcm::<XcmpQueue>(dest, msg.clone()),
+			send_xcm::<XcmpQueue>(dest.clone(), msg.clone()),
 			Err(SendError::Transport("NoChannel")),
 		);
 
@@ -728,7 +728,7 @@ fn xcmp_queue_send_xcm_works() {
 fn xcmp_queue_send_too_big_xcm_fails() {
 	new_test_ext().execute_with(|| {
 		let sibling_para_id = ParaId::from(12345);
-		let dest = (Parent, X1(Parachain(sibling_para_id.into()))).into();
+		let dest = (Parent, Parachain(sibling_para_id.into())).into();
 
 		let max_message_size = 100_u32;
 
@@ -774,7 +774,7 @@ fn verify_fee_factor_increase_and_decrease() {
 	use sp_runtime::FixedU128;
 
 	let sibling_para_id = ParaId::from(12345);
-	let destination = (Parent, Parachain(sibling_para_id.into())).into();
+	let destination: Location = (Parent, Parachain(sibling_para_id.into())).into();
 	let xcm = Xcm(vec![ClearOrigin; 100]);
 	let versioned_xcm = VersionedXcm::from(xcm.clone());
 	let mut xcmp_message = XcmpMessageFormat::ConcatenatedVersionedXcm.encode();
@@ -799,15 +799,15 @@ fn verify_fee_factor_increase_and_decrease() {
 
 		// Fee factor is only increased in `send_fragment`, which is called by `send_xcm`.
 		// When queue is not congested, fee factor doesn't change.
-		assert_ok!(send_xcm::<XcmpQueue>(destination, xcm.clone())); // Size 104
+		assert_ok!(send_xcm::<XcmpQueue>(destination.clone(), xcm.clone())); // Size 104
-		assert_ok!(send_xcm::<XcmpQueue>(destination, xcm.clone())); // Size 208
+		assert_ok!(send_xcm::<XcmpQueue>(destination.clone(), xcm.clone())); // Size 208
-		assert_ok!(send_xcm::<XcmpQueue>(destination, xcm.clone())); // Size 312
+		assert_ok!(send_xcm::<XcmpQueue>(destination.clone(), xcm.clone())); // Size 312
-		assert_ok!(send_xcm::<XcmpQueue>(destination, xcm.clone())); // Size 416
+		assert_ok!(send_xcm::<XcmpQueue>(destination.clone(), xcm.clone())); // Size 416
 		assert_eq!(DeliveryFeeFactor::<Test>::get(sibling_para_id), initial);
 
 		// Sending the message right now is cheap
-		let (_, delivery_fees) =
+		let (_, delivery_fees) = validate_send::<XcmpQueue>(destination.clone(), xcm.clone())
-			validate_send::<XcmpQueue>(destination, xcm.clone()).expect("message can be sent; qed");
+			.expect("message can be sent; qed");
 		let Fungible(delivery_fee_amount) = delivery_fees.inner()[0].fun else {
 			unreachable!("asset is fungible; qed");
 		};
@@ -817,18 +817,18 @@ fn verify_fee_factor_increase_and_decrease() {
 
 		// When we get to half of `max_total_size`, because `THRESHOLD_FACTOR` is 2,
 		// then the fee factor starts to increase.
-		assert_ok!(send_xcm::<XcmpQueue>(destination, xcm.clone())); // Size 520
+		assert_ok!(send_xcm::<XcmpQueue>(destination.clone(), xcm.clone())); // Size 520
 		assert_eq!(DeliveryFeeFactor::<Test>::get(sibling_para_id), FixedU128::from_float(1.05));
 
 		for _ in 0..12 {
 			// We finish at size 929
-			assert_ok!(send_xcm::<XcmpQueue>(destination, smaller_xcm.clone()));
+			assert_ok!(send_xcm::<XcmpQueue>(destination.clone(), smaller_xcm.clone()));
 		}
 		assert!(DeliveryFeeFactor::<Test>::get(sibling_para_id) > FixedU128::from_float(1.88));
 
 		// Sending the message right now is expensive
-		let (_, delivery_fees) =
+		let (_, delivery_fees) = validate_send::<XcmpQueue>(destination.clone(), xcm.clone())
-			validate_send::<XcmpQueue>(destination, xcm.clone()).expect("message can be sent; qed");
+			.expect("message can be sent; qed");
 		let Fungible(delivery_fee_amount) = delivery_fees.inner()[0].fun else {
 			unreachable!("asset is fungible; qed");
 		};

cumulus/parachain-template/runtime/src/xcm_config.rs

@@ -3,8 +3,8 @@ use super::{
 	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, WeightToFee, XcmpQueue,
 };
 use frame_support::{
-	match_types, parameter_types,
+	parameter_types,
-	traits::{ConstU32, Everything, Nothing},
+	traits::{ConstU32, Contains, Everything, Nothing},
 	weights::Weight,
 };
 use frame_system::EnsureRoot;
@@ -25,13 +25,13 @@ use xcm_builder::{
 use xcm_executor::XcmExecutor;
 
 parameter_types! {
-	pub const RelayLocation: MultiLocation = MultiLocation::parent();
+	pub const RelayLocation: Location = Location::parent();
 	pub const RelayNetwork: Option<NetworkId> = None;
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
-	pub UniversalLocation: InteriorMultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();
+	pub UniversalLocation: InteriorLocation = Parachain(ParachainInfo::parachain_id().into()).into();
 }
 
-/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
+/// Type for specifying how a `Location` can be converted into an `AccountId`. This is used
 /// when determining ownership of accounts for asset transacting and when attempting to use XCM
 /// `Transact` in order to determine the dispatch Origin.
 pub type LocationToAccountId = (
@@ -50,7 +50,7 @@ pub type LocalAssetTransactor = CurrencyAdapter<
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	IsConcrete<RelayLocation>,
-	// Do a simple punn to convert an AccountId32 MultiLocation into a native chain account ID:
+	// Do a simple punn to convert an AccountId32 Location into a native chain account ID:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -86,11 +86,11 @@ parameter_types! {
 	pub const MaxAssetsIntoHolding: u32 = 64;
 }
 
-match_types! {
+pub struct ParentOrParentsExecutivePlurality;
-	pub type ParentOrParentsExecutivePlurality: impl Contains<MultiLocation> = {
+impl Contains<Location> for ParentOrParentsExecutivePlurality {
-		MultiLocation { parents: 1, interior: Here } |
+	fn contains(location: &Location) -> bool {
-		MultiLocation { parents: 1, interior: X1(Plurality { id: BodyId::Executive, .. }) }
+		matches!(location.unpack(), (1, []) | (1, [Plurality { id: BodyId::Executive, .. }]))
-	};
+	}
 }
 
 pub type Barrier = TrailingSetTopicAsId<

cumulus/parachains/common/src/impls.rs

@@ -24,8 +24,8 @@ use pallet_asset_tx_payment::HandleCredit;
 use sp_runtime::traits::Zero;
 use sp_std::{marker::PhantomData, prelude::*};
 use xcm::latest::{
-	AssetId, Fungibility, Fungibility::Fungible, Junction, Junctions::Here, MultiAsset,
+	Asset, AssetId, Fungibility, Fungibility::Fungible, Junction, Junctions::Here, Location,
-	MultiLocation, Parent, WeightLimit,
+	Parent, WeightLimit,
 };
 use xcm_executor::traits::ConvertLocation;
 
@@ -113,11 +113,11 @@ where
 
 /// Asset filter that allows all assets from a certain location.
 pub struct AssetsFrom<T>(PhantomData<T>);
-impl<T: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation> for AssetsFrom<T> {
+impl<T: Get<Location>> ContainsPair<Asset, Location> for AssetsFrom<T> {
-	fn contains(asset: &MultiAsset, origin: &MultiLocation) -> bool {
+	fn contains(asset: &Asset, origin: &Location) -> bool {
 		let loc = T::get();
 		&loc == origin &&
-			matches!(asset, MultiAsset { id: AssetId::Concrete(asset_loc), fun: Fungible(_a) }
+			matches!(asset, Asset { id: AssetId(asset_loc), fun: Fungible(_a) }
 			if asset_loc.match_and_split(&loc).is_some())
 	}
 }
@@ -148,7 +148,7 @@ where
 			Err(amount) => amount,
 		};
 		let imbalance = amount.peek();
-		let root_location: MultiLocation = Here.into();
+		let root_location: Location = Here.into();
 		let root_account: AccountIdOf<T> =
 			match AccountIdConverter::convert_location(&root_location) {
 				Some(a) => a,
@@ -329,13 +329,13 @@ mod tests {
 	#[test]
 	fn assets_from_filters_correctly() {
 		parameter_types! {
-			pub SomeSiblingParachain: MultiLocation = MultiLocation::new(1, X1(Parachain(1234)));
+			pub SomeSiblingParachain: Location = (Parent, Parachain(1234)).into();
 		}
 
 		let asset_location = SomeSiblingParachain::get()
 			.pushed_with_interior(GeneralIndex(42))
-			.expect("multilocation will only have 2 junctions; qed");
+			.expect("location will only have 2 junctions; qed");
-		let asset = MultiAsset { id: Concrete(asset_location), fun: 1_000_000u128.into() };
+		let asset = Asset { id: AssetId(asset_location), fun: 1_000_000u128.into() };
 		assert!(
 			AssetsFrom::<SomeSiblingParachain>::contains(&asset, &SomeSiblingParachain::get()),
 			"AssetsFrom should allow assets from any of its interior locations"

cumulus/parachains/common/src/xcm_config.rs

@@ -66,37 +66,36 @@ where
 	}
 }
 
-/// Accepts an asset if it is a native asset from a particular `MultiLocation`.
+/// Accepts an asset if it is a native asset from a particular `Location`.
-pub struct ConcreteNativeAssetFrom<Location>(PhantomData<Location>);
+pub struct ConcreteNativeAssetFrom<LocationValue>(PhantomData<LocationValue>);
-impl<Location: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation>
+impl<LocationValue: Get<Location>> ContainsPair<Asset, Location>
-	for ConcreteNativeAssetFrom<Location>
+	for ConcreteNativeAssetFrom<LocationValue>
 {
-	fn contains(asset: &MultiAsset, origin: &MultiLocation) -> bool {
+	fn contains(asset: &Asset, origin: &Location) -> bool {
 		log::trace!(target: "xcm::filter_asset_location",
 			"ConcreteNativeAsset asset: {:?}, origin: {:?}, location: {:?}",
-			asset, origin, Location::get());
+			asset, origin, LocationValue::get());
-		matches!(asset.id, Concrete(ref id) if id == origin && origin == &Location::get())
+		asset.id.0 == *origin && origin == &LocationValue::get()
 	}
 }
 
 pub struct RelayOrOtherSystemParachains<
-	SystemParachainMatcher: Contains<MultiLocation>,
+	SystemParachainMatcher: Contains<Location>,
 	Runtime: parachain_info::Config,
 > {
 	_runtime: PhantomData<(SystemParachainMatcher, Runtime)>,
 }
-impl<SystemParachainMatcher: Contains<MultiLocation>, Runtime: parachain_info::Config>
+impl<SystemParachainMatcher: Contains<Location>, Runtime: parachain_info::Config> Contains<Location>
-	Contains<MultiLocation> for RelayOrOtherSystemParachains<SystemParachainMatcher, Runtime>
+	for RelayOrOtherSystemParachains<SystemParachainMatcher, Runtime>
 {
-	fn contains(l: &MultiLocation) -> bool {
+	fn contains(l: &Location) -> bool {
 		let self_para_id: u32 = parachain_info::Pallet::<Runtime>::get().into();
-		if let MultiLocation { parents: 0, interior: X1(Parachain(para_id)) } = l {
+		if let (0, [Parachain(para_id)]) = l.unpack() {
 			if *para_id == self_para_id {
 				return false
 			}
 		}
-		matches!(l, MultiLocation { parents: 1, interior: Here }) ||
+		matches!(l.unpack(), (1, [])) || SystemParachainMatcher::contains(l)
-			SystemParachainMatcher::contains(l)
 	}
 }
 
@@ -105,14 +104,12 @@ impl<SystemParachainMatcher: Contains<MultiLocation>, Runtime: parachain_info::C
 /// This structure can only be used at a parachain level. In the Relay Chain, please use
 /// the `xcm_builder::IsChildSystemParachain` matcher.
 pub struct AllSiblingSystemParachains;
-
+impl Contains<Location> for AllSiblingSystemParachains {
-impl Contains<MultiLocation> for AllSiblingSystemParachains {
+	fn contains(l: &Location) -> bool {
-	fn contains(l: &MultiLocation) -> bool {
 		log::trace!(target: "xcm::contains", "AllSiblingSystemParachains location: {:?}", l);
-		match *l {
+		match l.unpack() {
 			// System parachain
-			MultiLocation { parents: 1, interior: X1(Parachain(id)) } =>
+			(1, [Parachain(id)]) => ParaId::from(*id).is_system(),
-				ParaId::from(id).is_system(),
 			// Everything else
 			_ => false,
 		}
@@ -121,21 +118,20 @@ impl Contains<MultiLocation> for AllSiblingSystemParachains {
 
 /// Accepts an asset if it is a concrete asset from the system (Relay Chain or system parachain).
 pub struct ConcreteAssetFromSystem<AssetLocation>(PhantomData<AssetLocation>);
-impl<AssetLocation: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation>
+impl<AssetLocation: Get<Location>> ContainsPair<Asset, Location>
 	for ConcreteAssetFromSystem<AssetLocation>
 {
-	fn contains(asset: &MultiAsset, origin: &MultiLocation) -> bool {
+	fn contains(asset: &Asset, origin: &Location) -> bool {
 		log::trace!(target: "xcm::contains", "ConcreteAssetFromSystem asset: {:?}, origin: {:?}", asset, origin);
-		let is_system = match origin {
+		let is_system = match origin.unpack() {
 			// The Relay Chain
-			MultiLocation { parents: 1, interior: Here } => true,
+			(1, []) => true,
 			// System parachain
-			MultiLocation { parents: 1, interior: X1(Parachain(id)) } =>
+			(1, [Parachain(id)]) => ParaId::from(*id).is_system(),
-				ParaId::from(*id).is_system(),
 			// Others
 			_ => false,
 		};
-		matches!(asset.id, Concrete(id) if id == AssetLocation::get()) && is_system
+		asset.id.0 == AssetLocation::get() && is_system
 	}
 }
 
@@ -144,13 +140,9 @@ impl<AssetLocation: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation>
 /// This type should only be used within the context of a parachain, since it does not verify that
 /// the parent is indeed a Relay Chain.
 pub struct ParentRelayOrSiblingParachains;
-impl Contains<MultiLocation> for ParentRelayOrSiblingParachains {
+impl Contains<Location> for ParentRelayOrSiblingParachains {
-	fn contains(location: &MultiLocation) -> bool {
+	fn contains(location: &Location) -> bool {
-		matches!(
+		matches!(location.unpack(), (1, []) | (1, [Parachain(_)]))
-			location,
-			MultiLocation { parents: 1, interior: Here } |
-				MultiLocation { parents: 1, interior: X1(Parachain(_)) }
-		)
 	}
 }
 
@@ -159,20 +151,20 @@ mod tests {
 	use frame_support::{parameter_types, traits::Contains};
 
 	use super::{
-		AllSiblingSystemParachains, ConcreteAssetFromSystem, ContainsPair, GeneralIndex, Here,
+		AllSiblingSystemParachains, Asset, ConcreteAssetFromSystem, ContainsPair, GeneralIndex,
-		MultiAsset, MultiLocation, PalletInstance, Parachain, Parent,
+		Here, Location, PalletInstance, Parachain, Parent,
 	};
 	use polkadot_primitives::LOWEST_PUBLIC_ID;
 	use xcm::latest::prelude::*;
 
 	parameter_types! {
-		pub const RelayLocation: MultiLocation = MultiLocation::parent();
+		pub const RelayLocation: Location = Location::parent();
 	}
 
 	#[test]
 	fn concrete_asset_from_relay_works() {
-		let expected_asset: MultiAsset = (Parent, 1000000).into();
+		let expected_asset: Asset = (Parent, 1000000).into();
-		let expected_origin: MultiLocation = (Parent, Here).into();
+		let expected_origin: Location = (Parent, Here).into();
 
 		assert!(<ConcreteAssetFromSystem<RelayLocation>>::contains(
 			&expected_asset,
@@ -182,12 +174,12 @@ mod tests {
 
 	#[test]
 	fn concrete_asset_from_sibling_system_para_fails_for_wrong_asset() {
-		let unexpected_assets: Vec<MultiAsset> = vec![
+		let unexpected_assets: Vec<Asset> = vec![
 			(Here, 1000000).into(),
 			((PalletInstance(50), GeneralIndex(1)), 1000000).into(),
 			((Parent, Parachain(1000), PalletInstance(50), GeneralIndex(1)), 1000000).into(),
 		];
-		let expected_origin: MultiLocation = (Parent, Parachain(1000)).into();
+		let expected_origin: Location = (Parent, Parachain(1000)).into();
 
 		unexpected_assets.iter().for_each(|asset| {
 			assert!(!<ConcreteAssetFromSystem<RelayLocation>>::contains(asset, &expected_origin));
@@ -206,10 +198,10 @@ mod tests {
 			(2001, false), // Not a System Parachain
 		];
 
-		let expected_asset: MultiAsset = (Parent, 1000000).into();
+		let expected_asset: Asset = (Parent, 1000000).into();
 
 		for (para_id, expected_result) in test_data {
-			let origin: MultiLocation = (Parent, Parachain(para_id)).into();
+			let origin: Location = (Parent, Parachain(para_id)).into();
 			assert_eq!(
 				expected_result,
 				<ConcreteAssetFromSystem<RelayLocation>>::contains(&expected_asset, &origin)
@@ -220,15 +212,15 @@ mod tests {
 	#[test]
 	fn all_sibling_system_parachains_works() {
 		// system parachain
-		assert!(AllSiblingSystemParachains::contains(&MultiLocation::new(1, X1(Parachain(1)))));
+		assert!(AllSiblingSystemParachains::contains(&Location::new(1, [Parachain(1)])));
 		// non-system parachain
-		assert!(!AllSiblingSystemParachains::contains(&MultiLocation::new(
+		assert!(!AllSiblingSystemParachains::contains(&Location::new(
 			1,
-			X1(Parachain(LOWEST_PUBLIC_ID.into()))
+			[Parachain(LOWEST_PUBLIC_ID.into())]
 		)));
 		// when used at relay chain
-		assert!(!AllSiblingSystemParachains::contains(&MultiLocation::new(0, X1(Parachain(1)))));
+		assert!(!AllSiblingSystemParachains::contains(&Location::new(0, [Parachain(1)])));
 		// when used with non-parachain
-		assert!(!AllSiblingSystemParachains::contains(&MultiLocation::new(1, X1(OnlyChild))));
+		assert!(!AllSiblingSystemParachains::contains(&Location::new(1, [OnlyChild])));
 	}
 }

cumulus/parachains/integration-tests/emulated/chains/parachains/testing/penpal/src/lib.rs

@@ -15,7 +15,9 @@
 
 mod genesis;
 pub use genesis::{genesis, ED, PARA_ID_A, PARA_ID_B};
-pub use penpal_runtime::xcm_config::{LocalTeleportableToAssetHub, XcmConfig};
+pub use penpal_runtime::xcm_config::{
+	LocalTeleportableToAssetHub, LocalTeleportableToAssetHubV3, XcmConfig,
+};
 
 // Substrate
 use frame_support::traits::OnInitialize;

cumulus/parachains/integration-tests/emulated/common/src/impls.rs

@@ -38,8 +38,9 @@ pub use polkadot_runtime_parachains::{
 	inclusion::{AggregateMessageOrigin, UmpQueueId},
 };
 pub use xcm::{
-	prelude::{MultiLocation, OriginKind, Outcome, VersionedXcm, XcmVersion},
+	prelude::{Location, OriginKind, Outcome, VersionedXcm, XcmVersion},
-	v3::Error,
+	v3,
+	v4::Error as XcmError,
 	DoubleEncoded,
 };
 
@@ -209,7 +210,7 @@ macro_rules! impl_assert_events_helpers_for_relay_chain {
 						Self,
 						vec![
 							[<$chain RuntimeEvent>]::<N>::XcmPallet(
-								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Complete(weight) }
+								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Complete { used: weight } }
 							) => {
 								weight: $crate::impls::weight_within_threshold(
 									($crate::impls::REF_TIME_THRESHOLD, $crate::impls::PROOF_SIZE_THRESHOLD),
@@ -224,21 +225,21 @@ macro_rules! impl_assert_events_helpers_for_relay_chain {
 				/// Asserts a dispatchable is incompletely executed and XCM sent
 				pub fn assert_xcm_pallet_attempted_incomplete(
 					expected_weight: Option<$crate::impls::Weight>,
-					expected_error: Option<$crate::impls::Error>,
+					expected_error: Option<$crate::impls::XcmError>,
 				) {
 					$crate::impls::assert_expected_events!(
 						Self,
 						vec![
 							// Dispatchable is properly executed and XCM message sent
 							[<$chain RuntimeEvent>]::<N>::XcmPallet(
-								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Incomplete(weight, error) }
+								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Incomplete { used: weight, error } }
 							) => {
 								weight: $crate::impls::weight_within_threshold(
 									($crate::impls::REF_TIME_THRESHOLD, $crate::impls::PROOF_SIZE_THRESHOLD),
 									expected_weight.unwrap_or(*weight),
 									*weight
 								),
-								error: *error == expected_error.unwrap_or(*error),
+								error: *error == expected_error.unwrap_or((*error).into()).into(),
 							},
 						]
 					);
@@ -365,7 +366,7 @@ macro_rules! impl_send_transact_helpers_for_relay_chain {
 
 					<Self as $crate::impls::TestExt>::execute_with(|| {
 						let root_origin = <Self as Chain>::RuntimeOrigin::root();
-						let destination:  $crate::impls::MultiLocation = <Self as RelayChain>::child_location_of(recipient);
+						let destination:  $crate::impls::Location = <Self as RelayChain>::child_location_of(recipient);
 						let xcm = $crate::impls::xcm_transact_unpaid_execution(call, $crate::impls::OriginKind::Superuser);
 
 						// Send XCM `Transact`
@@ -416,13 +417,13 @@ macro_rules! impl_accounts_helpers_for_parachain {
 					network_id: $crate::impls::NetworkId,
 					para_id: $crate::impls::ParaId,
 				) -> $crate::impls::AccountId {
-					let remote_location = $crate::impls::MultiLocation {
+					let remote_location = $crate::impls::Location::new(
-						parents: 2,
+						2,
-						interior: $crate::impls::Junctions::X2(
+						[
 							$crate::impls::Junction::GlobalConsensus(network_id),
 							$crate::impls::Junction::Parachain(para_id.into()),
-						),
+						],
-					};
+					);
 					<Self as $crate::impls::TestExt>::execute_with(|| {
 						Self::sovereign_account_id_of(remote_location)
 					})
@@ -445,7 +446,7 @@ macro_rules! impl_assert_events_helpers_for_parachain {
 						Self,
 						vec![
 							[<$chain RuntimeEvent>]::<N>::PolkadotXcm(
-								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Complete(weight) }
+								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Complete { used: weight } }
 							) => {
 								weight: $crate::impls::weight_within_threshold(
 									($crate::impls::REF_TIME_THRESHOLD, $crate::impls::PROOF_SIZE_THRESHOLD),
@@ -460,36 +461,36 @@ macro_rules! impl_assert_events_helpers_for_parachain {
 				/// Asserts a dispatchable is incompletely executed and XCM sent
 				pub fn assert_xcm_pallet_attempted_incomplete(
 					expected_weight: Option<$crate::impls::Weight>,
-					expected_error: Option<$crate::impls::Error>,
+					expected_error: Option<$crate::impls::XcmError>,
 				) {
 					$crate::impls::assert_expected_events!(
 						Self,
 						vec![
 							// Dispatchable is properly executed and XCM message sent
 							[<$chain RuntimeEvent>]::<N>::PolkadotXcm(
-								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Incomplete(weight, error) }
+								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Incomplete { used: weight, error } }
 							) => {
 								weight: $crate::impls::weight_within_threshold(
 									($crate::impls::REF_TIME_THRESHOLD, $crate::impls::PROOF_SIZE_THRESHOLD),
 									expected_weight.unwrap_or(*weight),
 									*weight
 								),
-								error: *error == expected_error.unwrap_or(*error),
+								error: *error == expected_error.unwrap_or((*error).into()).into(),
 							},
 						]
 					);
 				}
 
 				/// Asserts a dispatchable throws and error when trying to be sent
-				pub fn assert_xcm_pallet_attempted_error(expected_error: Option<$crate::impls::Error>) {
+				pub fn assert_xcm_pallet_attempted_error(expected_error: Option<$crate::impls::XcmError>) {
 					$crate::impls::assert_expected_events!(
 						Self,
 						vec![
 							// Execution fails in the origin with `Barrier`
 							[<$chain RuntimeEvent>]::<N>::PolkadotXcm(
-								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Error(error) }
+								$crate::impls::pallet_xcm::Event::Attempted { outcome: $crate::impls::Outcome::Error { error } }
 							) => {
-								error: *error == expected_error.unwrap_or(*error),
+								error: *error == expected_error.unwrap_or((*error).into()).into(),
 							},
 						]
 					);
@@ -639,7 +640,7 @@ macro_rules! impl_assets_helpers_for_parachain {
 					<Self as $crate::impls::TestExt>::execute_with(|| {
 						$crate::impls::assert_ok!(<Self as [<$chain ParaPallet>]>::Assets::mint(
 							signed_origin,
-							id.into(),
+							id.clone().into(),
 							beneficiary.clone().into(),
 							amount_to_mint
 						));
@@ -717,7 +718,7 @@ macro_rules! impl_assets_helpers_for_parachain {
 							]
 						);
 
-						assert!(<Self as [<$chain ParaPallet>]>::Assets::asset_exists(id.into()));
+						assert!(<Self as [<$chain ParaPallet>]>::Assets::asset_exists(id.clone().into()));
 					});
 				}
 			}
@@ -732,7 +733,7 @@ macro_rules! impl_foreign_assets_helpers_for_parachain {
 			impl<N: $crate::impls::Network> $chain<N> {
 				/// Create foreign assets using sudo `ForeignAssets::force_create()`
 				pub fn force_create_foreign_asset(
-					id: $crate::impls::MultiLocation,
+					id: $crate::impls::v3::Location,
 					owner: $crate::impls::AccountId,
 					is_sufficient: bool,
 					min_balance: u128,
@@ -744,13 +745,13 @@ macro_rules! impl_foreign_assets_helpers_for_parachain {
 						$crate::impls::assert_ok!(
 							<Self as [<$chain ParaPallet>]>::ForeignAssets::force_create(
 								sudo_origin,
-								id,
+								id.clone(),
 								owner.clone().into(),
 								is_sufficient,
 								min_balance,
 							)
 						);
-						assert!(<Self as [<$chain ParaPallet>]>::ForeignAssets::asset_exists(id));
+						assert!(<Self as [<$chain ParaPallet>]>::ForeignAssets::asset_exists(id.clone()));
 						type RuntimeEvent<N> = <$chain<N> as $crate::impls::Chain>::RuntimeEvent;
 						$crate::impls::assert_expected_events!(
 							Self,
@@ -767,21 +768,21 @@ macro_rules! impl_foreign_assets_helpers_for_parachain {
 					for (beneficiary, amount) in prefund_accounts.into_iter() {
 						let signed_origin =
 							<$chain<N> as $crate::impls::Chain>::RuntimeOrigin::signed(owner.clone());
-						Self::mint_foreign_asset(signed_origin, id, beneficiary, amount);
+						Self::mint_foreign_asset(signed_origin, id.clone(), beneficiary, amount);
 					}
 				}
 
 				/// Mint assets making use of the ForeignAssets pallet-assets instance
 				pub fn mint_foreign_asset(
 					signed_origin: <Self as $crate::impls::Chain>::RuntimeOrigin,
-					id: $crate::impls::MultiLocation,
+					id: $crate::impls::v3::Location,
 					beneficiary: $crate::impls::AccountId,
 					amount_to_mint: u128,
 				) {
 					<Self as $crate::impls::TestExt>::execute_with(|| {
 						$crate::impls::assert_ok!(<Self as [<$chain ParaPallet>]>::ForeignAssets::mint(
 							signed_origin,
-							id.into(),
+							id.clone().into(),
 							beneficiary.clone().into(),
 							amount_to_mint
 						));
@@ -813,7 +814,7 @@ macro_rules! impl_xcm_helpers_for_parachain {
 		$crate::impls::paste::paste! {
 			impl<N: $crate::impls::Network> $chain<N> {
 				/// Set XCM version for destination.
-				pub fn force_xcm_version(dest: $crate::impls::MultiLocation, version: $crate::impls::XcmVersion) {
+				pub fn force_xcm_version(dest: $crate::impls::Location, version: $crate::impls::XcmVersion) {
 					<Self as $crate::impls::TestExt>::execute_with(|| {
 						$crate::impls::assert_ok!(<Self as [<$chain ParaPallet>]>::PolkadotXcm::force_xcm_version(
 							<Self as $crate::impls::Chain>::RuntimeOrigin::root(),

cumulus/parachains/integration-tests/emulated/common/src/lib.rs

@@ -40,6 +40,7 @@ use polkadot_service::chain_spec::get_authority_keys_from_seed_no_beefy;
 
 pub const XCM_V2: u32 = 2;
 pub const XCM_V3: u32 = 3;
+pub const XCM_V4: u32 = 4;
 pub const REF_TIME_THRESHOLD: u64 = 33;
 pub const PROOF_SIZE_THRESHOLD: u64 = 33;
 

cumulus/parachains/integration-tests/emulated/common/src/macros.rs

@@ -48,7 +48,7 @@ macro_rules! test_parachain_is_trusted_teleporter {
 						<$receiver_para as $crate::macros::Chain>::account_data_of(receiver.clone()).free;
 					let para_destination =
 						<$sender_para>::sibling_location_of(<$receiver_para>::para_id());
-					let beneficiary: MultiLocation =
+					let beneficiary: Location =
 						$crate::macros::AccountId32 { network: None, id: receiver.clone().into() }.into();
 
 					// Send XCM message from Origin Parachain
@@ -57,8 +57,8 @@ macro_rules! test_parachain_is_trusted_teleporter {
 					<$sender_para>::execute_with(|| {
 						assert_ok!(<$sender_para as [<$sender_para Pallet>]>::PolkadotXcm::limited_teleport_assets(
 							origin.clone(),
-							bx!(para_destination.into()),
+							bx!(para_destination.clone().into()),
-							bx!(beneficiary.into()),
+							bx!(beneficiary.clone().into()),
 							bx!($assets.clone().into()),
 							fee_asset_item,
 							weight_limit.clone(),
@@ -127,8 +127,8 @@ macro_rules! include_penpal_create_foreign_asset_on_asset_hub {
 		$crate::impls::paste::paste! {
 			pub fn penpal_create_foreign_asset_on_asset_hub(
 				asset_id_on_penpal: u32,
-				foreign_asset_at_asset_hub: MultiLocation,
+				foreign_asset_at_asset_hub: v3::Location,
-				ah_as_seen_by_penpal: MultiLocation,
+				ah_as_seen_by_penpal: Location,
 				is_sufficient: bool,
 				asset_owner: AccountId,
 				prefund_amount: u128,
@@ -144,14 +144,14 @@ macro_rules! include_penpal_create_foreign_asset_on_asset_hub {
 				// prefund SA of Penpal on AssetHub with enough native tokens to pay for creating
 				// new foreign asset, also prefund CheckingAccount with ED, because teleported asset
 				// itself might not be sufficient and CheckingAccount cannot be created otherwise
-				let sov_penpal_on_ah = $asset_hub::sovereign_account_id_of(penpal_as_seen_by_ah);
+				let sov_penpal_on_ah = $asset_hub::sovereign_account_id_of(penpal_as_seen_by_ah.clone());
 				$asset_hub::fund_accounts(vec![
 					(sov_penpal_on_ah.clone().into(), $relay_ed * 100_000_000_000),
 					(ah_check_account.clone().into(), $relay_ed * 1000),
 				]);
 
 				// prefund SA of AssetHub on Penpal with native asset
-				let sov_ah_on_penpal = $penpal::sovereign_account_id_of(ah_as_seen_by_penpal);
+				let sov_ah_on_penpal = $penpal::sovereign_account_id_of(ah_as_seen_by_penpal.clone());
 				$penpal::fund_accounts(vec![
 					(sov_ah_on_penpal.into(), $relay_ed * 1_000_000_000),
 					(penpal_check_account.clone().into(), $relay_ed * 1000),
@@ -183,8 +183,8 @@ macro_rules! include_penpal_create_foreign_asset_on_asset_hub {
 				let buy_execution_fee_amount = $weight_to_fee::weight_to_fee(
 					&Weight::from_parts(10_100_000_000_000, 300_000),
 				);
-				let buy_execution_fee = MultiAsset {
+				let buy_execution_fee = Asset {
-					id: Concrete(MultiLocation { parents: 1, interior: Here }),
+					id: AssetId(Location { parents: 1, interior: Here }),
 					fun: Fungible(buy_execution_fee_amount),
 				};
 				let xcm = VersionedXcm::from(Xcm(vec![

cumulus/parachains/integration-tests/emulated/common/src/xcm_helpers.rs

@@ -23,12 +23,12 @@ use xcm::{prelude::*, DoubleEncoded};
 pub fn xcm_transact_paid_execution(
 	call: DoubleEncoded<()>,
 	origin_kind: OriginKind,
-	native_asset: MultiAsset,
+	native_asset: Asset,
 	beneficiary: AccountId,
 ) -> VersionedXcm<()> {
 	let weight_limit = WeightLimit::Unlimited;
 	let require_weight_at_most = Weight::from_parts(1000000000, 200000);
-	let native_assets: MultiAssets = native_asset.clone().into();
+	let native_assets: Assets = native_asset.clone().into();
 
 	VersionedXcm::from(Xcm(vec![
 		WithdrawAsset(native_assets),
@@ -37,9 +37,9 @@ pub fn xcm_transact_paid_execution(
 		RefundSurplus,
 		DepositAsset {
 			assets: All.into(),
-			beneficiary: MultiLocation {
+			beneficiary: Location {
 				parents: 0,
-				interior: X1(AccountId32 { network: None, id: beneficiary.into() }),
+				interior: [AccountId32 { network: None, id: beneficiary.into() }].into(),
 			},
 		},
 	]))
@@ -61,15 +61,11 @@ pub fn xcm_transact_unpaid_execution(
 }
 
 /// Helper method to get the non-fee asset used in multiple assets transfer
-pub fn non_fee_asset(assets: &MultiAssets, fee_idx: usize) -> Option<(MultiLocation, u128)> {
+pub fn non_fee_asset(assets: &Assets, fee_idx: usize) -> Option<(Location, u128)> {
 	let asset = assets.inner().into_iter().enumerate().find(|a| a.0 != fee_idx)?.1.clone();
-	let asset_id = match asset.id {
-		Concrete(id) => id,
-		_ => return None,
-	};
 	let asset_amount = match asset.fun {
 		Fungible(amount) => amount,
 		_ => return None,
 	};
-	Some((asset_id, asset_amount))
+	Some((asset.id.0, asset_amount))
 }

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-rococo/src/lib.rs

@@ -26,7 +26,7 @@ pub use frame_support::{
 // Polkadot
 pub use xcm::{
 	prelude::{AccountId32 as AccountId32Junction, *},
-	v3::{Error, NetworkId::Rococo as RococoId},
+	v3::{self, Error, NetworkId::Rococo as RococoId},
 };
 
 // Cumulus

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-rococo/src/tests/reserve_transfer.rs

@@ -30,7 +30,7 @@ fn relay_to_para_sender_assertions(t: RelayToParaTest) {
 			) => {
 				from: *from == t.sender.account_id,
 				to: *to == Rococo::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
@@ -53,7 +53,7 @@ fn system_para_to_para_sender_assertions(t: SystemParaToParaTest) {
 			) => {
 				from: *from == t.sender.account_id,
 				to: *to == AssetHubRococo::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
@@ -130,7 +130,7 @@ fn system_para_to_para_assets_sender_assertions(t: SystemParaToParaTest) {
 				asset_id: *asset_id == ASSET_ID,
 				from: *from == t.sender.account_id,
 				to: *to == AssetHubRococo::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
@@ -190,10 +190,10 @@ fn para_to_system_para_reserve_transfer_assets(t: ParaToSystemParaTest) -> Dispa
 fn reserve_transfer_native_asset_from_relay_to_system_para_fails() {
 	let signed_origin = <Rococo as Chain>::RuntimeOrigin::signed(RococoSender::get().into());
 	let destination = Rococo::child_location_of(AssetHubRococo::para_id());
-	let beneficiary: MultiLocation =
+	let beneficiary: Location =
 		AccountId32Junction { network: None, id: AssetHubRococoReceiver::get().into() }.into();
 	let amount_to_send: Balance = ROCOCO_ED * 1000;
-	let assets: MultiAssets = (Here, amount_to_send).into();
+	let assets: Assets = (Here, amount_to_send).into();
 	let fee_asset_item = 0;
 
 	// this should fail
@@ -225,11 +225,11 @@ fn reserve_transfer_native_asset_from_system_para_to_relay_fails() {
 		<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get().into());
 	let destination = AssetHubRococo::parent_location();
 	let beneficiary_id = RococoReceiver::get();
-	let beneficiary: MultiLocation =
+	let beneficiary: Location =
 		AccountId32Junction { network: None, id: beneficiary_id.into() }.into();
 	let amount_to_send: Balance = ASSET_HUB_ROCOCO_ED * 1000;
 
-	let assets: MultiAssets = (Parent, amount_to_send).into();
+	let assets: Assets = (Parent, amount_to_send).into();
 	let fee_asset_item = 0;
 
 	// this should fail
@@ -418,9 +418,9 @@ fn reserve_transfer_assets_from_system_para_to_para() {
 	let beneficiary_id = PenpalAReceiver::get();
 	let fee_amount_to_send = ASSET_HUB_ROCOCO_ED * 1000;
 	let asset_amount_to_send = ASSET_MIN_BALANCE * 1000;
-	let assets: MultiAssets = vec![
+	let assets: Assets = vec![
 		(Parent, fee_amount_to_send).into(),
-		(X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())), asset_amount_to_send)
+		([PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())], asset_amount_to_send)
 			.into(),
 	]
 	.into();

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-rococo/src/tests/set_xcm_versions.rs

@@ -19,14 +19,13 @@ use crate::*;
 fn relay_sets_system_para_xcm_supported_version() {
 	// Init tests variables
 	let sudo_origin = <Rococo as Chain>::RuntimeOrigin::root();
-	let system_para_destination: MultiLocation =
+	let system_para_destination: Location = Rococo::child_location_of(AssetHubRococo::para_id());
-		Rococo::child_location_of(AssetHubRococo::para_id());
 
 	// Relay Chain sets supported version for Asset Parachain
 	Rococo::execute_with(|| {
 		assert_ok!(<Rococo as RococoPallet>::XcmPallet::force_xcm_version(
 			sudo_origin,
-			bx!(system_para_destination),
+			bx!(system_para_destination.clone()),
 			XCM_V3
 		));
 
@@ -52,7 +51,7 @@ fn system_para_sets_relay_xcm_supported_version() {
 		<AssetHubRococo as Chain>::RuntimeCall::PolkadotXcm(pallet_xcm::Call::<
 			<AssetHubRococo as Chain>::Runtime,
 		>::force_xcm_version {
-			location: bx!(parent_location),
+			location: bx!(parent_location.clone()),
 			version: XCM_V3,
 		})
 		.encode()

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-rococo/src/tests/swap.rs

@@ -15,16 +15,19 @@
 
 use crate::*;
 use parachains_common::rococo::currency::EXISTENTIAL_DEPOSIT;
-use rococo_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHub as PenpalLocalTeleportableToAssetHub;
+use rococo_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHubV3 as PenpalLocalTeleportableToAssetHubV3;
 use sp_runtime::ModuleError;
 
 #[test]
 fn swap_locally_on_chain_using_local_assets() {
-	let asset_native = asset_hub_rococo_runtime::xcm_config::TokenLocation::get();
+	let asset_native = Box::new(asset_hub_rococo_runtime::xcm_config::TokenLocationV3::get());
-	let asset_one = MultiLocation {
+	let asset_one = Box::new(v3::Location::new(
-		parents: 0,
+		0,
-		interior: X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())),
+		[
-	};
+			v3::Junction::PalletInstance(ASSETS_PALLET_ID),
+			v3::Junction::GeneralIndex(ASSET_ID.into()),
+		],
+	));
 
 	AssetHubRococo::execute_with(|| {
 		type RuntimeEvent = <AssetHubRococo as Chain>::RuntimeEvent;
@@ -46,8 +49,8 @@ fn swap_locally_on_chain_using_local_assets() {
 
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::create_pool(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get()),
-			Box::new(asset_native),
+			asset_native.clone(),
-			Box::new(asset_one),
+			asset_one.clone(),
 		));
 
 		assert_expected_events!(
@@ -59,8 +62,8 @@ fn swap_locally_on_chain_using_local_assets() {
 
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::add_liquidity(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get()),
-			Box::new(asset_native),
+			asset_native.clone(),
-			Box::new(asset_one),
+			asset_one.clone(),
 			1_000_000_000_000,
 			2_000_000_000_000,
 			0,
@@ -75,7 +78,7 @@ fn swap_locally_on_chain_using_local_assets() {
 			]
 		);
 
-		let path = vec![Box::new(asset_native), Box::new(asset_one)];
+		let path = vec![asset_native.clone(), asset_one.clone()];
 
 		assert_ok!(
 			<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::swap_exact_tokens_for_tokens(
@@ -100,8 +103,8 @@ fn swap_locally_on_chain_using_local_assets() {
 
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::remove_liquidity(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get()),
-			Box::new(asset_native),
+			asset_native,
-			Box::new(asset_one),
+			asset_one,
 			1414213562273 - EXISTENTIAL_DEPOSIT * 2, // all but the 2 EDs can't be retrieved.
 			0,
 			0,
@@ -112,16 +115,16 @@ fn swap_locally_on_chain_using_local_assets() {
 
 #[test]
 fn swap_locally_on_chain_using_foreign_assets() {
-	let asset_native = asset_hub_rococo_runtime::xcm_config::TokenLocation::get();
+	let asset_native = Box::new(asset_hub_rococo_runtime::xcm_config::TokenLocationV3::get());
 	let ah_as_seen_by_penpal = PenpalA::sibling_location_of(AssetHubRococo::para_id());
-	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHub::get();
+	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHubV3::get();
 	let asset_id_on_penpal = match asset_location_on_penpal.last() {
-		Some(GeneralIndex(id)) => *id as u32,
+		Some(v3::Junction::GeneralIndex(id)) => *id as u32,
 		_ => unreachable!(),
 	};
 	let asset_owner_on_penpal = PenpalASender::get();
 	let foreign_asset_at_asset_hub_rococo =
-		MultiLocation { parents: 1, interior: X1(Parachain(PenpalA::para_id().into())) }
+		v3::Location::new(1, [v3::Junction::Parachain(PenpalA::para_id().into())])
 			.appended_with(asset_location_on_penpal)
 			.unwrap();
 
@@ -167,7 +170,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		// 4. Create pool:
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::create_pool(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get()),
-			Box::new(asset_native),
+			asset_native.clone(),
 			Box::new(foreign_asset_at_asset_hub_rococo),
 		));
 
@@ -181,7 +184,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		// 5. Add liquidity:
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::add_liquidity(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(sov_penpal_on_ahr.clone()),
-			Box::new(asset_native),
+			asset_native.clone(),
 			Box::new(foreign_asset_at_asset_hub_rococo),
 			1_000_000_000_000,
 			2_000_000_000_000,
@@ -200,7 +203,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		);
 
 		// 6. Swap!
-		let path = vec![Box::new(asset_native), Box::new(foreign_asset_at_asset_hub_rococo)];
+		let path = vec![asset_native.clone(), Box::new(foreign_asset_at_asset_hub_rococo)];
 
 		assert_ok!(
 			<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::swap_exact_tokens_for_tokens(
@@ -226,7 +229,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		// 7. Remove liquidity
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::remove_liquidity(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(sov_penpal_on_ahr.clone()),
-			Box::new(asset_native),
+			asset_native.clone(),
 			Box::new(foreign_asset_at_asset_hub_rococo),
 			1414213562273 - 2_000_000_000, // all but the 2 EDs can't be retrieved.
 			0,
@@ -238,9 +241,11 @@ fn swap_locally_on_chain_using_foreign_assets() {
 
 #[test]
 fn cannot_create_pool_from_pool_assets() {
-	let asset_native = asset_hub_rococo_runtime::xcm_config::TokenLocation::get();
+	let asset_native = Box::new(asset_hub_rococo_runtime::xcm_config::TokenLocationV3::get());
-	let mut asset_one = asset_hub_rococo_runtime::xcm_config::PoolAssetsPalletLocation::get();
+	let mut asset_one = asset_hub_rococo_runtime::xcm_config::PoolAssetsPalletLocationV3::get();
-	asset_one.append_with(GeneralIndex(ASSET_ID.into())).expect("pool assets");
+	asset_one
+		.append_with(v3::Junction::GeneralIndex(ASSET_ID.into()))
+		.expect("pool assets");
 
 	AssetHubRococo::execute_with(|| {
 		let pool_owner_account_id = asset_hub_rococo_runtime::AssetConversionOrigin::get();
@@ -263,7 +268,7 @@ fn cannot_create_pool_from_pool_assets() {
 		assert_matches::assert_matches!(
 			<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::create_pool(
 				<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get()),
-				Box::new(asset_native),
+				asset_native,
 				Box::new(asset_one),
 			),
 			Err(DispatchError::Module(ModuleError{index: _, error: _, message})) => assert_eq!(message, Some("Unknown"))
@@ -273,10 +278,14 @@ fn cannot_create_pool_from_pool_assets() {
 
 #[test]
 fn pay_xcm_fee_with_some_asset_swapped_for_native() {
-	let asset_native = asset_hub_rococo_runtime::xcm_config::TokenLocation::get();
+	let asset_native = asset_hub_rococo_runtime::xcm_config::TokenLocationV3::get();
-	let asset_one = MultiLocation {
+	let asset_one = xcm::v3::Location {
 		parents: 0,
-		interior: X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())),
+		interior: [
+			xcm::v3::Junction::PalletInstance(ASSETS_PALLET_ID),
+			xcm::v3::Junction::GeneralIndex(ASSET_ID.into()),
+		]
+		.into(),
 	};
 	let penpal = AssetHubRococo::sovereign_account_id_of(AssetHubRococo::sibling_location_of(
 		PenpalA::para_id(),
@@ -365,8 +374,7 @@ fn pay_xcm_fee_with_some_asset_swapped_for_native() {
 		let penpal_root = <PenpalA as Chain>::RuntimeOrigin::root();
 		let fee_amount = 4_000_000_000_000u128;
 		let asset_one =
-			(X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())), fee_amount)
+			([PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())], fee_amount).into();
-				.into();
 		let asset_hub_location = PenpalA::sibling_location_of(AssetHubRococo::para_id()).into();
 		let xcm = xcm_transact_paid_execution(
 			call,

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-rococo/src/tests/teleport.rs

@@ -17,7 +17,7 @@ use crate::*;
 use asset_hub_rococo_runtime::xcm_config::XcmConfig as AssetHubRococoXcmConfig;
 use emulated_integration_tests_common::xcm_helpers::non_fee_asset;
 use rococo_runtime::xcm_config::XcmConfig as RococoXcmConfig;
-use rococo_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHub as PenpalLocalTeleportableToAssetHub;
+use rococo_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHubV3 as PenpalLocalTeleportableToAssetHubV3;
 
 fn relay_origin_assertions(t: RelayToSystemParaTest) {
 	type RuntimeEvent = <Rococo as Chain>::RuntimeEvent;
@@ -143,6 +143,7 @@ fn penpal_to_ah_foreign_assets_receiver_assertions(t: ParaToSystemParaTest) {
 	);
 	let (expected_foreign_asset_id, expected_foreign_asset_amount) =
 		non_fee_asset(&t.args.assets, t.args.fee_asset_item as usize).unwrap();
+	let expected_foreign_asset_id_v3: v3::Location = expected_foreign_asset_id.try_into().unwrap();
 	assert_expected_events!(
 		AssetHubRococo,
 		vec![
@@ -157,7 +158,7 @@ fn penpal_to_ah_foreign_assets_receiver_assertions(t: ParaToSystemParaTest) {
 				who: *who == t.receiver.account_id,
 			},
 			RuntimeEvent::ForeignAssets(pallet_assets::Event::Issued { asset_id, owner, amount }) => {
-				asset_id: *asset_id == expected_foreign_asset_id,
+				asset_id: *asset_id == expected_foreign_asset_id_v3,
 				owner: *owner == t.receiver.account_id,
 				amount: *amount == expected_foreign_asset_amount,
 			},
@@ -174,6 +175,7 @@ fn ah_to_penpal_foreign_assets_sender_assertions(t: SystemParaToParaTest) {
 	AssetHubRococo::assert_xcm_pallet_attempted_complete(None);
 	let (expected_foreign_asset_id, expected_foreign_asset_amount) =
 		non_fee_asset(&t.args.assets, t.args.fee_asset_item as usize).unwrap();
+	let expected_foreign_asset_id_v3: v3::Location = expected_foreign_asset_id.try_into().unwrap();
 	assert_expected_events!(
 		AssetHubRococo,
 		vec![
@@ -183,13 +185,13 @@ fn ah_to_penpal_foreign_assets_sender_assertions(t: SystemParaToParaTest) {
 			) => {
 				from: *from == t.sender.account_id,
 				to: *to == AssetHubRococo::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
 			// foreign asset is burned locally as part of teleportation
 			RuntimeEvent::ForeignAssets(pallet_assets::Event::Burned { asset_id, owner, balance }) => {
-				asset_id: *asset_id == expected_foreign_asset_id,
+				asset_id: *asset_id == expected_foreign_asset_id_v3,
 				owner: *owner == t.sender.account_id,
 				balance: *balance == expected_foreign_asset_amount,
 			},
@@ -542,7 +544,7 @@ fn teleport_native_assets_from_system_para_to_relay_fails() {
 #[test]
 fn teleport_to_other_system_parachains_works() {
 	let amount = ASSET_HUB_ROCOCO_ED * 100;
-	let native_asset: MultiAssets = (Parent, amount).into();
+	let native_asset: Assets = (Parent, amount).into();
 
 	test_parachain_is_trusted_teleporter!(
 		AssetHubRococo,          // Origin
@@ -557,20 +559,20 @@ fn teleport_to_other_system_parachains_works() {
 #[test]
 fn bidirectional_teleport_foreign_assets_between_para_and_asset_hub() {
 	let ah_as_seen_by_penpal = PenpalA::sibling_location_of(AssetHubRococo::para_id());
-	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHub::get();
+	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHubV3::get();
 	let asset_id_on_penpal = match asset_location_on_penpal.last() {
-		Some(GeneralIndex(id)) => *id as u32,
+		Some(v3::Junction::GeneralIndex(id)) => *id as u32,
 		_ => unreachable!(),
 	};
 	let asset_owner_on_penpal = PenpalASender::get();
 	let foreign_asset_at_asset_hub_rococo =
-		MultiLocation { parents: 1, interior: X1(Parachain(PenpalA::para_id().into())) }
+		v3::Location::new(1, [v3::Junction::Parachain(PenpalA::para_id().into())])
 			.appended_with(asset_location_on_penpal)
 			.unwrap();
 	super::penpal_create_foreign_asset_on_asset_hub(
 		asset_id_on_penpal,
 		foreign_asset_at_asset_hub_rococo,
-		ah_as_seen_by_penpal,
+		ah_as_seen_by_penpal.clone(),
 		false,
 		asset_owner_on_penpal,
 		ASSET_MIN_BALANCE * 1_000_000,
@@ -580,9 +582,10 @@ fn bidirectional_teleport_foreign_assets_between_para_and_asset_hub() {
 	let fee_amount_to_send = ASSET_HUB_ROCOCO_ED * 10_000;
 	let asset_amount_to_send = ASSET_MIN_BALANCE * 1000;
 
-	let penpal_assets: MultiAssets = vec![
+	let asset_location_on_penpal_latest: Location = asset_location_on_penpal.try_into().unwrap();
+	let penpal_assets: Assets = vec![
 		(Parent, fee_amount_to_send).into(),
-		(asset_location_on_penpal, asset_amount_to_send).into(),
+		(asset_location_on_penpal_latest, asset_amount_to_send).into(),
 	]
 	.into();
 	let fee_asset_index = penpal_assets
@@ -670,11 +673,13 @@ fn bidirectional_teleport_foreign_assets_between_para_and_asset_hub() {
 		));
 	});
 
+	let foreign_asset_at_asset_hub_rococo_latest: Location =
+		foreign_asset_at_asset_hub_rococo.try_into().unwrap();
 	let ah_to_penpal_beneficiary_id = PenpalAReceiver::get();
 	let penpal_as_seen_by_ah = AssetHubRococo::sibling_location_of(PenpalA::para_id());
-	let ah_assets: MultiAssets = vec![
+	let ah_assets: Assets = vec![
 		(Parent, fee_amount_to_send).into(),
-		(foreign_asset_at_asset_hub_rococo, asset_amount_to_send).into(),
+		(foreign_asset_at_asset_hub_rococo_latest, asset_amount_to_send).into(),
 	]
 	.into();
 	let fee_asset_index = ah_assets

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/lib.rs

@@ -28,7 +28,7 @@ pub use frame_support::{
 // Polkadot
 pub use xcm::{
 	prelude::{AccountId32 as AccountId32Junction, *},
-	v3::{Error, NetworkId::Westend as WestendId},
+	v3::{self, Error, NetworkId::Westend as WestendId},
 };
 
 // Cumulus

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/fellowship_treasury.rs

@@ -24,22 +24,20 @@ fn create_and_claim_treasury_spend() {
 	const ASSET_ID: u32 = 1984;
 	const SPEND_AMOUNT: u128 = 1_000_000;
 	// treasury location from a sibling parachain.
-	let treasury_location: MultiLocation = MultiLocation::new(
+	let treasury_location: Location =
-		1,
+		Location::new(1, [Parachain(CollectivesWestend::para_id().into()), PalletInstance(65)]);
-		X2(Parachain(CollectivesWestend::para_id().into()), PalletInstance(65)),
-	);
 	// treasury account on a sibling parachain.
 	let treasury_account =
 		asset_hub_westend_runtime::xcm_config::LocationToAccountId::convert_location(
 			&treasury_location,
 		)
 		.unwrap();
-	let asset_hub_location = MultiLocation::new(1, Parachain(AssetHubWestend::para_id().into()));
+	let asset_hub_location = Location::new(1, [Parachain(AssetHubWestend::para_id().into())]);
 	let root = <CollectivesWestend as Chain>::RuntimeOrigin::root();
 	// asset kind to be spent from the treasury.
-	let asset_kind = VersionedLocatableAsset::V3 {
+	let asset_kind = VersionedLocatableAsset::V4 {
 		location: asset_hub_location,
-		asset_id: AssetId::Concrete((PalletInstance(50), GeneralIndex(ASSET_ID.into())).into()),
+		asset_id: AssetId((PalletInstance(50), GeneralIndex(ASSET_ID.into())).into()),
 	};
 	// treasury spend beneficiary.
 	let alice: AccountId = Westend::account_id_of(ALICE);
@@ -75,7 +73,7 @@ fn create_and_claim_treasury_spend() {
 			root,
 			Box::new(asset_kind),
 			SPEND_AMOUNT,
-			Box::new(MultiLocation::new(0, Into::<[u8; 32]>::into(alice.clone())).into()),
+			Box::new(Location::new(0, Into::<[u8; 32]>::into(alice.clone())).into()),
 			None,
 		));
 		// claim the spend.

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/reserve_transfer.rs

@@ -32,7 +32,7 @@ fn relay_to_para_sender_assertions(t: RelayToParaTest) {
 			) => {
 				from: *from == t.sender.account_id,
 				to: *to == Westend::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
@@ -57,7 +57,7 @@ fn system_para_to_para_sender_assertions(t: SystemParaToParaTest) {
 			) => {
 				from: *from == t.sender.account_id,
 				to: *to == AssetHubWestend::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
@@ -140,7 +140,7 @@ fn system_para_to_para_assets_sender_assertions(t: SystemParaToParaTest) {
 				asset_id: *asset_id == ASSET_ID,
 				from: *from == t.sender.account_id,
 				to: *to == AssetHubWestend::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
@@ -200,10 +200,10 @@ fn para_to_system_para_reserve_transfer_assets(t: ParaToSystemParaTest) -> Dispa
 fn reserve_transfer_native_asset_from_relay_to_system_para_fails() {
 	let signed_origin = <Westend as Chain>::RuntimeOrigin::signed(WestendSender::get().into());
 	let destination = Westend::child_location_of(AssetHubWestend::para_id());
-	let beneficiary: MultiLocation =
+	let beneficiary: Location =
 		AccountId32Junction { network: None, id: AssetHubWestendReceiver::get().into() }.into();
 	let amount_to_send: Balance = WESTEND_ED * 1000;
-	let assets: MultiAssets = (Here, amount_to_send).into();
+	let assets: Assets = (Here, amount_to_send).into();
 	let fee_asset_item = 0;
 
 	// this should fail
@@ -235,10 +235,10 @@ fn reserve_transfer_native_asset_from_system_para_to_relay_fails() {
 		<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get().into());
 	let destination = AssetHubWestend::parent_location();
 	let beneficiary_id = WestendReceiver::get();
-	let beneficiary: MultiLocation =
+	let beneficiary: Location =
 		AccountId32Junction { network: None, id: beneficiary_id.into() }.into();
 	let amount_to_send: Balance = ASSET_HUB_WESTEND_ED * 1000;
-	let assets: MultiAssets = (Parent, amount_to_send).into();
+	let assets: Assets = (Parent, amount_to_send).into();
 	let fee_asset_item = 0;
 
 	// this should fail
@@ -428,9 +428,9 @@ fn reserve_transfer_assets_from_system_para_to_para() {
 	let beneficiary_id = PenpalBReceiver::get();
 	let fee_amount_to_send = ASSET_HUB_WESTEND_ED * 1000;
 	let asset_amount_to_send = ASSET_MIN_BALANCE * 1000;
-	let assets: MultiAssets = vec![
+	let assets: Assets = vec![
 		(Parent, fee_amount_to_send).into(),
-		(X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())), asset_amount_to_send)
+		([PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())], asset_amount_to_send)
 			.into(),
 	]
 	.into();

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/set_xcm_versions.rs

@@ -19,14 +19,13 @@ use crate::*;
 fn relay_sets_system_para_xcm_supported_version() {
 	// Init tests variables
 	let sudo_origin = <Westend as Chain>::RuntimeOrigin::root();
-	let system_para_destination: MultiLocation =
+	let system_para_destination: Location = Westend::child_location_of(AssetHubWestend::para_id());
-		Westend::child_location_of(AssetHubWestend::para_id());
 
 	// Relay Chain sets supported version for Asset Parachain
 	Westend::execute_with(|| {
 		assert_ok!(<Westend as WestendPallet>::XcmPallet::force_xcm_version(
 			sudo_origin,
-			bx!(system_para_destination),
+			bx!(system_para_destination.clone()),
 			XCM_V3
 		));
 
@@ -52,7 +51,7 @@ fn system_para_sets_relay_xcm_supported_version() {
 		<AssetHubWestend as Chain>::RuntimeCall::PolkadotXcm(pallet_xcm::Call::<
 			<AssetHubWestend as Chain>::Runtime,
 		>::force_xcm_version {
-			location: bx!(parent_location),
+			location: bx!(parent_location.clone()),
 			version: XCM_V3,
 		})
 		.encode()

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/swap.rs

@@ -14,15 +14,19 @@
 // limitations under the License.
 
 use crate::*;
-use westend_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHub as PenpalLocalTeleportableToAssetHub;
+use westend_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHubV3 as PenpalLocalTeleportableToAssetHubV3;
 
 #[test]
 fn swap_locally_on_chain_using_local_assets() {
-	let asset_native = asset_hub_westend_runtime::xcm_config::WestendLocation::get();
+	let asset_native = Box::new(asset_hub_westend_runtime::xcm_config::WestendLocationV3::get());
-	let asset_one = MultiLocation {
+	let asset_one = Box::new(v3::Location {
 		parents: 0,
-		interior: X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())),
+		interior: [
-	};
+			v3::Junction::PalletInstance(ASSETS_PALLET_ID),
+			v3::Junction::GeneralIndex(ASSET_ID.into()),
+		]
+		.into(),
+	});
 
 	AssetHubWestend::execute_with(|| {
 		type RuntimeEvent = <AssetHubWestend as Chain>::RuntimeEvent;
@@ -44,8 +48,8 @@ fn swap_locally_on_chain_using_local_assets() {
 
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::create_pool(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
-			Box::new(asset_native),
+			asset_native.clone(),
-			Box::new(asset_one),
+			asset_one.clone(),
 		));
 
 		assert_expected_events!(
@@ -57,8 +61,8 @@ fn swap_locally_on_chain_using_local_assets() {
 
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::add_liquidity(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
-			Box::new(asset_native),
+			asset_native.clone(),
-			Box::new(asset_one),
+			asset_one.clone(),
 			1_000_000_000_000,
 			2_000_000_000_000,
 			0,
@@ -73,7 +77,7 @@ fn swap_locally_on_chain_using_local_assets() {
 			]
 		);
 
-		let path = vec![Box::new(asset_native), Box::new(asset_one)];
+		let path = vec![asset_native.clone(), asset_one.clone()];
 
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::swap_exact_tokens_for_tokens(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
@@ -96,8 +100,8 @@ fn swap_locally_on_chain_using_local_assets() {
 
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::remove_liquidity(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
-			Box::new(asset_native),
+			asset_native.clone(),
-			Box::new(asset_one),
+			asset_one.clone(),
 			1414213562273 - 2_000_000_000, // all but the 2 EDs can't be retrieved.
 			0,
 			0,
@@ -108,16 +112,16 @@ fn swap_locally_on_chain_using_local_assets() {
 
 #[test]
 fn swap_locally_on_chain_using_foreign_assets() {
-	let asset_native = asset_hub_westend_runtime::xcm_config::WestendLocation::get();
+	let asset_native = Box::new(asset_hub_westend_runtime::xcm_config::WestendLocationV3::get());
 	let ah_as_seen_by_penpal = PenpalB::sibling_location_of(AssetHubWestend::para_id());
-	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHub::get();
+	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHubV3::get();
 	let asset_id_on_penpal = match asset_location_on_penpal.last() {
-		Some(GeneralIndex(id)) => *id as u32,
+		Some(v3::Junction::GeneralIndex(id)) => *id as u32,
 		_ => unreachable!(),
 	};
 	let asset_owner_on_penpal = PenpalBSender::get();
 	let foreign_asset_at_asset_hub_westend =
-		MultiLocation { parents: 1, interior: X1(Parachain(PenpalB::para_id().into())) }
+		v3::Location::new(1, [v3::Junction::Parachain(PenpalB::para_id().into())])
 			.appended_with(asset_location_on_penpal)
 			.unwrap();
 
@@ -163,7 +167,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		// 4. Create pool:
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::create_pool(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
-			Box::new(asset_native),
+			asset_native.clone(),
 			Box::new(foreign_asset_at_asset_hub_westend),
 		));
 
@@ -177,7 +181,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		// 5. Add liquidity:
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::add_liquidity(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(sov_penpal_on_ahw.clone()),
-			Box::new(asset_native),
+			asset_native.clone(),
 			Box::new(foreign_asset_at_asset_hub_westend),
 			1_000_000_000_000,
 			2_000_000_000_000,
@@ -196,7 +200,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		);
 
 		// 6. Swap!
-		let path = vec![Box::new(asset_native), Box::new(foreign_asset_at_asset_hub_westend)];
+		let path = vec![asset_native.clone(), Box::new(foreign_asset_at_asset_hub_westend)];
 
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::swap_exact_tokens_for_tokens(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
@@ -220,7 +224,7 @@ fn swap_locally_on_chain_using_foreign_assets() {
 		// 7. Remove liquidity
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::remove_liquidity(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(sov_penpal_on_ahw.clone()),
-			Box::new(asset_native),
+			asset_native.clone(),
 			Box::new(foreign_asset_at_asset_hub_westend),
 			1414213562273 - 2_000_000_000, // all but the 2 EDs can't be retrieved.
 			0,
@@ -232,9 +236,11 @@ fn swap_locally_on_chain_using_foreign_assets() {
 
 #[test]
 fn cannot_create_pool_from_pool_assets() {
-	let asset_native = asset_hub_westend_runtime::xcm_config::WestendLocation::get();
+	let asset_native = Box::new(asset_hub_westend_runtime::xcm_config::WestendLocationV3::get());
-	let mut asset_one = asset_hub_westend_runtime::xcm_config::PoolAssetsPalletLocation::get();
+	let mut asset_one = asset_hub_westend_runtime::xcm_config::PoolAssetsPalletLocationV3::get();
-	asset_one.append_with(GeneralIndex(ASSET_ID.into())).expect("pool assets");
+	asset_one
+		.append_with(v3::Junction::GeneralIndex(ASSET_ID.into()))
+		.expect("pool assets");
 
 	AssetHubWestend::execute_with(|| {
 		let pool_owner_account_id = asset_hub_westend_runtime::AssetConversionOrigin::get();
@@ -257,7 +263,7 @@ fn cannot_create_pool_from_pool_assets() {
 		assert_matches::assert_matches!(
 			<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::create_pool(
 				<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
-				Box::new(asset_native),
+				asset_native,
 				Box::new(asset_one),
 			),
 			Err(DispatchError::Module(ModuleError{index: _, error: _, message})) => assert_eq!(message, Some("Unknown"))
@@ -267,10 +273,14 @@ fn cannot_create_pool_from_pool_assets() {
 
 #[test]
 fn pay_xcm_fee_with_some_asset_swapped_for_native() {
-	let asset_native = asset_hub_westend_runtime::xcm_config::WestendLocation::get();
+	let asset_native = asset_hub_westend_runtime::xcm_config::WestendLocationV3::get();
-	let asset_one = MultiLocation {
+	let asset_one = xcm::v3::Location {
 		parents: 0,
-		interior: X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())),
+		interior: [
+			xcm::v3::Junction::PalletInstance(ASSETS_PALLET_ID),
+			xcm::v3::Junction::GeneralIndex(ASSET_ID.into()),
+		]
+		.into(),
 	};
 	let penpal = AssetHubWestend::sovereign_account_id_of(AssetHubWestend::sibling_location_of(
 		PenpalB::para_id(),
@@ -359,8 +369,7 @@ fn pay_xcm_fee_with_some_asset_swapped_for_native() {
 		let penpal_root = <PenpalB as Chain>::RuntimeOrigin::root();
 		let fee_amount = 4_000_000_000_000u128;
 		let asset_one =
-			(X2(PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())), fee_amount)
+			([PalletInstance(ASSETS_PALLET_ID), GeneralIndex(ASSET_ID.into())], fee_amount).into();
-				.into();
 		let asset_hub_location = PenpalB::sibling_location_of(AssetHubWestend::para_id()).into();
 		let xcm = xcm_transact_paid_execution(
 			call,

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/teleport.rs

@@ -17,7 +17,7 @@ use crate::*;
 use asset_hub_westend_runtime::xcm_config::XcmConfig as AssetHubWestendXcmConfig;
 use emulated_integration_tests_common::xcm_helpers::non_fee_asset;
 use westend_runtime::xcm_config::XcmConfig as WestendXcmConfig;
-use westend_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHub as PenpalLocalTeleportableToAssetHub;
+use westend_system_emulated_network::penpal_emulated_chain::LocalTeleportableToAssetHubV3 as PenpalLocalTeleportableToAssetHubV3;
 
 fn relay_origin_assertions(t: RelayToSystemParaTest) {
 	type RuntimeEvent = <Westend as Chain>::RuntimeEvent;
@@ -143,6 +143,7 @@ fn penpal_to_ah_foreign_assets_receiver_assertions(t: ParaToSystemParaTest) {
 	);
 	let (expected_foreign_asset_id, expected_foreign_asset_amount) =
 		non_fee_asset(&t.args.assets, t.args.fee_asset_item as usize).unwrap();
+	let expected_foreign_asset_id_v3: v3::Location = expected_foreign_asset_id.try_into().unwrap();
 	assert_expected_events!(
 		AssetHubWestend,
 		vec![
@@ -157,7 +158,7 @@ fn penpal_to_ah_foreign_assets_receiver_assertions(t: ParaToSystemParaTest) {
 				who: *who == t.receiver.account_id,
 			},
 			RuntimeEvent::ForeignAssets(pallet_assets::Event::Issued { asset_id, owner, amount }) => {
-				asset_id: *asset_id == expected_foreign_asset_id,
+				asset_id: *asset_id == expected_foreign_asset_id_v3,
 				owner: *owner == t.receiver.account_id,
 				amount: *amount == expected_foreign_asset_amount,
 			},
@@ -174,6 +175,7 @@ fn ah_to_penpal_foreign_assets_sender_assertions(t: SystemParaToParaTest) {
 	AssetHubWestend::assert_xcm_pallet_attempted_complete(None);
 	let (expected_foreign_asset_id, expected_foreign_asset_amount) =
 		non_fee_asset(&t.args.assets, t.args.fee_asset_item as usize).unwrap();
+	let expected_foreign_asset_id_v3: v3::Location = expected_foreign_asset_id.try_into().unwrap();
 	assert_expected_events!(
 		AssetHubWestend,
 		vec![
@@ -183,13 +185,13 @@ fn ah_to_penpal_foreign_assets_sender_assertions(t: SystemParaToParaTest) {
 			) => {
 				from: *from == t.sender.account_id,
 				to: *to == AssetHubWestend::sovereign_account_id_of(
-					t.args.dest
+					t.args.dest.clone()
 				),
 				amount: *amount == t.args.amount,
 			},
 			// foreign asset is burned locally as part of teleportation
 			RuntimeEvent::ForeignAssets(pallet_assets::Event::Burned { asset_id, owner, balance }) => {
-				asset_id: *asset_id == expected_foreign_asset_id,
+				asset_id: *asset_id == expected_foreign_asset_id_v3,
 				owner: *owner == t.sender.account_id,
 				balance: *balance == expected_foreign_asset_amount,
 			},
@@ -542,7 +544,7 @@ fn teleport_native_assets_from_system_para_to_relay_fails() {
 #[test]
 fn teleport_to_other_system_parachains_works() {
 	let amount = ASSET_HUB_WESTEND_ED * 100;
-	let native_asset: MultiAssets = (Parent, amount).into();
+	let native_asset: Assets = (Parent, amount).into();
 
 	test_parachain_is_trusted_teleporter!(
 		AssetHubWestend,          // Origin
@@ -557,20 +559,20 @@ fn teleport_to_other_system_parachains_works() {
 #[test]
 fn bidirectional_teleport_foreign_assets_between_para_and_asset_hub() {
 	let ah_as_seen_by_penpal = PenpalB::sibling_location_of(AssetHubWestend::para_id());
-	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHub::get();
+	let asset_location_on_penpal = PenpalLocalTeleportableToAssetHubV3::get();
 	let asset_id_on_penpal = match asset_location_on_penpal.last() {
-		Some(GeneralIndex(id)) => *id as u32,
+		Some(v3::Junction::GeneralIndex(id)) => *id as u32,
 		_ => unreachable!(),
 	};
 	let asset_owner_on_penpal = PenpalBSender::get();
 	let foreign_asset_at_asset_hub_westend =
-		MultiLocation { parents: 1, interior: X1(Parachain(PenpalB::para_id().into())) }
+		v3::Location::new(1, [v3::Junction::Parachain(PenpalB::para_id().into())])
 			.appended_with(asset_location_on_penpal)
 			.unwrap();
 	super::penpal_create_foreign_asset_on_asset_hub(
 		asset_id_on_penpal,
 		foreign_asset_at_asset_hub_westend,
-		ah_as_seen_by_penpal,
+		ah_as_seen_by_penpal.clone(),
 		false,
 		asset_owner_on_penpal,
 		ASSET_MIN_BALANCE * 1_000_000,
@@ -580,9 +582,10 @@ fn bidirectional_teleport_foreign_assets_between_para_and_asset_hub() {
 	let fee_amount_to_send = ASSET_HUB_WESTEND_ED * 1000;
 	let asset_amount_to_send = ASSET_MIN_BALANCE * 1000;
 
-	let penpal_assets: MultiAssets = vec![
+	let asset_location_on_penpal_latest: Location = asset_location_on_penpal.try_into().unwrap();
+	let penpal_assets: Assets = vec![
 		(Parent, fee_amount_to_send).into(),
-		(asset_location_on_penpal, asset_amount_to_send).into(),
+		(asset_location_on_penpal_latest, asset_amount_to_send).into(),
 	]
 	.into();
 	let fee_asset_index = penpal_assets
@@ -670,11 +673,13 @@ fn bidirectional_teleport_foreign_assets_between_para_and_asset_hub() {
 		));
 	});
 
+	let foreign_asset_at_asset_hub_westend_latest: Location =
+		foreign_asset_at_asset_hub_westend.try_into().unwrap();
 	let ah_to_penpal_beneficiary_id = PenpalBReceiver::get();
 	let penpal_as_seen_by_ah = AssetHubWestend::sibling_location_of(PenpalB::para_id());
-	let ah_assets: MultiAssets = vec![
+	let ah_assets: Assets = vec![
 		(Parent, fee_amount_to_send).into(),
-		(foreign_asset_at_asset_hub_westend, asset_amount_to_send).into(),
+		(foreign_asset_at_asset_hub_westend_latest, asset_amount_to_send).into(),
 	]
 	.into();
 	let fee_asset_index = ah_assets

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/treasury.rs

@@ -24,19 +24,19 @@ fn create_and_claim_treasury_spend() {
 	const ASSET_ID: u32 = 1984;
 	const SPEND_AMOUNT: u128 = 1_000_000;
 	// treasury location from a sibling parachain.
-	let treasury_location: MultiLocation = MultiLocation::new(1, PalletInstance(37));
+	let treasury_location: Location = Location::new(1, PalletInstance(37));
 	// treasury account on a sibling parachain.
 	let treasury_account =
 		asset_hub_westend_runtime::xcm_config::LocationToAccountId::convert_location(
 			&treasury_location,
 		)
 		.unwrap();
-	let asset_hub_location = MultiLocation::new(0, Parachain(AssetHubWestend::para_id().into()));
+	let asset_hub_location = Location::new(0, Parachain(AssetHubWestend::para_id().into()));
 	let root = <Westend as Chain>::RuntimeOrigin::root();
 	// asset kind to be spend from the treasury.
-	let asset_kind = VersionedLocatableAsset::V3 {
+	let asset_kind = VersionedLocatableAsset::V4 {
 		location: asset_hub_location,
-		asset_id: AssetId::Concrete((PalletInstance(50), GeneralIndex(ASSET_ID.into())).into()),
+		asset_id: AssetId([PalletInstance(50), GeneralIndex(ASSET_ID.into())].into()),
 	};
 	// treasury spend beneficiary.
 	let alice: AccountId = Westend::account_id_of(ALICE);
@@ -71,7 +71,7 @@ fn create_and_claim_treasury_spend() {
 			root,
 			Box::new(asset_kind),
 			SPEND_AMOUNT,
-			Box::new(MultiLocation::new(0, Into::<[u8; 32]>::into(alice.clone())).into()),
+			Box::new(Location::new(0, Into::<[u8; 32]>::into(alice.clone())).into()),
 			None,
 		));
 		// claim the spend.

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-rococo/src/lib.rs

@@ -22,7 +22,7 @@ pub use xcm::{
 	latest::ParentThen,
 	prelude::{AccountId32 as AccountId32Junction, *},
 	v3::{
-		Error,
+		self, Error,
 		NetworkId::{Rococo as RococoId, Westend as WestendId},
 	},
 };

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-rococo/src/tests/asset_transfers.rs

@@ -15,14 +15,14 @@
 
 use crate::tests::*;
 
-fn send_asset_from_asset_hub_rococo_to_asset_hub_westend(id: MultiLocation, amount: u128) {
+fn send_asset_from_asset_hub_rococo_to_asset_hub_westend(id: Location, amount: u128) {
 	let destination = asset_hub_westend_location();
 
 	// fund the AHR's SA on BHR for paying bridge transport fees
 	BridgeHubRococo::fund_para_sovereign(AssetHubRococo::para_id(), 10_000_000_000_000u128);
 
 	// set XCM versions
-	AssetHubRococo::force_xcm_version(destination, XCM_VERSION);
+	AssetHubRococo::force_xcm_version(destination.clone(), XCM_VERSION);
 	BridgeHubRococo::force_xcm_version(bridge_hub_westend_location(), XCM_VERSION);
 
 	// send message over bridge
@@ -33,9 +33,9 @@ fn send_asset_from_asset_hub_rococo_to_asset_hub_westend(id: MultiLocation, amou
 
 #[test]
 fn send_rocs_from_asset_hub_rococo_to_asset_hub_westend() {
-	let roc_at_asset_hub_rococo: MultiLocation = Parent.into();
+	let roc_at_asset_hub_rococo: v3::Location = v3::Parent.into();
 	let roc_at_asset_hub_westend =
-		MultiLocation { parents: 2, interior: X1(GlobalConsensus(NetworkId::Rococo)) };
+		v3::Location::new(2, [v3::Junction::GlobalConsensus(v3::NetworkId::Rococo)]);
 	let owner: AccountId = AssetHubWestend::account_id_of(ALICE);
 	AssetHubWestend::force_create_foreign_asset(
 		roc_at_asset_hub_westend,
@@ -62,7 +62,7 @@ fn send_rocs_from_asset_hub_rococo_to_asset_hub_westend() {
 
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::create_pool(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
-			Box::new(Parent.into()),
+			Box::new(xcm::v3::Parent.into()),
 			Box::new(roc_at_asset_hub_westend),
 		));
 
@@ -75,7 +75,7 @@ fn send_rocs_from_asset_hub_rococo_to_asset_hub_westend() {
 
 		assert_ok!(<AssetHubWestend as AssetHubWestendPallet>::AssetConversion::add_liquidity(
 			<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get()),
-			Box::new(Parent.into()),
+			Box::new(xcm::v3::Parent.into()),
 			Box::new(roc_at_asset_hub_westend),
 			1_000_000_000_000,
 			2_000_000_000_000,
@@ -101,8 +101,9 @@ fn send_rocs_from_asset_hub_rococo_to_asset_hub_westend() {
 		<Assets as Inspect<_>>::balance(roc_at_asset_hub_westend, &AssetHubWestendReceiver::get())
 	});
 
+	let roc_at_asset_hub_rococo_latest: Location = roc_at_asset_hub_rococo.try_into().unwrap();
 	let amount = ASSET_HUB_ROCOCO_ED * 1_000_000;
-	send_asset_from_asset_hub_rococo_to_asset_hub_westend(roc_at_asset_hub_rococo, amount);
+	send_asset_from_asset_hub_rococo_to_asset_hub_westend(roc_at_asset_hub_rococo_latest, amount);
 	AssetHubWestend::execute_with(|| {
 		type RuntimeEvent = <AssetHubWestend as Chain>::RuntimeEvent;
 		assert_expected_events!(
@@ -142,7 +143,7 @@ fn send_rocs_from_asset_hub_rococo_to_asset_hub_westend() {
 fn send_wnds_from_asset_hub_rococo_to_asset_hub_westend() {
 	let prefund_amount = 10_000_000_000_000u128;
 	let wnd_at_asset_hub_rococo =
-		MultiLocation { parents: 2, interior: X1(GlobalConsensus(NetworkId::Westend)) };
+		v3::Location::new(2, [v3::Junction::GlobalConsensus(v3::NetworkId::Westend)]);
 	let owner: AccountId = AssetHubWestend::account_id_of(ALICE);
 	AssetHubRococo::force_create_foreign_asset(
 		wnd_at_asset_hub_rococo,
@@ -170,8 +171,12 @@ fn send_wnds_from_asset_hub_rococo_to_asset_hub_westend() {
 	let receiver_wnds_before =
 		<AssetHubWestend as Chain>::account_data_of(AssetHubWestendReceiver::get()).free;
 
+	let wnd_at_asset_hub_rococo_latest: Location = wnd_at_asset_hub_rococo.try_into().unwrap();
 	let amount_to_send = ASSET_HUB_WESTEND_ED * 1_000;
-	send_asset_from_asset_hub_rococo_to_asset_hub_westend(wnd_at_asset_hub_rococo, amount_to_send);
+	send_asset_from_asset_hub_rococo_to_asset_hub_westend(
+		wnd_at_asset_hub_rococo_latest.clone(),
+		amount_to_send,
+	);
 	AssetHubWestend::execute_with(|| {
 		type RuntimeEvent = <AssetHubWestend as Chain>::RuntimeEvent;
 		assert_expected_events!(

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-rococo/src/tests/mod.rs

@@ -20,37 +20,31 @@ mod send_xcm;
 mod snowbridge;
 mod teleport;
 
-pub(crate) fn asset_hub_westend_location() -> MultiLocation {
+pub(crate) fn asset_hub_westend_location() -> Location {
-	MultiLocation {
+	Location::new(
-		parents: 2,
+		2,
-		interior: X2(
+		[GlobalConsensus(NetworkId::Westend), Parachain(AssetHubWestend::para_id().into())],
-			GlobalConsensus(NetworkId::Westend),
+	)
-			Parachain(AssetHubWestend::para_id().into()),
-		),
-	}
 }
 
-pub(crate) fn bridge_hub_westend_location() -> MultiLocation {
+pub(crate) fn bridge_hub_westend_location() -> Location {
-	MultiLocation {
+	Location::new(
-		parents: 2,
+		2,
-		interior: X2(
+		[GlobalConsensus(NetworkId::Westend), Parachain(BridgeHubWestend::para_id().into())],
-			GlobalConsensus(NetworkId::Westend),
+	)
-			Parachain(BridgeHubWestend::para_id().into()),
-		),
-	}
 }
 
 pub(crate) fn send_asset_from_asset_hub_rococo(
-	destination: MultiLocation,
+	destination: Location,
-	(id, amount): (MultiLocation, u128),
+	(id, amount): (Location, u128),
 ) -> DispatchResult {
 	let signed_origin =
 		<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get().into());
 
-	let beneficiary: MultiLocation =
+	let beneficiary: Location =
 		AccountId32Junction { network: None, id: AssetHubWestendReceiver::get().into() }.into();
 
-	let assets: MultiAssets = (id, amount).into();
+	let assets: Assets = (id, amount).into();
 	let fee_asset_item = 0;
 
 	AssetHubRococo::execute_with(|| {

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-rococo/src/tests/send_xcm.rs

@@ -29,8 +29,8 @@ fn send_xcm_from_rococo_relay_to_westend_asset_hub_should_fail_on_not_applicable
 	let xcm = VersionedXcm::from(Xcm(vec![
 		UnpaidExecution { weight_limit, check_origin },
 		ExportMessage {
-			network: WestendId,
+			network: WestendId.into(),
-			destination: X1(Parachain(AssetHubWestend::para_id().into())),
+			destination: [Parachain(AssetHubWestend::para_id().into())].into(),
 			xcm: remote_xcm,
 		},
 	]));
@@ -68,7 +68,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 
 	// prepare data
 	let destination = asset_hub_westend_location();
-	let native_token = MultiLocation::parent();
+	let native_token = Location::parent();
 	let amount = ASSET_HUB_ROCOCO_ED * 1_000;
 
 	// fund the AHR's SA on BHR for paying bridge transport fees
@@ -78,7 +78,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 
 	// send XCM from AssetHubRococo - fails - destination version not known
 	assert_err!(
-		send_asset_from_asset_hub_rococo(destination, (native_token, amount)),
+		send_asset_from_asset_hub_rococo(destination.clone(), (native_token.clone(), amount)),
 		DispatchError::Module(sp_runtime::ModuleError {
 			index: 31,
 			error: [1, 0, 0, 0],
@@ -87,7 +87,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 	);
 
 	// set destination version
-	AssetHubRococo::force_xcm_version(destination, xcm::v3::prelude::XCM_VERSION);
+	AssetHubRococo::force_xcm_version(destination.clone(), xcm::v3::prelude::XCM_VERSION);
 
 	// TODO: remove this block, when removing `xcm:v2`
 	{
@@ -95,7 +95,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 		// version, which does not have the `ExportMessage` instruction. If the default `2` is
 		// changed to `3`, then this assert can go away"
 		assert_err!(
-			send_asset_from_asset_hub_rococo(destination, (native_token, amount)),
+			send_asset_from_asset_hub_rococo(destination.clone(), (native_token.clone(), amount)),
 			DispatchError::Module(sp_runtime::ModuleError {
 				index: 31,
 				error: [1, 0, 0, 0],
@@ -110,7 +110,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 		);
 		// send XCM from AssetHubRococo - fails - `ExportMessage` is not in `2`
 		assert_err!(
-			send_asset_from_asset_hub_rococo(destination, (native_token, amount)),
+			send_asset_from_asset_hub_rococo(destination.clone(), (native_token.clone(), amount)),
 			DispatchError::Module(sp_runtime::ModuleError {
 				index: 31,
 				error: [1, 0, 0, 0],
@@ -125,7 +125,10 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 		xcm::v3::prelude::XCM_VERSION,
 	);
 	// send XCM from AssetHubRococo - ok
-	assert_ok!(send_asset_from_asset_hub_rococo(destination, (native_token, amount)));
+	assert_ok!(send_asset_from_asset_hub_rococo(
+		destination.clone(),
+		(native_token.clone(), amount)
+	));
 
 	// `ExportMessage` on local BridgeHub - fails - remote BridgeHub version not known
 	assert_bridge_hub_rococo_message_accepted(false);
@@ -142,7 +145,10 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 	);
 
 	// send XCM from AssetHubRococo - ok
-	assert_ok!(send_asset_from_asset_hub_rococo(destination, (native_token, amount)));
+	assert_ok!(send_asset_from_asset_hub_rococo(
+		destination.clone(),
+		(native_token.clone(), amount)
+	));
 	assert_bridge_hub_rococo_message_accepted(true);
 	assert_bridge_hub_westend_message_received();
 	// message delivered and processed at destination

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-rococo/src/tests/snowbridge.rs

@@ -61,7 +61,7 @@ fn create_agent() {
 
 	let remote_xcm = VersionedXcm::from(Xcm(vec![
 		UnpaidExecution { weight_limit: Unlimited, check_origin: None },
-		DescendOrigin(X1(Parachain(origin_para))),
+		DescendOrigin(Parachain(origin_para).into()),
 		Transact {
 			require_weight_at_most: 3000000000.into(),
 			origin_kind: OriginKind::Xcm,
@@ -109,14 +109,14 @@ fn create_channel() {
 	BridgeHubRococo::fund_para_sovereign(origin_para.into(), INITIAL_FUND);
 
 	let sudo_origin = <Rococo as Chain>::RuntimeOrigin::root();
-	let destination: VersionedMultiLocation =
+	let destination: VersionedLocation =
 		Rococo::child_location_of(BridgeHubRococo::para_id()).into();
 
 	let create_agent_call = SnowbridgeControl::Control(ControlCall::CreateAgent {});
 
 	let create_agent_xcm = VersionedXcm::from(Xcm(vec![
 		UnpaidExecution { weight_limit: Unlimited, check_origin: None },
-		DescendOrigin(X1(Parachain(origin_para))),
+		DescendOrigin(Parachain(origin_para).into()),
 		Transact {
 			require_weight_at_most: 3000000000.into(),
 			origin_kind: OriginKind::Xcm,
@@ -129,7 +129,7 @@ fn create_channel() {
 
 	let create_channel_xcm = VersionedXcm::from(Xcm(vec![
 		UnpaidExecution { weight_limit: Unlimited, check_origin: None },
-		DescendOrigin(X1(Parachain(origin_para))),
+		DescendOrigin(Parachain(origin_para).into()),
 		Transact {
 			require_weight_at_most: 3000000000.into(),
 			origin_kind: OriginKind::Xcm,
@@ -218,10 +218,10 @@ fn register_weth_token_from_ethereum_to_asset_hub() {
 
 #[test]
 fn send_token_from_ethereum_to_penpal() {
-	let asset_hub_sovereign = BridgeHubRococo::sovereign_account_id_of(MultiLocation {
+	let asset_hub_sovereign = BridgeHubRococo::sovereign_account_id_of(Location::new(
-		parents: 1,
+		1,
-		interior: X1(Parachain(AssetHubRococo::para_id().into())),
+		[Parachain(AssetHubRococo::para_id().into())],
-	});
+	));
 	BridgeHubRococo::fund_accounts(vec![(asset_hub_sovereign.clone(), INITIAL_FUND)]);
 
 	PenpalA::fund_accounts(vec![
@@ -229,9 +229,9 @@ fn send_token_from_ethereum_to_penpal() {
 		(PenpalASender::get(), INITIAL_FUND),
 	]);
 
-	let weth_asset_location: MultiLocation =
+	let weth_asset_location: Location =
 		(Parent, Parent, EthereumNetwork::get(), AccountKey20 { network: None, key: WETH }).into();
-	let weth_asset_id = weth_asset_location.into();
+	let weth_asset_id: v3::Location = weth_asset_location.try_into().unwrap();
 
 	let origin_location = (Parent, Parent, EthereumNetwork::get()).into();
 
@@ -375,18 +375,15 @@ fn send_token_from_ethereum_to_asset_hub() {
 #[test]
 fn send_weth_asset_from_asset_hub_to_ethereum() {
 	use asset_hub_rococo_runtime::xcm_config::bridging::to_ethereum::DefaultBridgeHubEthereumBaseFee;
-	let assethub_sovereign = BridgeHubRococo::sovereign_account_id_of(MultiLocation {
+	let assethub_sovereign = BridgeHubRococo::sovereign_account_id_of(Location::new(
-		parents: 1,
+		1,
-		interior: X1(Parachain(AssetHubRococo::para_id().into())),
+		[Parachain(AssetHubRococo::para_id().into())],
-	});
+	));
 
 	AssetHubRococo::force_default_xcm_version(Some(XCM_VERSION));
 	BridgeHubRococo::force_default_xcm_version(Some(XCM_VERSION));
 	AssetHubRococo::force_xcm_version(
-		MultiLocation {
+		Location::new(2, [GlobalConsensus(Ethereum { chain_id: CHAIN_ID })]),
-			parents: 2,
-			interior: X1(GlobalConsensus(Ethereum { chain_id: CHAIN_ID })),
-		},
 		XCM_VERSION,
 	);
 
@@ -437,27 +434,27 @@ fn send_weth_asset_from_asset_hub_to_ethereum() {
 				RuntimeEvent::ForeignAssets(pallet_assets::Event::Issued { .. }) => {},
 			]
 		);
-		let assets = vec![MultiAsset {
+		let assets = vec![Asset {
-			id: Concrete(MultiLocation {
+			id: AssetId(Location::new(
-				parents: 2,
+				2,
-				interior: X2(
+				[
 					GlobalConsensus(Ethereum { chain_id: CHAIN_ID }),
 					AccountKey20 { network: None, key: WETH },
-				),
+				],
-			}),
+			)),
 			fun: Fungible(WETH_AMOUNT),
 		}];
-		let multi_assets = VersionedMultiAssets::V3(MultiAssets::from(assets));
+		let multi_assets = VersionedAssets::V4(Assets::from(assets));
 
-		let destination = VersionedMultiLocation::V3(MultiLocation {
+		let destination = VersionedLocation::V4(Location::new(
-			parents: 2,
+			2,
-			interior: X1(GlobalConsensus(Ethereum { chain_id: CHAIN_ID })),
+			[GlobalConsensus(Ethereum { chain_id: CHAIN_ID })],
-		});
+		));
 
-		let beneficiary = VersionedMultiLocation::V3(MultiLocation {
+		let beneficiary = VersionedLocation::V4(Location::new(
-			parents: 0,
+			0,
-			interior: X1(AccountKey20 { network: None, key: ETHEREUM_DESTINATION_ADDRESS.into() }),
+			[AccountKey20 { network: None, key: ETHEREUM_DESTINATION_ADDRESS.into() }],
-		});
+		));
 
 		let free_balance_before = <AssetHubRococo as AssetHubRococoPallet>::Balances::free_balance(
 			AssetHubRococoReceiver::get(),

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-rococo/src/tests/teleport.rs

@@ -19,7 +19,7 @@ use bridge_hub_rococo_runtime::xcm_config::XcmConfig;
 #[test]
 fn teleport_to_other_system_parachains_works() {
 	let amount = BRIDGE_HUB_ROCOCO_ED * 100;
-	let native_asset: MultiAssets = (Parent, amount).into();
+	let native_asset: Assets = (Parent, amount).into();
 
 	test_parachain_is_trusted_teleporter!(
 		BridgeHubRococo,      // Origin

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-westend/src/lib.rs

@@ -21,7 +21,8 @@ pub use sp_runtime::DispatchError;
 pub use xcm::{
 	latest::ParentThen,
 	prelude::{AccountId32 as AccountId32Junction, *},
-	v3::{
+	v3,
+	v4::{
 		Error,
 		NetworkId::{Rococo as RococoId, Westend as WestendId},
 	},

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-westend/src/tests/asset_transfers.rs

@@ -14,14 +14,14 @@
 // limitations under the License.
 use crate::tests::*;
 
-fn send_asset_from_asset_hub_westend_to_asset_hub_rococo(id: MultiLocation, amount: u128) {
+fn send_asset_from_asset_hub_westend_to_asset_hub_rococo(id: Location, amount: u128) {
 	let destination = asset_hub_rococo_location();
 
 	// fund the AHW's SA on BHW for paying bridge transport fees
 	BridgeHubWestend::fund_para_sovereign(AssetHubWestend::para_id(), 10_000_000_000_000u128);
 
 	// set XCM versions
-	AssetHubWestend::force_xcm_version(destination, XCM_VERSION);
+	AssetHubWestend::force_xcm_version(destination.clone(), XCM_VERSION);
 	BridgeHubWestend::force_xcm_version(bridge_hub_rococo_location(), XCM_VERSION);
 
 	// send message over bridge
@@ -32,9 +32,9 @@ fn send_asset_from_asset_hub_westend_to_asset_hub_rococo(id: MultiLocation, amou
 
 #[test]
 fn send_wnds_from_asset_hub_westend_to_asset_hub_rococo() {
-	let wnd_at_asset_hub_westend: MultiLocation = Parent.into();
+	let wnd_at_asset_hub_westend: Location = Parent.into();
 	let wnd_at_asset_hub_rococo =
-		MultiLocation { parents: 2, interior: X1(GlobalConsensus(NetworkId::Westend)) };
+		v3::Location::new(2, [v3::Junction::GlobalConsensus(v3::NetworkId::Westend)]);
 	let owner: AccountId = AssetHubRococo::account_id_of(ALICE);
 	AssetHubRococo::force_create_foreign_asset(
 		wnd_at_asset_hub_rococo,
@@ -61,7 +61,7 @@ fn send_wnds_from_asset_hub_westend_to_asset_hub_rococo() {
 
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::create_pool(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get()),
-			Box::new(Parent.into()),
+			Box::new(xcm::v3::Parent.into()),
 			Box::new(wnd_at_asset_hub_rococo),
 		));
 
@@ -74,7 +74,7 @@ fn send_wnds_from_asset_hub_westend_to_asset_hub_rococo() {
 
 		assert_ok!(<AssetHubRococo as AssetHubRococoPallet>::AssetConversion::add_liquidity(
 			<AssetHubRococo as Chain>::RuntimeOrigin::signed(AssetHubRococoSender::get()),
-			Box::new(Parent.into()),
+			Box::new(xcm::v3::Parent.into()),
 			Box::new(wnd_at_asset_hub_rococo),
 			1_000_000_000_000,
 			2_000_000_000_000,
@@ -141,7 +141,7 @@ fn send_wnds_from_asset_hub_westend_to_asset_hub_rococo() {
 fn send_rocs_from_asset_hub_westend_to_asset_hub_rococo() {
 	let prefund_amount = 10_000_000_000_000u128;
 	let roc_at_asset_hub_westend =
-		MultiLocation { parents: 2, interior: X1(GlobalConsensus(NetworkId::Rococo)) };
+		v3::Location::new(2, [v3::Junction::GlobalConsensus(v3::NetworkId::Rococo)]);
 	let owner: AccountId = AssetHubWestend::account_id_of(ALICE);
 	AssetHubWestend::force_create_foreign_asset(
 		roc_at_asset_hub_westend,
@@ -169,8 +169,12 @@ fn send_rocs_from_asset_hub_westend_to_asset_hub_rococo() {
 	let receiver_rocs_before =
 		<AssetHubRococo as Chain>::account_data_of(AssetHubRococoReceiver::get()).free;
 
+	let roc_at_asset_hub_westend_latest: Location = roc_at_asset_hub_westend.try_into().unwrap();
 	let amount_to_send = ASSET_HUB_ROCOCO_ED * 1_000;
-	send_asset_from_asset_hub_westend_to_asset_hub_rococo(roc_at_asset_hub_westend, amount_to_send);
+	send_asset_from_asset_hub_westend_to_asset_hub_rococo(
+		roc_at_asset_hub_westend_latest.clone(),
+		amount_to_send,
+	);
 	AssetHubRococo::execute_with(|| {
 		type RuntimeEvent = <AssetHubRococo as Chain>::RuntimeEvent;
 		assert_expected_events!(

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-westend/src/tests/mod.rs

@@ -19,37 +19,31 @@ mod asset_transfers;
 mod send_xcm;
 mod teleport;
 
-pub(crate) fn asset_hub_rococo_location() -> MultiLocation {
+pub(crate) fn asset_hub_rococo_location() -> Location {
-	MultiLocation {
+	Location::new(
-		parents: 2,
+		2,
-		interior: X2(
+		[GlobalConsensus(NetworkId::Rococo), Parachain(AssetHubRococo::para_id().into())],
-			GlobalConsensus(NetworkId::Rococo),
+	)
-			Parachain(AssetHubRococo::para_id().into()),
-		),
-	}
 }
 
-pub(crate) fn bridge_hub_rococo_location() -> MultiLocation {
+pub(crate) fn bridge_hub_rococo_location() -> Location {
-	MultiLocation {
+	Location::new(
-		parents: 2,
+		2,
-		interior: X2(
+		[GlobalConsensus(NetworkId::Rococo), Parachain(BridgeHubRococo::para_id().into())],
-			GlobalConsensus(NetworkId::Rococo),
+	)
-			Parachain(BridgeHubRococo::para_id().into()),
-		),
-	}
 }
 
 pub(crate) fn send_asset_from_asset_hub_westend(
-	destination: MultiLocation,
+	destination: Location,
-	(id, amount): (MultiLocation, u128),
+	(id, amount): (Location, u128),
 ) -> DispatchResult {
 	let signed_origin =
 		<AssetHubWestend as Chain>::RuntimeOrigin::signed(AssetHubWestendSender::get().into());
 
-	let beneficiary: MultiLocation =
+	let beneficiary: Location =
 		AccountId32Junction { network: None, id: AssetHubRococoReceiver::get().into() }.into();
 
-	let assets: MultiAssets = (id, amount).into();
+	let assets: Assets = (id, amount).into();
 	let fee_asset_item = 0;
 
 	AssetHubWestend::execute_with(|| {

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-westend/src/tests/send_xcm.rs

@@ -30,7 +30,7 @@ fn send_xcm_from_westend_relay_to_rococo_asset_hub_should_fail_on_not_applicable
 		UnpaidExecution { weight_limit, check_origin },
 		ExportMessage {
 			network: RococoId,
-			destination: X1(Parachain(AssetHubRococo::para_id().into())),
+			destination: [Parachain(AssetHubRococo::para_id().into())].into(),
 			xcm: remote_xcm,
 		},
 	]));
@@ -68,7 +68,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 
 	// prepare data
 	let destination = asset_hub_rococo_location();
-	let native_token = MultiLocation::parent();
+	let native_token = Location::parent();
 	let amount = ASSET_HUB_WESTEND_ED * 1_000;
 
 	// fund the AHR's SA on BHR for paying bridge transport fees
@@ -78,7 +78,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 
 	// send XCM from AssetHubWestend - fails - destination version not known
 	assert_err!(
-		send_asset_from_asset_hub_westend(destination, (native_token, amount)),
+		send_asset_from_asset_hub_westend(destination.clone(), (native_token.clone(), amount)),
 		DispatchError::Module(sp_runtime::ModuleError {
 			index: 31,
 			error: [1, 0, 0, 0],
@@ -87,7 +87,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 	);
 
 	// set destination version
-	AssetHubWestend::force_xcm_version(destination, xcm::v3::prelude::XCM_VERSION);
+	AssetHubWestend::force_xcm_version(destination.clone(), xcm::v3::prelude::XCM_VERSION);
 
 	// TODO: remove this block, when removing `xcm:v2`
 	{
@@ -95,7 +95,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 		// version, which does not have the `ExportMessage` instruction. If the default `2` is
 		// changed to `3`, then this assert can go away"
 		assert_err!(
-			send_asset_from_asset_hub_westend(destination, (native_token, amount)),
+			send_asset_from_asset_hub_westend(destination.clone(), (native_token.clone(), amount)),
 			DispatchError::Module(sp_runtime::ModuleError {
 				index: 31,
 				error: [1, 0, 0, 0],
@@ -110,7 +110,7 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 		);
 		// send XCM from AssetHubWestend - fails - `ExportMessage` is not in `2`
 		assert_err!(
-			send_asset_from_asset_hub_westend(destination, (native_token, amount)),
+			send_asset_from_asset_hub_westend(destination.clone(), (native_token.clone(), amount)),
 			DispatchError::Module(sp_runtime::ModuleError {
 				index: 31,
 				error: [1, 0, 0, 0],
@@ -125,7 +125,10 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 		xcm::v3::prelude::XCM_VERSION,
 	);
 	// send XCM from AssetHubWestend - ok
-	assert_ok!(send_asset_from_asset_hub_westend(destination, (native_token, amount)));
+	assert_ok!(send_asset_from_asset_hub_westend(
+		destination.clone(),
+		(native_token.clone(), amount)
+	));
 
 	// `ExportMessage` on local BridgeHub - fails - remote BridgeHub version not known
 	assert_bridge_hub_westend_message_accepted(false);
@@ -142,7 +145,10 @@ fn send_xcm_through_opened_lane_with_different_xcm_version_on_hops_works() {
 	);
 
 	// send XCM from AssetHubWestend - ok
-	assert_ok!(send_asset_from_asset_hub_westend(destination, (native_token, amount)));
+	assert_ok!(send_asset_from_asset_hub_westend(
+		destination.clone(),
+		(native_token.clone(), amount)
+	));
 	assert_bridge_hub_westend_message_accepted(true);
 	assert_bridge_hub_rococo_message_received();
 	// message delivered and processed at destination

cumulus/parachains/integration-tests/emulated/tests/bridges/bridge-hub-westend/src/tests/teleport.rs

@@ -19,7 +19,7 @@ use bridge_hub_westend_runtime::xcm_config::XcmConfig;
 #[test]
 fn teleport_to_other_system_parachains_works() {
 	let amount = BRIDGE_HUB_WESTEND_ED * 100;
-	let native_asset: MultiAssets = (Parent, amount).into();
+	let native_asset: Assets = (Parent, amount).into();
 
 	test_parachain_is_trusted_teleporter!(
 		BridgeHubWestend,      // Origin

cumulus/parachains/pallets/ping/src/lib.rs

@@ -77,9 +77,9 @@ pub mod pallet {
 	#[pallet::event]
 	#[pallet::generate_deposit(pub(super) fn deposit_event)]
 	pub enum Event<T: Config> {
-		PingSent(ParaId, u32, Vec<u8>, XcmHash, MultiAssets),
+		PingSent(ParaId, u32, Vec<u8>, XcmHash, Assets),
 		Pinged(ParaId, u32, Vec<u8>),
-		PongSent(ParaId, u32, Vec<u8>, XcmHash, MultiAssets),
+		PongSent(ParaId, u32, Vec<u8>, XcmHash, Assets),
 		Ponged(ParaId, u32, Vec<u8>, BlockNumberFor<T>),
 		ErrorSendingPing(SendError, ParaId, u32, Vec<u8>),
 		ErrorSendingPong(SendError, ParaId, u32, Vec<u8>),

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs

@@ -31,7 +31,7 @@ use assets_common::{
 	foreign_creators::ForeignCreators,
 	local_and_foreign_assets::{LocalFromLeft, TargetFromLeft},
 	matching::{FromNetwork, FromSiblingParachain},
-	AssetIdForTrustBackedAssetsConvert, MultiLocationForAssetId,
+	AssetIdForTrustBackedAssetsConvert,
 };
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
 use cumulus_primitives_core::AggregateMessageOrigin;
@@ -80,13 +80,11 @@ use parachains_common::{
 	Signature, AVERAGE_ON_INITIALIZE_RATIO, DAYS, HOURS, MAXIMUM_BLOCK_WEIGHT,
 	NORMAL_DISPATCH_RATIO, SLOT_DURATION,
 };
-
 use sp_runtime::{Perbill, RuntimeDebug};
-use xcm::opaque::v3::MultiLocation;
 use xcm_config::{
 	ForeignAssetsConvertedConcreteId, ForeignCreatorsSovereignAccountOf, GovernanceLocation,
-	PoolAssetsConvertedConcreteId, TokenLocation, TrustBackedAssetsConvertedConcreteId,
+	PoolAssetsConvertedConcreteId, TokenLocation, TokenLocationV3,
-	TrustBackedAssetsPalletLocation,
+	TrustBackedAssetsConvertedConcreteId, TrustBackedAssetsPalletLocationV3,
 };
 
 #[cfg(any(feature = "std", test))]
@@ -95,7 +93,13 @@ pub use sp_runtime::BuildStorage;
 // Polkadot imports
 use pallet_xcm::{EnsureXcm, IsVoiceOfBody};
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
-use xcm::latest::prelude::*;
+// We exclude `Assets` since it's the name of a pallet
+#[cfg(feature = "runtime-benchmarks")]
+use xcm::latest::prelude::{
+	Asset, Fungible, Here, InteriorLocation, Junction, Junction::*, Location, NetworkId,
+	NonFungible, Parent, ParentThen, Response, XCM_VERSION,
+};
+use xcm::latest::prelude::{AssetId, BodyId};
 
 use weights::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight};
 
@@ -317,10 +321,11 @@ pub type LocalAndForeignAssets = fungibles::UnionOf<
 	Assets,
 	ForeignAssets,
 	LocalFromLeft<
-		AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation>,
+		AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocationV3>,
 		AssetIdForTrustBackedAssets,
+		xcm::v3::Location,
 	>,
-	MultiLocation,
+	xcm::v3::Location,
 	AccountId,
 >;
 
@@ -328,8 +333,8 @@ pub type LocalAndForeignAssets = fungibles::UnionOf<
 pub type NativeAndAssets = fungible::UnionOf<
 	Balances,
 	LocalAndForeignAssets,
-	TargetFromLeft<TokenLocation>,
+	TargetFromLeft<TokenLocationV3, xcm::v3::Location>,
-	MultiLocation,
+	xcm::v3::Location,
 	AccountId,
 >;
 
@@ -337,15 +342,15 @@ impl pallet_asset_conversion::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type Balance = Balance;
 	type HigherPrecisionBalance = sp_core::U256;
-	type AssetKind = MultiLocation;
+	type AssetKind = xcm::v3::Location;
 	type Assets = NativeAndAssets;
 	type PoolId = (Self::AssetKind, Self::AssetKind);
 	type PoolLocator =
-		pallet_asset_conversion::WithFirstAsset<TokenLocation, AccountId, Self::AssetKind>;
+		pallet_asset_conversion::WithFirstAsset<TokenLocationV3, AccountId, Self::AssetKind>;
 	type PoolAssetId = u32;
 	type PoolAssets = PoolAssets;
 	type PoolSetupFee = ConstU128<0>; // Asset class deposit fees are sufficient to prevent spam
-	type PoolSetupFeeAsset = TokenLocation;
+	type PoolSetupFeeAsset = TokenLocationV3;
 	type PoolSetupFeeTarget = ResolveAssetTo<AssetConversionOrigin, Self::Assets>;
 	type LiquidityWithdrawalFee = LiquidityWithdrawalFee;
 	type LPFee = ConstU32<3>;
@@ -355,9 +360,10 @@ impl pallet_asset_conversion::Config for Runtime {
 	type WeightInfo = weights::pallet_asset_conversion::WeightInfo<Runtime>;
 	#[cfg(feature = "runtime-benchmarks")]
 	type BenchmarkHelper = assets_common::benchmarks::AssetPairFactory<
-		TokenLocation,
+		TokenLocationV3,
 		parachain_info::Pallet<Runtime>,
-		xcm_config::AssetsPalletIndex,
+		xcm_config::TrustBackedAssetsPalletIndex,
+		xcm::v3::Location,
 	>;
 }
 
@@ -379,16 +385,17 @@ pub type ForeignAssetsInstance = pallet_assets::Instance2;
 impl pallet_assets::Config<ForeignAssetsInstance> for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type Balance = Balance;
-	type AssetId = MultiLocationForAssetId;
+	type AssetId = xcm::v3::MultiLocation;
-	type AssetIdParameter = MultiLocationForAssetId;
+	type AssetIdParameter = xcm::v3::MultiLocation;
 	type Currency = Balances;
 	type CreateOrigin = ForeignCreators<
 		(
-			FromSiblingParachain<parachain_info::Pallet<Runtime>>,
+			FromSiblingParachain<parachain_info::Pallet<Runtime>, xcm::v3::Location>,
-			FromNetwork<xcm_config::UniversalLocation, EthereumNetwork>,
+			FromNetwork<xcm_config::UniversalLocation, EthereumNetwork, xcm::v3::Location>,
 		),
 		ForeignCreatorsSovereignAccountOf,
 		AccountId,
+		xcm::v3::Location,
 	>;
 	type ForceOrigin = AssetsForceOrigin;
 	type AssetDeposit = ForeignAssetsAssetDeposit;
@@ -664,7 +671,7 @@ impl cumulus_pallet_aura_ext::Config for Runtime {}
 
 parameter_types! {
 	/// The asset ID for the asset that we use to pay for message delivery fees.
-	pub FeeAssetId: AssetId = Concrete(xcm_config::TokenLocation::get());
+	pub FeeAssetId: AssetId = AssetId(xcm_config::TokenLocation::get());
 	/// The base fee for the message delivery fees.
 	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
 }
@@ -753,7 +760,7 @@ impl pallet_asset_conversion_tx_payment::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type Fungibles = LocalAndForeignAssets;
 	type OnChargeAssetTransaction =
-		AssetConversionAdapter<Balances, AssetConversion, TokenLocation>;
+		AssetConversionAdapter<Balances, AssetConversion, TokenLocationV3>;
 }
 
 parameter_types! {
@@ -1157,18 +1164,16 @@ impl_runtime_apis! {
 	impl pallet_asset_conversion::AssetConversionApi<
 		Block,
 		Balance,
-		MultiLocation,
+		xcm::v3::Location,
 	> for Runtime
 	{
-		fn quote_price_exact_tokens_for_tokens(asset1: MultiLocation, asset2: MultiLocation, amount: Balance, include_fee: bool) -> Option<Balance> {
+		fn quote_price_exact_tokens_for_tokens(asset1: xcm::v3::Location, asset2: xcm::v3::Location, amount: Balance, include_fee: bool) -> Option<Balance> {
 			AssetConversion::quote_price_exact_tokens_for_tokens(asset1, asset2, amount, include_fee)
 		}
-
+		fn quote_price_tokens_for_exact_tokens(asset1: xcm::v3::Location, asset2: xcm::v3::Location, amount: Balance, include_fee: bool) -> Option<Balance> {
-		fn quote_price_tokens_for_exact_tokens(asset1: MultiLocation, asset2: MultiLocation, amount: Balance, include_fee: bool) -> Option<Balance> {
 			AssetConversion::quote_price_tokens_for_exact_tokens(asset1, asset2, amount, include_fee)
 		}
-
+		fn get_reserves(asset1: xcm::v3::Location, asset2: xcm::v3::Location) -> Option<(Balance, Balance)> {
-		fn get_reserves(asset1: MultiLocation, asset2: MultiLocation) -> Option<(Balance, Balance)> {
 			AssetConversion::get_reserves(asset1, asset2).ok()
 		}
 	}
@@ -1222,7 +1227,7 @@ impl_runtime_apis! {
 		AccountId,
 	> for Runtime
 	{
-		fn query_account_balances(account: AccountId) -> Result<xcm::VersionedMultiAssets, assets_common::runtime_api::FungiblesAccessError> {
+		fn query_account_balances(account: AccountId) -> Result<xcm::VersionedAssets, assets_common::runtime_api::FungiblesAccessError> {
 			use assets_common::fungible_conversion::{convert, convert_balance};
 			Ok([
 				// collect pallet_balance
@@ -1346,45 +1351,45 @@ impl_runtime_apis! {
 
 			use pallet_xcm::benchmarking::Pallet as PalletXcmExtrinsicsBenchmark;
 			impl pallet_xcm::benchmarking::Config for Runtime {
-				fn reachable_dest() -> Option<MultiLocation> {
+				fn reachable_dest() -> Option<Location> {
 					Some(Parent.into())
 				}
 
-				fn teleportable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn teleportable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Relay/native token can be teleported between AH and Relay.
 					Some((
-						MultiAsset {
+						Asset {
 							fun: Fungible(EXISTENTIAL_DEPOSIT),
-							id: Concrete(Parent.into())
+							id: AssetId(Parent.into())
 						},
 						Parent.into(),
 					))
 				}
 
-				fn reserve_transferable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn reserve_transferable_asset_and_dest() -> Option<(Asset, Location)> {
 					// AH can reserve transfer native token to some random parachain.
 					let random_para_id = 43211234;
 					ParachainSystem::open_outbound_hrmp_channel_for_benchmarks_or_tests(
 						random_para_id.into()
 					);
 					Some((
-						MultiAsset {
+						Asset {
 							fun: Fungible(EXISTENTIAL_DEPOSIT),
-							id: Concrete(Parent.into())
+							id: AssetId(Parent.into())
 						},
 						ParentThen(Parachain(random_para_id).into()).into(),
 					))
 				}
 
 				fn set_up_complex_asset_transfer(
-				) -> Option<(MultiAssets, u32, MultiLocation, Box<dyn FnOnce()>)> {
+				) -> Option<(xcm::v4::Assets, u32, Location, Box<dyn FnOnce()>)> {
 					// Transfer to Relay some local AH asset (local-reserve-transfer) while paying
 					// fees using teleported native token.
 					// (We don't care that Relay doesn't accept incoming unknown AH local asset)
 					let dest = Parent.into();
 
 					let fee_amount = EXISTENTIAL_DEPOSIT;
-					let fee_asset: MultiAsset = (MultiLocation::parent(), fee_amount).into();
+					let fee_asset: Asset = (Location::parent(), fee_amount).into();
 
 					let who = frame_benchmarking::whitelisted_caller();
 					// Give some multiple of the existential deposit
@@ -1402,13 +1407,13 @@ impl_runtime_apis! {
 						Runtime,
 						pallet_assets::Instance1
 					>(true, initial_asset_amount);
-					let asset_location = MultiLocation::new(
+					let asset_location = Location::new(
 						0,
-						X2(PalletInstance(50), GeneralIndex(u32::from(asset_id).into()))
+						[PalletInstance(50), GeneralIndex(u32::from(asset_id).into())]
 					);
-					let transfer_asset: MultiAsset = (asset_location, asset_amount).into();
+					let transfer_asset: Asset = (asset_location, asset_amount).into();
 
-					let assets: MultiAssets = vec![fee_asset.clone(), transfer_asset].into();
+					let assets: xcm::v4::Assets = vec![fee_asset.clone(), transfer_asset].into();
 					let fee_index = if assets.get(0).unwrap().eq(&fee_asset) { 0 } else { 1 };
 
 					// verify transferred successfully
@@ -1432,14 +1437,14 @@ impl_runtime_apis! {
 						xcm_config::bridging::SiblingBridgeHubParaId::get().into()
 					);
 				}
-				fn ensure_bridged_target_destination() -> Result<MultiLocation, BenchmarkError> {
+				fn ensure_bridged_target_destination() -> Result<Location, BenchmarkError> {
 					ParachainSystem::open_outbound_hrmp_channel_for_benchmarks_or_tests(
 						xcm_config::bridging::SiblingBridgeHubParaId::get().into()
 					);
 					let bridged_asset_hub = xcm_config::bridging::to_westend::AssetHubWestend::get();
 					let _ = PolkadotXcm::force_xcm_version(
 						RuntimeOrigin::root(),
-						Box::new(bridged_asset_hub),
+						Box::new(bridged_asset_hub.clone()),
 						XCM_VERSION,
 					).map_err(|e| {
 						log::error!(
@@ -1455,12 +1460,11 @@ impl_runtime_apis! {
 				}
 			}
 
-			use xcm::latest::prelude::*;
 			use xcm_config::{TokenLocation, MaxAssetsIntoHolding};
 			use pallet_xcm_benchmarks::asset_instance_from;
 
 			parameter_types! {
-				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+				pub ExistentialDepositAsset: Option<Asset> = Some((
 					TokenLocation::get(),
 					ExistentialDeposit::get()
 				).into());
@@ -1471,33 +1475,33 @@ impl_runtime_apis! {
 				type AccountIdConverter = xcm_config::LocationToAccountId;
 				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
 					xcm_config::XcmConfig,
-					ExistentialDepositMultiAsset,
+					ExistentialDepositAsset,
 					xcm_config::PriceForParentDelivery,
 				>;
-				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
+				fn valid_destination() -> Result<Location, BenchmarkError> {
 					Ok(TokenLocation::get())
 				}
-				fn worst_case_holding(depositable_count: u32) -> MultiAssets {
+				fn worst_case_holding(depositable_count: u32) -> xcm::v4::Assets {
 					// A mix of fungible, non-fungible, and concrete assets.
 					let holding_non_fungibles = MaxAssetsIntoHolding::get() / 2 - depositable_count;
 					let holding_fungibles = holding_non_fungibles.saturating_sub(1);
 					let fungibles_amount: u128 = 100;
 					let mut assets = (0..holding_fungibles)
 						.map(|i| {
-							MultiAsset {
+							Asset {
-								id: Concrete(GeneralIndex(i as u128).into()),
+								id: GeneralIndex(i as u128).into(),
 								fun: Fungible(fungibles_amount * i as u128),
 							}
 						})
-						.chain(core::iter::once(MultiAsset { id: Concrete(Here.into()), fun: Fungible(u128::MAX) }))
+						.chain(core::iter::once(Asset { id: Here.into(), fun: Fungible(u128::MAX) }))
-						.chain((0..holding_non_fungibles).map(|i| MultiAsset {
+						.chain((0..holding_non_fungibles).map(|i| Asset {
-							id: Concrete(GeneralIndex(i as u128).into()),
+							id: GeneralIndex(i as u128).into(),
 							fun: NonFungible(asset_instance_from(i)),
 						}))
 						.collect::<Vec<_>>();
 
-					assets.push(MultiAsset {
+					assets.push(Asset {
-						id: Concrete(TokenLocation::get()),
+						id: AssetId(TokenLocation::get()),
 						fun: Fungible(1_000_000 * UNITS),
 					});
 					assets.into()
@@ -1505,16 +1509,16 @@ impl_runtime_apis! {
 			}
 
 			parameter_types! {
-				pub const TrustedTeleporter: Option<(MultiLocation, MultiAsset)> = Some((
+				pub const TrustedTeleporter: Option<(Location, Asset)> = Some((
 					TokenLocation::get(),
-					MultiAsset { fun: Fungible(UNITS), id: Concrete(TokenLocation::get()) },
+					Asset { fun: Fungible(UNITS), id: AssetId(TokenLocation::get()) },
 				));
 				pub const CheckedAccount: Option<(AccountId, xcm_builder::MintLocation)> = None;
 				// AssetHubRococo trusts AssetHubWestend as reserve for WNDs
-				pub TrustedReserve: Option<(MultiLocation, MultiAsset)> = Some(
+				pub TrustedReserve: Option<(Location, Asset)> = Some(
 					(
 						xcm_config::bridging::to_westend::AssetHubWestend::get(),
-						MultiAsset::from((xcm_config::bridging::to_westend::WndLocation::get(), 1000000000000 as u128))
+						Asset::from((xcm_config::bridging::to_westend::WndLocation::get(), 1000000000000 as u128))
 					)
 				);
 			}
@@ -1526,9 +1530,9 @@ impl_runtime_apis! {
 				type TrustedTeleporter = TrustedTeleporter;
 				type TrustedReserve = TrustedReserve;
 
-				fn get_multi_asset() -> MultiAsset {
+				fn get_asset() -> Asset {
-					MultiAsset {
+					Asset {
-						id: Concrete(TokenLocation::get()),
+						id: AssetId(TokenLocation::get()),
 						fun: Fungible(UNITS),
 					}
 				}
@@ -1542,42 +1546,42 @@ impl_runtime_apis! {
 					(0u64, Response::Version(Default::default()))
 				}
 
-				fn worst_case_asset_exchange() -> Result<(MultiAssets, MultiAssets), BenchmarkError> {
+				fn worst_case_asset_exchange() -> Result<(xcm::v4::Assets, xcm::v4::Assets), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn universal_alias() -> Result<(MultiLocation, Junction), BenchmarkError> {
+				fn universal_alias() -> Result<(Location, Junction), BenchmarkError> {
 					match xcm_config::bridging::BridgingBenchmarksHelper::prepare_universal_alias() {
 						Some(alias) => Ok(alias),
 						None => Err(BenchmarkError::Skip)
 					}
 				}
 
-				fn transact_origin_and_runtime_call() -> Result<(MultiLocation, RuntimeCall), BenchmarkError> {
+				fn transact_origin_and_runtime_call() -> Result<(Location, RuntimeCall), BenchmarkError> {
 					Ok((TokenLocation::get(), frame_system::Call::remark_with_event { remark: vec![] }.into()))
 				}
 
-				fn subscribe_origin() -> Result<MultiLocation, BenchmarkError> {
+				fn subscribe_origin() -> Result<Location, BenchmarkError> {
 					Ok(TokenLocation::get())
 				}
 
-				fn claimable_asset() -> Result<(MultiLocation, MultiLocation, MultiAssets), BenchmarkError> {
+				fn claimable_asset() -> Result<(Location, Location, xcm::v4::Assets), BenchmarkError> {
 					let origin = TokenLocation::get();
-					let assets: MultiAssets = (Concrete(TokenLocation::get()), 1_000 * UNITS).into();
+					let assets: xcm::v4::Assets = (TokenLocation::get(), 1_000 * UNITS).into();
-					let ticket = MultiLocation { parents: 0, interior: Here };
+					let ticket = Location { parents: 0, interior: Here };
 					Ok((origin, ticket, assets))
 				}
 
-				fn unlockable_asset() -> Result<(MultiLocation, MultiLocation, MultiAsset), BenchmarkError> {
+				fn unlockable_asset() -> Result<(Location, Location, Asset), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
 				fn export_message_origin_and_destination(
-				) -> Result<(MultiLocation, NetworkId, InteriorMultiLocation), BenchmarkError> {
+				) -> Result<(Location, NetworkId, InteriorLocation), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn alias_origin() -> Result<(MultiLocation, MultiLocation), BenchmarkError> {
+				fn alias_origin() -> Result<(Location, Location), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 			}

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/weights/xcm/mod.rs

@@ -24,14 +24,14 @@ use pallet_xcm_benchmarks_generic::WeightInfo as XcmGeneric;
 use sp_std::prelude::*;
 use xcm::{latest::prelude::*, DoubleEncoded};
 
-trait WeighMultiAssets {
+trait WeighAssets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight;
+	fn weigh_assets(&self, weight: Weight) -> Weight;
 }
 
 const MAX_ASSETS: u64 = 100;
 
-impl WeighMultiAssets for MultiAssetFilter {
+impl WeighAssets for AssetFilter {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		match self {
 			Self::Definite(assets) => weight.saturating_mul(assets.inner().iter().count() as u64),
 			Self::Wild(asset) => match asset {
@@ -50,40 +50,36 @@ impl WeighMultiAssets for MultiAssetFilter {
 	}
 }
 
-impl WeighMultiAssets for MultiAssets {
+impl WeighAssets for Assets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		weight.saturating_mul(self.inner().iter().count() as u64)
 	}
 }
 
 pub struct AssetHubRococoXcmWeight<Call>(core::marker::PhantomData<Call>);
 impl<Call> XcmWeightInfo<Call> for AssetHubRococoXcmWeight<Call> {
-	fn withdraw_asset(assets: &MultiAssets) -> Weight {
+	fn withdraw_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
 	}
-	fn reserve_asset_deposited(assets: &MultiAssets) -> Weight {
+	fn reserve_asset_deposited(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
 	}
-	fn receive_teleported_asset(assets: &MultiAssets) -> Weight {
+	fn receive_teleported_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
 	}
 	fn query_response(
 		_query_id: &u64,
 		_response: &Response,
 		_max_weight: &Weight,
-		_querier: &Option<MultiLocation>,
+		_querier: &Option<Location>,
 	) -> Weight {
 		XcmGeneric::<Runtime>::query_response()
 	}
-	fn transfer_asset(assets: &MultiAssets, _dest: &MultiLocation) -> Weight {
+	fn transfer_asset(assets: &Assets, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
 	}
-	fn transfer_reserve_asset(
+	fn transfer_reserve_asset(assets: &Assets, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssets,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
 	}
 	fn transact(
 		_origin_type: &OriginKind,
@@ -111,43 +107,35 @@ impl<Call> XcmWeightInfo<Call> for AssetHubRococoXcmWeight<Call> {
 	fn clear_origin() -> Weight {
 		XcmGeneric::<Runtime>::clear_origin()
 	}
-	fn descend_origin(_who: &InteriorMultiLocation) -> Weight {
+	fn descend_origin(_who: &InteriorLocation) -> Weight {
 		XcmGeneric::<Runtime>::descend_origin()
 	}
 	fn report_error(_query_response_info: &QueryResponseInfo) -> Weight {
 		XcmGeneric::<Runtime>::report_error()
 	}
-	fn deposit_asset(assets: &MultiAssetFilter, _dest: &MultiLocation) -> Weight {
+	fn deposit_asset(assets: &AssetFilter, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
 	}
-	fn deposit_reserve_asset(
+	fn deposit_reserve_asset(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
 	}
-	fn exchange_asset(_give: &MultiAssetFilter, _receive: &MultiAssets, _maximal: &bool) -> Weight {
+	fn exchange_asset(_give: &AssetFilter, _receive: &Assets, _maximal: &bool) -> Weight {
 		Weight::MAX
 	}
 	fn initiate_reserve_withdraw(
-		assets: &MultiAssetFilter,
+		assets: &AssetFilter,
-		_reserve: &MultiLocation,
+		_reserve: &Location,
 		_xcm: &Xcm<()>,
 	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
 	}
-	fn initiate_teleport(
+	fn initiate_teleport(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
 	}
-	fn report_holding(_response_info: &QueryResponseInfo, _assets: &MultiAssetFilter) -> Weight {
+	fn report_holding(_response_info: &QueryResponseInfo, _assets: &AssetFilter) -> Weight {
 		XcmGeneric::<Runtime>::report_holding()
 	}
-	fn buy_execution(_fees: &MultiAsset, _weight_limit: &WeightLimit) -> Weight {
+	fn buy_execution(_fees: &Asset, _weight_limit: &WeightLimit) -> Weight {
 		XcmGeneric::<Runtime>::buy_execution()
 	}
 	fn refund_surplus() -> Weight {
@@ -162,7 +150,7 @@ impl<Call> XcmWeightInfo<Call> for AssetHubRococoXcmWeight<Call> {
 	fn clear_error() -> Weight {
 		XcmGeneric::<Runtime>::clear_error()
 	}
-	fn claim_asset(_assets: &MultiAssets, _ticket: &MultiLocation) -> Weight {
+	fn claim_asset(_assets: &Assets, _ticket: &Location) -> Weight {
 		XcmGeneric::<Runtime>::claim_asset()
 	}
 	fn trap(_code: &u64) -> Weight {
@@ -174,13 +162,13 @@ impl<Call> XcmWeightInfo<Call> for AssetHubRococoXcmWeight<Call> {
 	fn unsubscribe_version() -> Weight {
 		XcmGeneric::<Runtime>::unsubscribe_version()
 	}
-	fn burn_asset(assets: &MultiAssets) -> Weight {
+	fn burn_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::burn_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::burn_asset())
 	}
-	fn expect_asset(assets: &MultiAssets) -> Weight {
+	fn expect_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::expect_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::expect_asset())
 	}
-	fn expect_origin(_origin: &Option<MultiLocation>) -> Weight {
+	fn expect_origin(_origin: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::expect_origin()
 	}
 	fn expect_error(_error: &Option<(u32, XcmError)>) -> Weight {
@@ -213,16 +201,16 @@ impl<Call> XcmWeightInfo<Call> for AssetHubRococoXcmWeight<Call> {
 	fn export_message(_: &NetworkId, _: &Junctions, _: &Xcm<()>) -> Weight {
 		Weight::MAX
 	}
-	fn lock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn lock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn unlock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn unlock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn note_unlockable(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn note_unlockable(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn request_unlock(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn request_unlock(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
 	fn set_fees_mode(_: &bool) -> Weight {
@@ -234,11 +222,11 @@ impl<Call> XcmWeightInfo<Call> for AssetHubRococoXcmWeight<Call> {
 	fn clear_topic() -> Weight {
 		XcmGeneric::<Runtime>::clear_topic()
 	}
-	fn alias_origin(_: &MultiLocation) -> Weight {
+	fn alias_origin(_: &Location) -> Weight {
 		// XCM Executor does not currently support alias origin operations
 		Weight::MAX
 	}
-	fn unpaid_execution(_: &WeightLimit, _: &Option<MultiLocation>) -> Weight {
+	fn unpaid_execution(_: &WeightLimit, _: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::unpaid_execution()
 	}
 }

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/xcm_config.rs

@@ -20,12 +20,12 @@ use super::{
 	ToWestendXcmRouter, TransactionByteFee, TrustBackedAssetsInstance, WeightToFee, XcmpQueue,
 };
 use assets_common::{
-	local_and_foreign_assets::MatchesLocalAndForeignAssetsMultiLocation,
+	local_and_foreign_assets::MatchesLocalAndForeignAssetsLocation,
 	matching::{FromNetwork, FromSiblingParachain, IsForeignConcreteAsset},
-	TrustBackedAssetsAsMultiLocation,
+	TrustBackedAssetsAsLocation,
 };
 use frame_support::{
-	match_types, parameter_types,
+	parameter_types,
 	traits::{
 		tokens::imbalance::ResolveAssetTo, ConstU32, Contains, Equals, Everything, Nothing,
 		PalletInfoAccess,
@@ -64,26 +64,32 @@ use xcm_builder::{
 use xcm_executor::{traits::WithOriginFilter, XcmExecutor};
 
 parameter_types! {
-	pub const TokenLocation: MultiLocation = MultiLocation::parent();
+	pub const TokenLocation: Location = Location::parent();
+	pub const TokenLocationV3: xcm::v3::Location = xcm::v3::Location::parent();
 	pub const RelayNetwork: NetworkId = NetworkId::Rococo;
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
-	pub UniversalLocation: InteriorMultiLocation =
+	pub UniversalLocation: InteriorLocation =
-		X2(GlobalConsensus(RelayNetwork::get()), Parachain(ParachainInfo::parachain_id().into()));
+		[GlobalConsensus(RelayNetwork::get()), Parachain(ParachainInfo::parachain_id().into())].into();
 	pub UniversalLocationNetworkId: NetworkId = UniversalLocation::get().global_consensus().unwrap();
-	pub AssetsPalletIndex: u32 = <Assets as PalletInfoAccess>::index() as u32;
+	pub TrustBackedAssetsPalletLocation: Location =
-	pub TrustBackedAssetsPalletLocation: MultiLocation = PalletInstance(AssetsPalletIndex::get() as u8).into();
+		PalletInstance(TrustBackedAssetsPalletIndex::get()).into();
-	pub ForeignAssetsPalletLocation: MultiLocation =
+	pub TrustBackedAssetsPalletIndex: u8 = <Assets as PalletInfoAccess>::index() as u8;
+	pub TrustBackedAssetsPalletLocationV3: xcm::v3::Location =
+		xcm::v3::Junction::PalletInstance(<Assets as PalletInfoAccess>::index() as u8).into();
+	pub ForeignAssetsPalletLocation: Location =
 		PalletInstance(<ForeignAssets as PalletInfoAccess>::index() as u8).into();
-	pub PoolAssetsPalletLocation: MultiLocation =
+	pub PoolAssetsPalletLocation: Location =
 		PalletInstance(<PoolAssets as PalletInfoAccess>::index() as u8).into();
+	pub PoolAssetsPalletLocationV3: xcm::v3::Location =
+		xcm::v3::Junction::PalletInstance(<PoolAssets as PalletInfoAccess>::index() as u8).into();
 	pub CheckingAccount: AccountId = PolkadotXcm::check_account();
+	pub const GovernanceLocation: Location = Location::parent();
 	pub StakingPot: AccountId = CollatorSelection::account_id();
-	pub const GovernanceLocation: MultiLocation = MultiLocation::parent();
 	pub TreasuryAccount: AccountId = TREASURY_PALLET_ID.into_account_truncating();
-	pub RelayTreasuryLocation: MultiLocation = (Parent, PalletInstance(rococo_runtime_constants::TREASURY_PALLET_ID)).into();
+	pub RelayTreasuryLocation: Location = (Parent, PalletInstance(rococo_runtime_constants::TREASURY_PALLET_ID)).into();
 }
 
-/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
+/// Type for specifying how a `Location` can be converted into an `AccountId`. This is used
 /// when determining ownership of accounts for asset transacting and when attempting to use XCM
 /// `Transact` in order to determine the dispatch Origin.
 pub type LocationToAccountId = (
@@ -110,7 +116,7 @@ pub type CurrencyTransactor = CurrencyAdapter<
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	IsConcrete<TokenLocation>,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -128,7 +134,7 @@ pub type FungiblesTransactor = FungiblesAdapter<
 	Assets,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	TrustBackedAssetsConvertedConcreteId,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -145,8 +151,8 @@ pub type ForeignAssetsConvertedConcreteId = assets_common::ForeignAssetsConverte
 		// Ignore `TrustBackedAssets` explicitly
 		StartsWith<TrustBackedAssetsPalletLocation>,
 		// Ignore assets that start explicitly with our `GlobalConsensus(NetworkId)`, means:
-		// - foreign assets from our consensus should be: `MultiLocation {parents: 1,
+		// - foreign assets from our consensus should be: `Location {parents: 1, X*(Parachain(xyz),
-		//   X*(Parachain(xyz), ..)}`
+		//   ..)}`
 		// - foreign assets outside our consensus with the same `GlobalConsensus(NetworkId)` won't
 		//   be accepted here
 		StartsWithExplicitGlobalConsensus<UniversalLocationNetworkId>,
@@ -160,7 +166,7 @@ pub type ForeignFungiblesTransactor = FungiblesAdapter<
 	ForeignAssets,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	ForeignAssetsConvertedConcreteId,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -180,7 +186,7 @@ pub type PoolFungiblesTransactor = FungiblesAdapter<
 	PoolAssets,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	PoolAssetsConvertedConcreteId,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -195,20 +201,32 @@ pub type PoolFungiblesTransactor = FungiblesAdapter<
 pub type AssetTransactors =
 	(CurrencyTransactor, FungiblesTransactor, ForeignFungiblesTransactor, PoolFungiblesTransactor);
 
-/// Simple `MultiLocation` matcher for Local and Foreign asset `MultiLocation`.
+/// Simple `Location` matcher for Local and Foreign asset `Location`.
-pub struct LocalAndForeignAssetsMultiLocationMatcher;
+pub struct LocalAndForeignAssetsLocationMatcher;
-impl MatchesLocalAndForeignAssetsMultiLocation for LocalAndForeignAssetsMultiLocationMatcher {
+impl MatchesLocalAndForeignAssetsLocation<xcm::v3::Location>
-	fn is_local(location: &MultiLocation) -> bool {
+	for LocalAndForeignAssetsLocationMatcher
-		use assets_common::fungible_conversion::MatchesMultiLocation;
+{
-		TrustBackedAssetsConvertedConcreteId::contains(location)
+	fn is_local(location: &xcm::v3::Location) -> bool {
+		use assets_common::fungible_conversion::MatchesLocation;
+		let latest_location: Location = if let Ok(location) = (*location).try_into() {
+			location
+		} else {
+			return false;
+		};
+		TrustBackedAssetsConvertedConcreteId::contains(&latest_location)
 	}
-	fn is_foreign(location: &MultiLocation) -> bool {
+	fn is_foreign(location: &xcm::v3::Location) -> bool {
-		use assets_common::fungible_conversion::MatchesMultiLocation;
+		use assets_common::fungible_conversion::MatchesLocation;
-		ForeignAssetsConvertedConcreteId::contains(location)
+		let latest_location: Location = if let Ok(location) = (*location).try_into() {
+			location
+		} else {
+			return false;
+		};
+		ForeignAssetsConvertedConcreteId::contains(&latest_location)
 	}
 }
-impl Contains<MultiLocation> for LocalAndForeignAssetsMultiLocationMatcher {
+impl Contains<xcm::v3::Location> for LocalAndForeignAssetsLocationMatcher {
-	fn contains(location: &MultiLocation) -> bool {
+	fn contains(location: &xcm::v3::Location) -> bool {
 		Self::is_local(location) || Self::is_foreign(location)
 	}
 }
@@ -243,11 +261,11 @@ parameter_types! {
 	pub XcmAssetFeesReceiver: Option<AccountId> = Authorship::author();
 }
 
-match_types! {
+pub struct ParentOrParentsPlurality;
-	pub type ParentOrParentsPlurality: impl Contains<MultiLocation> = {
+impl Contains<Location> for ParentOrParentsPlurality {
-		MultiLocation { parents: 1, interior: Here } |
+	fn contains(location: &Location) -> bool {
-		MultiLocation { parents: 1, interior: X1(Plurality { .. }) }
+		matches!(location.unpack(), (1, []) | (1, [Plurality { .. }]))
-	};
+	}
 }
 
 /// A call filter for the XCM Transact instruction. This is a temporary measure until we properly
@@ -556,12 +574,12 @@ impl xcm_executor::Config for XcmConfig {
 	type Trader = (
 		UsingComponents<WeightToFee, TokenLocation, AccountId, Balances, ToStakingPot<Runtime>>,
 		cumulus_primitives_utility::SwapFirstAssetTrader<
-			TokenLocation,
+			TokenLocationV3,
 			crate::AssetConversion,
 			WeightToFee,
 			crate::NativeAndAssets,
 			(
-				TrustBackedAssetsAsMultiLocation<TrustBackedAssetsPalletLocation, Balance>,
+				TrustBackedAssetsAsLocation<TrustBackedAssetsPalletLocation, Balance>,
 				ForeignAssetsConvertedConcreteId,
 			),
 			ResolveAssetTo<StakingPot, crate::NativeAndAssets>,
@@ -588,7 +606,7 @@ impl xcm_executor::Config for XcmConfig {
 	type Aliasers = Nothing;
 }
 
-/// Converts a local signed origin into an XCM multilocation.
+/// Converts a local signed origin into an XCM location.
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
@@ -664,9 +682,9 @@ pub type ForeignCreatorsSovereignAccountOf = (
 /// Simple conversion of `u32` into an `AssetId` for use in benchmarking.
 pub struct XcmBenchmarkHelper;
 #[cfg(feature = "runtime-benchmarks")]
-impl pallet_assets::BenchmarkHelper<MultiLocation> for XcmBenchmarkHelper {
+impl pallet_assets::BenchmarkHelper<xcm::v3::Location> for XcmBenchmarkHelper {
-	fn create_asset_id_parameter(id: u32) -> MultiLocation {
+	fn create_asset_id_parameter(id: u32) -> xcm::v3::Location {
-		MultiLocation { parents: 1, interior: X1(Parachain(id)) }
+		xcm::v3::Location::new(1, [xcm::v3::Junction::Parachain(id)])
 	}
 }
 
@@ -698,7 +716,7 @@ pub mod bridging {
 		pub storage XcmBridgeHubRouterByteFee: Balance = TransactionByteFee::get();
 
 		pub SiblingBridgeHubParaId: u32 = bp_bridge_hub_rococo::BRIDGE_HUB_ROCOCO_PARACHAIN_ID;
-		pub SiblingBridgeHub: MultiLocation = MultiLocation::new(1, X1(Parachain(SiblingBridgeHubParaId::get())));
+		pub SiblingBridgeHub: Location = Location::new(1, [Parachain(SiblingBridgeHubParaId::get())]);
 		/// Router expects payment with this `AssetId`.
 		/// (`AssetId` has to be aligned with `BridgeTable`)
 		pub XcmBridgeHubRouterFeeAssetId: AssetId = TokenLocation::get().into();
@@ -722,25 +740,25 @@ pub mod bridging {
 		use super::*;
 
 		parameter_types! {
-			pub SiblingBridgeHubWithBridgeHubWestendInstance: MultiLocation = MultiLocation::new(
+			pub SiblingBridgeHubWithBridgeHubWestendInstance: Location = Location::new(
 				1,
-				X2(
+				[
 					Parachain(SiblingBridgeHubParaId::get()),
 					PalletInstance(bp_bridge_hub_rococo::WITH_BRIDGE_ROCOCO_TO_WESTEND_MESSAGES_PALLET_INDEX)
-				)
+				]
 			);
 
 			pub const WestendNetwork: NetworkId = NetworkId::Westend;
-			pub AssetHubWestend: MultiLocation = MultiLocation::new(2, X2(GlobalConsensus(WestendNetwork::get()), Parachain(bp_asset_hub_westend::ASSET_HUB_WESTEND_PARACHAIN_ID)));
+			pub AssetHubWestend: Location = Location::new(2, [GlobalConsensus(WestendNetwork::get()), Parachain(bp_asset_hub_westend::ASSET_HUB_WESTEND_PARACHAIN_ID)]);
-			pub WndLocation: MultiLocation = MultiLocation::new(2, X1(GlobalConsensus(WestendNetwork::get())));
+			pub WndLocation: Location = Location::new(2, [GlobalConsensus(WestendNetwork::get())]);
 
-			pub WndFromAssetHubWestend: (MultiAssetFilter, MultiLocation) = (
+			pub WndFromAssetHubWestend: (AssetFilter, Location) = (
-				Wild(AllOf { fun: WildFungible, id: Concrete(WndLocation::get()) }),
+				Wild(AllOf { fun: WildFungible, id: AssetId(WndLocation::get()) }),
 				AssetHubWestend::get()
 			);
 
 			/// Set up exporters configuration.
-			/// `Option<MultiAsset>` represents static "base fee" which is used for total delivery fee calculation.
+			/// `Option<Asset>` represents static "base fee" which is used for total delivery fee calculation.
 			pub BridgeTable: sp_std::vec::Vec<NetworkExportTableItem> = sp_std::vec![
 				NetworkExportTableItem::new(
 					WestendNetwork::get(),
@@ -757,15 +775,15 @@ pub mod bridging {
 			];
 
 			/// Universal aliases
-			pub UniversalAliases: BTreeSet<(MultiLocation, Junction)> = BTreeSet::from_iter(
+			pub UniversalAliases: BTreeSet<(Location, Junction)> = BTreeSet::from_iter(
 				sp_std::vec![
 					(SiblingBridgeHubWithBridgeHubWestendInstance::get(), GlobalConsensus(WestendNetwork::get()))
 				]
 			);
 		}
 
-		impl Contains<(MultiLocation, Junction)> for UniversalAliases {
+		impl Contains<(Location, Junction)> for UniversalAliases {
-			fn contains(alias: &(MultiLocation, Junction)) -> bool {
+			fn contains(alias: &(Location, Junction)) -> bool {
 				UniversalAliases::get().contains(alias)
 			}
 		}
@@ -804,16 +822,16 @@ pub mod bridging {
 			/// Polkadot uses 10 decimals, Kusama and Rococo 12 decimals.
 			pub const DefaultBridgeHubEthereumBaseFee: Balance = 2_750_872_500_000;
 			pub storage BridgeHubEthereumBaseFee: Balance = DefaultBridgeHubEthereumBaseFee::get();
-			pub SiblingBridgeHubWithEthereumInboundQueueInstance: MultiLocation = MultiLocation::new(
+			pub SiblingBridgeHubWithEthereumInboundQueueInstance: Location = Location::new(
 				1,
-				X2(
+				[
 					Parachain(SiblingBridgeHubParaId::get()),
 					PalletInstance(parachains_common::rococo::snowbridge::INBOUND_QUEUE_PALLET_INDEX)
-				)
+				]
 			);
 
 			/// Set up exporters configuration.
-			/// `Option<MultiAsset>` represents static "base fee" which is used for total delivery fee calculation.
+			/// `Option<Asset>` represents static "base fee" which is used for total delivery fee calculation.
 			pub BridgeTable: sp_std::vec::Vec<NetworkExportTableItem> = sp_std::vec![
 				NetworkExportTableItem::new(
 					EthereumNetwork::get(),
@@ -827,7 +845,7 @@ pub mod bridging {
 			];
 
 			/// Universal aliases
-			pub UniversalAliases: BTreeSet<(MultiLocation, Junction)> = BTreeSet::from_iter(
+			pub UniversalAliases: BTreeSet<(Location, Junction)> = BTreeSet::from_iter(
 				sp_std::vec![
 					(SiblingBridgeHubWithEthereumInboundQueueInstance::get(), GlobalConsensus(EthereumNetwork::get())),
 				]
@@ -837,8 +855,8 @@ pub mod bridging {
 		pub type IsTrustedBridgedReserveLocationForForeignAsset =
 			matching::IsForeignConcreteAsset<FromNetwork<UniversalLocation, EthereumNetwork>>;
 
-		impl Contains<(MultiLocation, Junction)> for UniversalAliases {
+		impl Contains<(Location, Junction)> for UniversalAliases {
-			fn contains(alias: &(MultiLocation, Junction)) -> bool {
+			fn contains(alias: &(Location, Junction)) -> bool {
 				UniversalAliases::get().contains(alias)
 			}
 		}
@@ -850,7 +868,7 @@ pub mod bridging {
 
 	#[cfg(feature = "runtime-benchmarks")]
 	impl BridgingBenchmarksHelper {
-		pub fn prepare_universal_alias() -> Option<(MultiLocation, Junction)> {
+		pub fn prepare_universal_alias() -> Option<(Location, Junction)> {
 			let alias =
 				to_westend::UniversalAliases::get()
 					.into_iter()

cumulus/parachains/runtimes/assets/asset-hub-rococo/tests/tests.rs

@@ -19,12 +19,18 @@
 
 use asset_hub_rococo_runtime::{
 	xcm_config,
-	xcm_config::{bridging, ForeignCreatorsSovereignAccountOf, LocationToAccountId, TokenLocation},
+	xcm_config::{
+		bridging, ForeignCreatorsSovereignAccountOf, LocationToAccountId, TokenLocation,
+		TokenLocationV3,
+	},
 	AllPalletsWithoutSystem, MetadataDepositBase, MetadataDepositPerByte, RuntimeCall,
 	RuntimeEvent, ToWestendXcmRouterInstance, XcmpQueue,
 };
 pub use asset_hub_rococo_runtime::{
-	xcm_config::{CheckingAccount, TrustBackedAssetsPalletLocation, XcmConfig},
+	xcm_config::{
+		CheckingAccount, TrustBackedAssetsPalletLocation, TrustBackedAssetsPalletLocationV3,
+		XcmConfig,
+	},
 	AssetConversion, AssetDeposit, Assets, Balances, CollatorSelection, ExistentialDeposit,
 	ForeignAssets, ForeignAssetsInstance, ParachainSystem, Runtime, SessionKeys, System,
 	TrustBackedAssetsInstance,
@@ -49,14 +55,18 @@ use parachains_common::{
 };
 use sp_runtime::traits::MaybeEquivalence;
 use std::convert::Into;
-use xcm::latest::prelude::*;
+use xcm::latest::prelude::{Assets as XcmAssets, *};
-use xcm_executor::traits::{Identity, JustTry, WeightTrader};
+use xcm_builder::V4V3LocationConverter;
+use xcm_executor::traits::{JustTry, WeightTrader};
 
 const ALICE: [u8; 32] = [1u8; 32];
 const SOME_ASSET_ADMIN: [u8; 32] = [5u8; 32];
 
 type AssetIdForTrustBackedAssetsConvert =
-	assets_common::AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation>;
+	assets_common::AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocationV3>;
+
+type AssetIdForTrustBackedAssetsConvertLatest =
+	assets_common::AssetIdForTrustBackedAssetsConvertLatest<TrustBackedAssetsPalletLocation>;
 
 type RuntimeHelper = asset_test_utils::RuntimeHelper<Runtime, AllPalletsWithoutSystem>;
 
@@ -99,7 +109,7 @@ fn test_buy_and_refund_weight_in_native() {
 			let fee = WeightToFee::weight_to_fee(&weight);
 			let extra_amount = 100;
 			let ctx = XcmContext { origin: None, message_id: XcmHash::default(), topic: None };
-			let payment: MultiAsset = (native_location, fee + extra_amount).into();
+			let payment: Asset = (native_location.clone(), fee + extra_amount).into();
 
 			// init trader and buy weight.
 			let mut trader = <XcmConfig as xcm_executor::Config>::Trader::new();
@@ -108,7 +118,7 @@ fn test_buy_and_refund_weight_in_native() {
 
 			// assert.
 			let unused_amount =
-				unused_asset.fungible.get(&native_location.into()).map_or(0, |a| *a);
+				unused_asset.fungible.get(&native_location.clone().into()).map_or(0, |a| *a);
 			assert_eq!(unused_amount, extra_amount);
 			assert_eq!(Balances::total_issuance(), total_issuance);
 
@@ -144,7 +154,7 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 			let bob: AccountId = SOME_ASSET_ADMIN.into();
 			let staking_pot = CollatorSelection::account_id();
 			let asset_1: u32 = 1;
-			let native_location = TokenLocation::get();
+			let native_location = TokenLocationV3::get();
 			let asset_1_location =
 				AssetIdForTrustBackedAssetsConvert::convert_back(&asset_1).unwrap();
 			// bob's initial balance for native and `asset1` assets.
@@ -180,6 +190,8 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 			let asset_total_issuance = Assets::total_issuance(asset_1);
 			let native_total_issuance = Balances::total_issuance();
 
+			let asset_1_location_latest: Location = asset_1_location.try_into().unwrap();
+
 			// prepare input to buy weight.
 			let weight = Weight::from_parts(4_000_000_000, 0);
 			let fee = WeightToFee::weight_to_fee(&weight);
@@ -187,7 +199,7 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 				AssetConversion::get_amount_in(&fee, &pool_liquidity, &pool_liquidity).unwrap();
 			let extra_amount = 100;
 			let ctx = XcmContext { origin: None, message_id: XcmHash::default(), topic: None };
-			let payment: MultiAsset = (asset_1_location, asset_fee + extra_amount).into();
+			let payment: Asset = (asset_1_location_latest.clone(), asset_fee + extra_amount).into();
 
 			// init trader and buy weight.
 			let mut trader = <XcmConfig as xcm_executor::Config>::Trader::new();
@@ -195,8 +207,10 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 				trader.buy_weight(weight, payment.into(), &ctx).expect("Expected Ok");
 
 			// assert.
-			let unused_amount =
+			let unused_amount = unused_asset
-				unused_asset.fungible.get(&asset_1_location.into()).map_or(0, |a| *a);
+				.fungible
+				.get(&asset_1_location_latest.clone().into())
+				.map_or(0, |a| *a);
 			assert_eq!(unused_amount, extra_amount);
 			assert_eq!(Assets::total_issuance(asset_1), asset_total_issuance + asset_fee);
 
@@ -210,7 +224,7 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 
 			// refund.
 			let actual_refund = trader.refund_weight(refund_weight, &ctx).unwrap();
-			assert_eq!(actual_refund, (asset_1_location, asset_refund).into());
+			assert_eq!(actual_refund, (asset_1_location_latest, asset_refund).into());
 
 			// assert.
 			assert_eq!(Balances::balance(&staking_pot), initial_balance);
@@ -239,9 +253,15 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 		.execute_with(|| {
 			let bob: AccountId = SOME_ASSET_ADMIN.into();
 			let staking_pot = CollatorSelection::account_id();
-			let native_location = TokenLocation::get();
+			let native_location = TokenLocationV3::get();
-			let foreign_location =
+			let foreign_location = xcm::v3::Location {
-				MultiLocation { parents: 1, interior: X2(Parachain(1234), GeneralIndex(12345)) };
+				parents: 1,
+				interior: (
+					xcm::v3::Junction::Parachain(1234),
+					xcm::v3::Junction::GeneralIndex(12345),
+				)
+					.into(),
+			};
 			// bob's initial balance for native and `asset1` assets.
 			let initial_balance = 200 * UNITS;
 			// liquidity for both arms of (native, asset1) pool.
@@ -280,6 +300,8 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 			let asset_total_issuance = ForeignAssets::total_issuance(foreign_location);
 			let native_total_issuance = Balances::total_issuance();
 
+			let foreign_location_latest: Location = foreign_location.try_into().unwrap();
+
 			// prepare input to buy weight.
 			let weight = Weight::from_parts(4_000_000_000, 0);
 			let fee = WeightToFee::weight_to_fee(&weight);
@@ -287,7 +309,7 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 				AssetConversion::get_amount_in(&fee, &pool_liquidity, &pool_liquidity).unwrap();
 			let extra_amount = 100;
 			let ctx = XcmContext { origin: None, message_id: XcmHash::default(), topic: None };
-			let payment: MultiAsset = (foreign_location, asset_fee + extra_amount).into();
+			let payment: Asset = (foreign_location_latest.clone(), asset_fee + extra_amount).into();
 
 			// init trader and buy weight.
 			let mut trader = <XcmConfig as xcm_executor::Config>::Trader::new();
@@ -295,8 +317,10 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 				trader.buy_weight(weight, payment.into(), &ctx).expect("Expected Ok");
 
 			// assert.
-			let unused_amount =
+			let unused_amount = unused_asset
-				unused_asset.fungible.get(&foreign_location.into()).map_or(0, |a| *a);
+				.fungible
+				.get(&foreign_location_latest.clone().into())
+				.map_or(0, |a| *a);
 			assert_eq!(unused_amount, extra_amount);
 			assert_eq!(
 				ForeignAssets::total_issuance(foreign_location),
@@ -313,7 +337,7 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 
 			// refund.
 			let actual_refund = trader.refund_weight(refund_weight, &ctx).unwrap();
-			assert_eq!(actual_refund, (foreign_location, asset_refund).into());
+			assert_eq!(actual_refund, (foreign_location_latest, asset_refund).into());
 
 			// assert.
 			assert_eq!(Balances::balance(&staking_pot), initial_balance);
@@ -343,19 +367,21 @@ fn test_assets_balances_api_works() {
 		.build()
 		.execute_with(|| {
 			let local_asset_id = 1;
-			let foreign_asset_id_multilocation =
+			let foreign_asset_id_location = xcm::v3::Location::new(
-				MultiLocation { parents: 1, interior: X2(Parachain(1234), GeneralIndex(12345)) };
+				1,
+				[xcm::v3::Junction::Parachain(1234), xcm::v3::Junction::GeneralIndex(12345)],
+			);
 
 			// check before
 			assert_eq!(Assets::balance(local_asset_id, AccountId::from(ALICE)), 0);
 			assert_eq!(
-				ForeignAssets::balance(foreign_asset_id_multilocation, AccountId::from(ALICE)),
+				ForeignAssets::balance(foreign_asset_id_location, AccountId::from(ALICE)),
 				0
 			);
 			assert_eq!(Balances::free_balance(AccountId::from(ALICE)), 0);
 			assert!(Runtime::query_account_balances(AccountId::from(ALICE))
 				.unwrap()
-				.try_as::<MultiAssets>()
+				.try_as::<XcmAssets>()
 				.unwrap()
 				.is_none());
 
@@ -386,7 +412,7 @@ fn test_assets_balances_api_works() {
 			let foreign_asset_minimum_asset_balance = 3333333_u128;
 			assert_ok!(ForeignAssets::force_create(
 				RuntimeHelper::root_origin(),
-				foreign_asset_id_multilocation,
+				foreign_asset_id_location,
 				AccountId::from(SOME_ASSET_ADMIN).into(),
 				false,
 				foreign_asset_minimum_asset_balance
@@ -395,7 +421,7 @@ fn test_assets_balances_api_works() {
 			// We first mint enough asset for the account to exist for assets
 			assert_ok!(ForeignAssets::mint(
 				RuntimeHelper::origin_of(AccountId::from(SOME_ASSET_ADMIN)),
-				foreign_asset_id_multilocation,
+				foreign_asset_id_location,
 				AccountId::from(ALICE).into(),
 				6 * foreign_asset_minimum_asset_balance
 			));
@@ -406,12 +432,12 @@ fn test_assets_balances_api_works() {
 				minimum_asset_balance
 			);
 			assert_eq!(
-				ForeignAssets::balance(foreign_asset_id_multilocation, AccountId::from(ALICE)),
+				ForeignAssets::balance(foreign_asset_id_location, AccountId::from(ALICE)),
 				6 * minimum_asset_balance
 			);
 			assert_eq!(Balances::free_balance(AccountId::from(ALICE)), some_currency);
 
-			let result: MultiAssets = Runtime::query_account_balances(AccountId::from(ALICE))
+			let result: XcmAssets = Runtime::query_account_balances(AccountId::from(ALICE))
 				.unwrap()
 				.try_into()
 				.unwrap();
@@ -426,13 +452,13 @@ fn test_assets_balances_api_works() {
 			)));
 			// check trusted asset
 			assert!(result.inner().iter().any(|asset| asset.eq(&(
-				AssetIdForTrustBackedAssetsConvert::convert_back(&local_asset_id).unwrap(),
+				AssetIdForTrustBackedAssetsConvertLatest::convert_back(&local_asset_id).unwrap(),
 				minimum_asset_balance
 			)
 				.into())));
 			// check foreign asset
 			assert!(result.inner().iter().any(|asset| asset.eq(&(
-				Identity::convert_back(&foreign_asset_id_multilocation).unwrap(),
+				V4V3LocationConverter::convert_back(&foreign_asset_id_location).unwrap(),
 				6 * foreign_asset_minimum_asset_balance
 			)
 				.into())));
@@ -503,7 +529,7 @@ asset_test_utils::include_asset_transactor_transfer_with_pallet_assets_instance_
 	XcmConfig,
 	TrustBackedAssetsInstance,
 	AssetIdForTrustBackedAssets,
-	AssetIdForTrustBackedAssetsConvert,
+	AssetIdForTrustBackedAssetsConvertLatest,
 	collator_session_keys(),
 	ExistentialDeposit::get(),
 	12345,
@@ -520,11 +546,14 @@ asset_test_utils::include_asset_transactor_transfer_with_pallet_assets_instance_
 	Runtime,
 	XcmConfig,
 	ForeignAssetsInstance,
-	MultiLocation,
+	xcm::v3::Location,
 	JustTry,
 	collator_session_keys(),
 	ExistentialDeposit::get(),
-	MultiLocation { parents: 1, interior: X2(Parachain(1313), GeneralIndex(12345)) },
+	xcm::v3::Location::new(
+		1,
+		[xcm::v3::Junction::Parachain(1313), xcm::v3::Junction::GeneralIndex(12345)]
+	),
 	Box::new(|| {
 		assert!(Assets::asset_ids().collect::<Vec<_>>().is_empty());
 	}),
@@ -539,8 +568,8 @@ asset_test_utils::include_create_and_manage_foreign_assets_for_local_consensus_p
 	WeightToFee,
 	ForeignCreatorsSovereignAccountOf,
 	ForeignAssetsInstance,
-	MultiLocation,
+	xcm::v3::Location,
-	JustTry,
+	V4V3LocationConverter,
 	collator_session_keys(),
 	ExistentialDeposit::get(),
 	AssetDeposit::get(),
@@ -637,12 +666,12 @@ mod asset_hub_rococo_tests {
 			AccountId::from([73; 32]),
 			AccountId::from(BLOCK_AUTHOR_ACCOUNT),
 			// receiving WNDs
-			(MultiLocation { parents: 2, interior: X1(GlobalConsensus(Westend)) }, 1000000000000, 1_000_000_000),
+			(xcm::v3::Location::new(2, [xcm::v3::Junction::GlobalConsensus(xcm::v3::NetworkId::Westend)]), 1000000000000, 1_000_000_000),
 			bridging_to_asset_hub_westend,
 			(
-				X1(PalletInstance(bp_bridge_hub_rococo::WITH_BRIDGE_ROCOCO_TO_WESTEND_MESSAGES_PALLET_INDEX)),
+				[PalletInstance(bp_bridge_hub_rococo::WITH_BRIDGE_ROCOCO_TO_WESTEND_MESSAGES_PALLET_INDEX)].into(),
 				GlobalConsensus(Westend),
-				X1(Parachain(1000))
+				[Parachain(1000)].into()
 			)
 		)
 	}

cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs

@@ -76,21 +76,25 @@ use sp_std::prelude::*;
 #[cfg(feature = "std")]
 use sp_version::NativeVersion;
 use sp_version::RuntimeVersion;
-use xcm::opaque::v3::MultiLocation;
 use xcm_config::{
 	ForeignAssetsConvertedConcreteId, PoolAssetsConvertedConcreteId,
-	TrustBackedAssetsConvertedConcreteId, TrustBackedAssetsPalletLocation, WestendLocation,
+	TrustBackedAssetsConvertedConcreteId, TrustBackedAssetsPalletLocationV3, WestendLocation,
-	XcmOriginToTransactDispatchOrigin,
+	WestendLocationV3, XcmOriginToTransactDispatchOrigin,
 };
 
 #[cfg(any(feature = "std", test))]
 pub use sp_runtime::BuildStorage;
 
-use assets_common::{
+use assets_common::{foreign_creators::ForeignCreators, matching::FromSiblingParachain};
-	foreign_creators::ForeignCreators, matching::FromSiblingParachain, MultiLocationForAssetId,
-};
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
-use xcm::latest::prelude::*;
+// We exclude `Assets` since it's the name of a pallet
+use xcm::latest::prelude::AssetId;
+
+#[cfg(feature = "runtime-benchmarks")]
+use xcm::latest::prelude::{
+	Asset, Fungible, Here, InteriorLocation, Junction, Junction::*, Location, NetworkId,
+	NonFungible, Parent, ParentThen, Response, XCM_VERSION,
+};
 
 use crate::xcm_config::ForeignCreatorsSovereignAccountOf;
 use weights::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight};
@@ -300,10 +304,11 @@ pub type LocalAndForeignAssets = fungibles::UnionOf<
 	Assets,
 	ForeignAssets,
 	LocalFromLeft<
-		AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation>,
+		AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocationV3>,
 		AssetIdForTrustBackedAssets,
+		xcm::v3::Location,
 	>,
-	MultiLocation,
+	xcm::v3::Location,
 	AccountId,
 >;
 
@@ -311,8 +316,8 @@ pub type LocalAndForeignAssets = fungibles::UnionOf<
 pub type NativeAndAssets = fungible::UnionOf<
 	Balances,
 	LocalAndForeignAssets,
-	TargetFromLeft<WestendLocation>,
+	TargetFromLeft<WestendLocationV3, xcm::v3::Location>,
-	MultiLocation,
+	xcm::v3::Location,
 	AccountId,
 >;
 
@@ -320,15 +325,15 @@ impl pallet_asset_conversion::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type Balance = Balance;
 	type HigherPrecisionBalance = sp_core::U256;
-	type AssetKind = MultiLocation;
+	type AssetKind = xcm::v3::Location;
 	type Assets = NativeAndAssets;
 	type PoolId = (Self::AssetKind, Self::AssetKind);
 	type PoolLocator =
-		pallet_asset_conversion::WithFirstAsset<WestendLocation, AccountId, Self::AssetKind>;
+		pallet_asset_conversion::WithFirstAsset<WestendLocationV3, AccountId, Self::AssetKind>;
 	type PoolAssetId = u32;
 	type PoolAssets = PoolAssets;
 	type PoolSetupFee = ConstU128<0>; // Asset class deposit fees are sufficient to prevent spam
-	type PoolSetupFeeAsset = WestendLocation;
+	type PoolSetupFeeAsset = WestendLocationV3;
 	type PoolSetupFeeTarget = ResolveAssetTo<AssetConversionOrigin, Self::Assets>;
 	type LiquidityWithdrawalFee = LiquidityWithdrawalFee;
 	type LPFee = ConstU32<3>;
@@ -338,9 +343,10 @@ impl pallet_asset_conversion::Config for Runtime {
 	type WeightInfo = weights::pallet_asset_conversion::WeightInfo<Runtime>;
 	#[cfg(feature = "runtime-benchmarks")]
 	type BenchmarkHelper = assets_common::benchmarks::AssetPairFactory<
-		WestendLocation,
+		WestendLocationV3,
 		parachain_info::Pallet<Runtime>,
-		xcm_config::AssetsPalletIndex,
+		xcm_config::TrustBackedAssetsPalletIndex,
+		xcm::v3::Location,
 	>;
 }
 
@@ -362,13 +368,14 @@ pub type ForeignAssetsInstance = pallet_assets::Instance2;
 impl pallet_assets::Config<ForeignAssetsInstance> for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type Balance = Balance;
-	type AssetId = MultiLocationForAssetId;
+	type AssetId = xcm::v3::Location;
-	type AssetIdParameter = MultiLocationForAssetId;
+	type AssetIdParameter = xcm::v3::Location;
 	type Currency = Balances;
 	type CreateOrigin = ForeignCreators<
-		(FromSiblingParachain<parachain_info::Pallet<Runtime>>,),
+		FromSiblingParachain<parachain_info::Pallet<Runtime>, xcm::v3::Location>,
 		ForeignCreatorsSovereignAccountOf,
 		AccountId,
+		xcm::v3::Location,
 	>;
 	type ForceOrigin = AssetsForceOrigin;
 	type AssetDeposit = ForeignAssetsAssetDeposit;
@@ -644,7 +651,7 @@ impl cumulus_pallet_aura_ext::Config for Runtime {}
 
 parameter_types! {
 	/// The asset ID for the asset that we use to pay for message delivery fees.
-	pub FeeAssetId: AssetId = Concrete(xcm_config::WestendLocation::get());
+	pub FeeAssetId: AssetId = AssetId(xcm_config::WestendLocation::get());
 	/// The base fee for the message delivery fees.
 	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
 }
@@ -728,7 +735,7 @@ impl pallet_asset_conversion_tx_payment::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type Fungibles = LocalAndForeignAssets;
 	type OnChargeAssetTransaction =
-		AssetConversionAdapter<Balances, AssetConversion, WestendLocation>;
+		AssetConversionAdapter<Balances, AssetConversion, WestendLocationV3>;
 }
 
 parameter_types! {
@@ -1229,18 +1236,18 @@ impl_runtime_apis! {
 	impl pallet_asset_conversion::AssetConversionApi<
 		Block,
 		Balance,
-		MultiLocation,
+		xcm::v3::Location,
 	> for Runtime
 	{
-		fn quote_price_exact_tokens_for_tokens(asset1: MultiLocation, asset2: MultiLocation, amount: Balance, include_fee: bool) -> Option<Balance> {
+		fn quote_price_exact_tokens_for_tokens(asset1: xcm::v3::Location, asset2: xcm::v3::Location, amount: Balance, include_fee: bool) -> Option<Balance> {
 			AssetConversion::quote_price_exact_tokens_for_tokens(asset1, asset2, amount, include_fee)
 		}
 
-		fn quote_price_tokens_for_exact_tokens(asset1: MultiLocation, asset2: MultiLocation, amount: Balance, include_fee: bool) -> Option<Balance> {
+		fn quote_price_tokens_for_exact_tokens(asset1: xcm::v3::Location, asset2: xcm::v3::Location, amount: Balance, include_fee: bool) -> Option<Balance> {
 			AssetConversion::quote_price_tokens_for_exact_tokens(asset1, asset2, amount, include_fee)
 		}
 
-		fn get_reserves(asset1: MultiLocation, asset2: MultiLocation) -> Option<(Balance, Balance)> {
+		fn get_reserves(asset1: xcm::v3::Location, asset2: xcm::v3::Location) -> Option<(Balance, Balance)> {
 			AssetConversion::get_reserves(asset1, asset2).ok()
 		}
 	}
@@ -1294,7 +1301,7 @@ impl_runtime_apis! {
 		AccountId,
 	> for Runtime
 	{
-		fn query_account_balances(account: AccountId) -> Result<xcm::VersionedMultiAssets, assets_common::runtime_api::FungiblesAccessError> {
+		fn query_account_balances(account: AccountId) -> Result<xcm::VersionedAssets, assets_common::runtime_api::FungiblesAccessError> {
 			use assets_common::fungible_conversion::{convert, convert_balance};
 			Ok([
 				// collect pallet_balance
@@ -1413,45 +1420,45 @@ impl_runtime_apis! {
 
 			use pallet_xcm::benchmarking::Pallet as PalletXcmExtrinsicsBenchmark;
 			impl pallet_xcm::benchmarking::Config for Runtime {
-				fn reachable_dest() -> Option<MultiLocation> {
+				fn reachable_dest() -> Option<Location> {
 					Some(Parent.into())
 				}
 
-				fn teleportable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn teleportable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Relay/native token can be teleported between AH and Relay.
 					Some((
-						MultiAsset {
+						Asset {
 							fun: Fungible(EXISTENTIAL_DEPOSIT),
-							id: Concrete(Parent.into())
+							id: AssetId(Parent.into())
 						},
 						Parent.into(),
 					))
 				}
 
-				fn reserve_transferable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn reserve_transferable_asset_and_dest() -> Option<(Asset, Location)> {
 					// AH can reserve transfer native token to some random parachain.
 					let random_para_id = 43211234;
 					ParachainSystem::open_outbound_hrmp_channel_for_benchmarks_or_tests(
 						random_para_id.into()
 					);
 					Some((
-						MultiAsset {
+						Asset {
 							fun: Fungible(EXISTENTIAL_DEPOSIT),
-							id: Concrete(Parent.into())
+							id: AssetId(Parent.into())
 						},
 						ParentThen(Parachain(random_para_id).into()).into(),
 					))
 				}
 
 				fn set_up_complex_asset_transfer(
-				) -> Option<(MultiAssets, u32, MultiLocation, Box<dyn FnOnce()>)> {
+				) -> Option<(xcm::v4::Assets, u32, Location, Box<dyn FnOnce()>)> {
 					// Transfer to Relay some local AH asset (local-reserve-transfer) while paying
 					// fees using teleported native token.
 					// (We don't care that Relay doesn't accept incoming unknown AH local asset)
 					let dest = Parent.into();
 
 					let fee_amount = EXISTENTIAL_DEPOSIT;
-					let fee_asset: MultiAsset = (MultiLocation::parent(), fee_amount).into();
+					let fee_asset: Asset = (Location::parent(), fee_amount).into();
 
 					let who = frame_benchmarking::whitelisted_caller();
 					// Give some multiple of the existential deposit
@@ -1469,13 +1476,13 @@ impl_runtime_apis! {
 						Runtime,
 						pallet_assets::Instance1
 					>(true, initial_asset_amount);
-					let asset_location = MultiLocation::new(
+					let asset_location = Location::new(
 						0,
-						X2(PalletInstance(50), GeneralIndex(u32::from(asset_id).into()))
+						[PalletInstance(50), GeneralIndex(u32::from(asset_id).into())]
 					);
-					let transfer_asset: MultiAsset = (asset_location, asset_amount).into();
+					let transfer_asset: Asset = (asset_location, asset_amount).into();
 
-					let assets: MultiAssets = vec![fee_asset.clone(), transfer_asset].into();
+					let assets: xcm::v4::Assets = vec![fee_asset.clone(), transfer_asset].into();
 					let fee_index = if assets.get(0).unwrap().eq(&fee_asset) { 0 } else { 1 };
 
 					// verify transferred successfully
@@ -1504,14 +1511,14 @@ impl_runtime_apis! {
 						xcm_config::bridging::SiblingBridgeHubParaId::get().into()
 					);
 				}
-				fn ensure_bridged_target_destination() -> Result<MultiLocation, BenchmarkError> {
+				fn ensure_bridged_target_destination() -> Result<Location, BenchmarkError> {
 					ParachainSystem::open_outbound_hrmp_channel_for_benchmarks_or_tests(
 						xcm_config::bridging::SiblingBridgeHubParaId::get().into()
 					);
 					let bridged_asset_hub = xcm_config::bridging::to_rococo::AssetHubRococo::get();
 					let _ = PolkadotXcm::force_xcm_version(
 						RuntimeOrigin::root(),
-						Box::new(bridged_asset_hub),
+						Box::new(bridged_asset_hub.clone()),
 						XCM_VERSION,
 					).map_err(|e| {
 						log::error!(
@@ -1527,12 +1534,11 @@ impl_runtime_apis! {
 				}
 			}
 
-			use xcm::latest::prelude::*;
 			use xcm_config::{MaxAssetsIntoHolding, WestendLocation};
 			use pallet_xcm_benchmarks::asset_instance_from;
 
 			parameter_types! {
-				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+				pub ExistentialDepositAsset: Option<Asset> = Some((
 					WestendLocation::get(),
 					ExistentialDeposit::get()
 				).into());
@@ -1543,33 +1549,33 @@ impl_runtime_apis! {
 				type AccountIdConverter = xcm_config::LocationToAccountId;
 				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
 					xcm_config::XcmConfig,
-					ExistentialDepositMultiAsset,
+					ExistentialDepositAsset,
 					xcm_config::PriceForParentDelivery,
 				>;
-				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
+				fn valid_destination() -> Result<Location, BenchmarkError> {
 					Ok(WestendLocation::get())
 				}
-				fn worst_case_holding(depositable_count: u32) -> MultiAssets {
+				fn worst_case_holding(depositable_count: u32) -> xcm::v4::Assets {
 					// A mix of fungible, non-fungible, and concrete assets.
 					let holding_non_fungibles = MaxAssetsIntoHolding::get() / 2 - depositable_count;
 					let holding_fungibles = holding_non_fungibles - 1;
 					let fungibles_amount: u128 = 100;
 					let mut assets = (0..holding_fungibles)
 						.map(|i| {
-							MultiAsset {
+							Asset {
-								id: Concrete(GeneralIndex(i as u128).into()),
+								id: AssetId(GeneralIndex(i as u128).into()),
 								fun: Fungible(fungibles_amount * i as u128),
 							}
 						})
-						.chain(core::iter::once(MultiAsset { id: Concrete(Here.into()), fun: Fungible(u128::MAX) }))
+						.chain(core::iter::once(Asset { id: AssetId(Here.into()), fun: Fungible(u128::MAX) }))
-						.chain((0..holding_non_fungibles).map(|i| MultiAsset {
+						.chain((0..holding_non_fungibles).map(|i| Asset {
-							id: Concrete(GeneralIndex(i as u128).into()),
+							id: AssetId(GeneralIndex(i as u128).into()),
 							fun: NonFungible(asset_instance_from(i)),
 						}))
 						.collect::<Vec<_>>();
 
-					assets.push(MultiAsset {
+					assets.push(Asset {
-						id: Concrete(WestendLocation::get()),
+						id: AssetId(WestendLocation::get()),
 						fun: Fungible(1_000_000 * UNITS),
 					});
 					assets.into()
@@ -1577,16 +1583,16 @@ impl_runtime_apis! {
 			}
 
 			parameter_types! {
-				pub const TrustedTeleporter: Option<(MultiLocation, MultiAsset)> = Some((
+				pub const TrustedTeleporter: Option<(Location, Asset)> = Some((
 					WestendLocation::get(),
-					MultiAsset { fun: Fungible(UNITS), id: Concrete(WestendLocation::get()) },
+					Asset { fun: Fungible(UNITS), id: AssetId(WestendLocation::get()) },
 				));
 				pub const CheckedAccount: Option<(AccountId, xcm_builder::MintLocation)> = None;
 				// AssetHubWestend trusts AssetHubRococo as reserve for ROCs
-				pub TrustedReserve: Option<(MultiLocation, MultiAsset)> = Some(
+				pub TrustedReserve: Option<(Location, Asset)> = Some(
 					(
 						xcm_config::bridging::to_rococo::AssetHubRococo::get(),
-						MultiAsset::from((xcm_config::bridging::to_rococo::RocLocation::get(), 1000000000000 as u128))
+						Asset::from((xcm_config::bridging::to_rococo::RocLocation::get(), 1000000000000 as u128))
 					)
 				);
 			}
@@ -1598,9 +1604,9 @@ impl_runtime_apis! {
 				type TrustedTeleporter = TrustedTeleporter;
 				type TrustedReserve = TrustedReserve;
 
-				fn get_multi_asset() -> MultiAsset {
+				fn get_asset() -> Asset {
-					MultiAsset {
+					Asset {
-						id: Concrete(WestendLocation::get()),
+						id: AssetId(WestendLocation::get()),
 						fun: Fungible(UNITS),
 					}
 				}
@@ -1614,42 +1620,42 @@ impl_runtime_apis! {
 					(0u64, Response::Version(Default::default()))
 				}
 
-				fn worst_case_asset_exchange() -> Result<(MultiAssets, MultiAssets), BenchmarkError> {
+				fn worst_case_asset_exchange() -> Result<(xcm::v4::Assets, xcm::v4::Assets), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn universal_alias() -> Result<(MultiLocation, Junction), BenchmarkError> {
+				fn universal_alias() -> Result<(Location, Junction), BenchmarkError> {
 					match xcm_config::bridging::BridgingBenchmarksHelper::prepare_universal_alias() {
 						Some(alias) => Ok(alias),
 						None => Err(BenchmarkError::Skip)
 					}
 				}
 
-				fn transact_origin_and_runtime_call() -> Result<(MultiLocation, RuntimeCall), BenchmarkError> {
+				fn transact_origin_and_runtime_call() -> Result<(Location, RuntimeCall), BenchmarkError> {
 					Ok((WestendLocation::get(), frame_system::Call::remark_with_event { remark: vec![] }.into()))
 				}
 
-				fn subscribe_origin() -> Result<MultiLocation, BenchmarkError> {
+				fn subscribe_origin() -> Result<Location, BenchmarkError> {
 					Ok(WestendLocation::get())
 				}
 
-				fn claimable_asset() -> Result<(MultiLocation, MultiLocation, MultiAssets), BenchmarkError> {
+				fn claimable_asset() -> Result<(Location, Location, xcm::v4::Assets), BenchmarkError> {
 					let origin = WestendLocation::get();
-					let assets: MultiAssets = (Concrete(WestendLocation::get()), 1_000 * UNITS).into();
+					let assets: xcm::v4::Assets = (AssetId(WestendLocation::get()), 1_000 * UNITS).into();
-					let ticket = MultiLocation { parents: 0, interior: Here };
+					let ticket = Location { parents: 0, interior: Here };
 					Ok((origin, ticket, assets))
 				}
 
-				fn unlockable_asset() -> Result<(MultiLocation, MultiLocation, MultiAsset), BenchmarkError> {
+				fn unlockable_asset() -> Result<(Location, Location, Asset), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
 				fn export_message_origin_and_destination(
-				) -> Result<(MultiLocation, NetworkId, InteriorMultiLocation), BenchmarkError> {
+				) -> Result<(Location, NetworkId, InteriorLocation), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn alias_origin() -> Result<(MultiLocation, MultiLocation), BenchmarkError> {
+				fn alias_origin() -> Result<(Location, Location), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 			}

cumulus/parachains/runtimes/assets/asset-hub-westend/src/weights/xcm/mod.rs

@@ -23,14 +23,14 @@ use pallet_xcm_benchmarks_generic::WeightInfo as XcmGeneric;
 use sp_std::prelude::*;
 use xcm::{latest::prelude::*, DoubleEncoded};
 
-trait WeighMultiAssets {
+trait WeighAssets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight;
+	fn weigh_assets(&self, weight: Weight) -> Weight;
 }
 
 const MAX_ASSETS: u64 = 100;
 
-impl WeighMultiAssets for MultiAssetFilter {
+impl WeighAssets for AssetFilter {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		match self {
 			Self::Definite(assets) => weight.saturating_mul(assets.inner().iter().count() as u64),
 			Self::Wild(asset) => match asset {
@@ -49,40 +49,36 @@ impl WeighMultiAssets for MultiAssetFilter {
 	}
 }
 
-impl WeighMultiAssets for MultiAssets {
+impl WeighAssets for Assets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		weight.saturating_mul(self.inner().iter().count() as u64)
 	}
 }
 
 pub struct AssetHubWestendXcmWeight<Call>(core::marker::PhantomData<Call>);
 impl<Call> XcmWeightInfo<Call> for AssetHubWestendXcmWeight<Call> {
-	fn withdraw_asset(assets: &MultiAssets) -> Weight {
+	fn withdraw_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
 	}
-	fn reserve_asset_deposited(assets: &MultiAssets) -> Weight {
+	fn reserve_asset_deposited(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
 	}
-	fn receive_teleported_asset(assets: &MultiAssets) -> Weight {
+	fn receive_teleported_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
 	}
 	fn query_response(
 		_query_id: &u64,
 		_response: &Response,
 		_max_weight: &Weight,
-		_querier: &Option<MultiLocation>,
+		_querier: &Option<Location>,
 	) -> Weight {
 		XcmGeneric::<Runtime>::query_response()
 	}
-	fn transfer_asset(assets: &MultiAssets, _dest: &MultiLocation) -> Weight {
+	fn transfer_asset(assets: &Assets, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
 	}
-	fn transfer_reserve_asset(
+	fn transfer_reserve_asset(assets: &Assets, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssets,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
 	}
 	fn transact(
 		_origin_type: &OriginKind,
@@ -110,44 +106,36 @@ impl<Call> XcmWeightInfo<Call> for AssetHubWestendXcmWeight<Call> {
 	fn clear_origin() -> Weight {
 		XcmGeneric::<Runtime>::clear_origin()
 	}
-	fn descend_origin(_who: &InteriorMultiLocation) -> Weight {
+	fn descend_origin(_who: &InteriorLocation) -> Weight {
 		XcmGeneric::<Runtime>::descend_origin()
 	}
 	fn report_error(_query_response_info: &QueryResponseInfo) -> Weight {
 		XcmGeneric::<Runtime>::report_error()
 	}
 
-	fn deposit_asset(assets: &MultiAssetFilter, _dest: &MultiLocation) -> Weight {
+	fn deposit_asset(assets: &AssetFilter, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
 	}
-	fn deposit_reserve_asset(
+	fn deposit_reserve_asset(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
 	}
-	fn exchange_asset(_give: &MultiAssetFilter, _receive: &MultiAssets, _maximal: &bool) -> Weight {
+	fn exchange_asset(_give: &AssetFilter, _receive: &Assets, _maximal: &bool) -> Weight {
 		Weight::MAX
 	}
 	fn initiate_reserve_withdraw(
-		assets: &MultiAssetFilter,
+		assets: &AssetFilter,
-		_reserve: &MultiLocation,
+		_reserve: &Location,
 		_xcm: &Xcm<()>,
 	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
 	}
-	fn initiate_teleport(
+	fn initiate_teleport(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
 	}
-	fn report_holding(_response_info: &QueryResponseInfo, _assets: &MultiAssetFilter) -> Weight {
+	fn report_holding(_response_info: &QueryResponseInfo, _assets: &AssetFilter) -> Weight {
 		XcmGeneric::<Runtime>::report_holding()
 	}
-	fn buy_execution(_fees: &MultiAsset, _weight_limit: &WeightLimit) -> Weight {
+	fn buy_execution(_fees: &Asset, _weight_limit: &WeightLimit) -> Weight {
 		XcmGeneric::<Runtime>::buy_execution()
 	}
 	fn refund_surplus() -> Weight {
@@ -162,7 +150,7 @@ impl<Call> XcmWeightInfo<Call> for AssetHubWestendXcmWeight<Call> {
 	fn clear_error() -> Weight {
 		XcmGeneric::<Runtime>::clear_error()
 	}
-	fn claim_asset(_assets: &MultiAssets, _ticket: &MultiLocation) -> Weight {
+	fn claim_asset(_assets: &Assets, _ticket: &Location) -> Weight {
 		XcmGeneric::<Runtime>::claim_asset()
 	}
 	fn trap(_code: &u64) -> Weight {
@@ -174,13 +162,13 @@ impl<Call> XcmWeightInfo<Call> for AssetHubWestendXcmWeight<Call> {
 	fn unsubscribe_version() -> Weight {
 		XcmGeneric::<Runtime>::unsubscribe_version()
 	}
-	fn burn_asset(assets: &MultiAssets) -> Weight {
+	fn burn_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::burn_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::burn_asset())
 	}
-	fn expect_asset(assets: &MultiAssets) -> Weight {
+	fn expect_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::expect_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::expect_asset())
 	}
-	fn expect_origin(_origin: &Option<MultiLocation>) -> Weight {
+	fn expect_origin(_origin: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::expect_origin()
 	}
 	fn expect_error(_error: &Option<(u32, XcmError)>) -> Weight {
@@ -213,16 +201,16 @@ impl<Call> XcmWeightInfo<Call> for AssetHubWestendXcmWeight<Call> {
 	fn export_message(_: &NetworkId, _: &Junctions, _: &Xcm<()>) -> Weight {
 		Weight::MAX
 	}
-	fn lock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn lock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn unlock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn unlock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn note_unlockable(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn note_unlockable(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn request_unlock(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn request_unlock(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
 	fn set_fees_mode(_: &bool) -> Weight {
@@ -234,11 +222,11 @@ impl<Call> XcmWeightInfo<Call> for AssetHubWestendXcmWeight<Call> {
 	fn clear_topic() -> Weight {
 		XcmGeneric::<Runtime>::clear_topic()
 	}
-	fn alias_origin(_: &MultiLocation) -> Weight {
+	fn alias_origin(_: &Location) -> Weight {
 		// XCM Executor does not currently support alias origin operations
 		Weight::MAX
 	}
-	fn unpaid_execution(_: &WeightLimit, _: &Option<MultiLocation>) -> Weight {
+	fn unpaid_execution(_: &WeightLimit, _: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::unpaid_execution()
 	}
 }

cumulus/parachains/runtimes/assets/asset-hub-westend/src/xcm_config.rs

@@ -20,12 +20,12 @@ use super::{
 	ToRococoXcmRouter, TransactionByteFee, TrustBackedAssetsInstance, WeightToFee, XcmpQueue,
 };
 use assets_common::{
-	local_and_foreign_assets::MatchesLocalAndForeignAssetsMultiLocation,
+	local_and_foreign_assets::MatchesLocalAndForeignAssetsLocation,
 	matching::{FromSiblingParachain, IsForeignConcreteAsset},
-	TrustBackedAssetsAsMultiLocation,
+	TrustBackedAssetsAsLocation,
 };
 use frame_support::{
-	match_types, parameter_types,
+	parameter_types,
 	traits::{
 		tokens::imbalance::ResolveAssetTo, ConstU32, Contains, Equals, Everything, Nothing,
 		PalletInfoAccess,
@@ -61,25 +61,31 @@ use xcm_builder::{
 use xcm_executor::{traits::WithOriginFilter, XcmExecutor};
 
 parameter_types! {
-	pub const WestendLocation: MultiLocation = MultiLocation::parent();
+	pub const WestendLocation: Location = Location::parent();
+	pub const WestendLocationV3: xcm::v3::Location = xcm::v3::Location::parent();
 	pub const RelayNetwork: Option<NetworkId> = Some(NetworkId::Westend);
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
-	pub UniversalLocation: InteriorMultiLocation =
+	pub UniversalLocation: InteriorLocation =
-		X2(GlobalConsensus(RelayNetwork::get().unwrap()), Parachain(ParachainInfo::parachain_id().into()));
+		[GlobalConsensus(RelayNetwork::get().unwrap()), Parachain(ParachainInfo::parachain_id().into())].into();
 	pub UniversalLocationNetworkId: NetworkId = UniversalLocation::get().global_consensus().unwrap();
-	pub AssetsPalletIndex: u32 = <Assets as PalletInfoAccess>::index() as u32;
+	pub TrustBackedAssetsPalletLocation: Location =
-	pub TrustBackedAssetsPalletLocation: MultiLocation = PalletInstance(AssetsPalletIndex::get() as u8).into();
+		PalletInstance(TrustBackedAssetsPalletIndex::get()).into();
-	pub ForeignAssetsPalletLocation: MultiLocation =
+	pub TrustBackedAssetsPalletIndex: u8 = <Assets as PalletInfoAccess>::index() as u8;
+	pub TrustBackedAssetsPalletLocationV3: xcm::v3::Location =
+		xcm::v3::Junction::PalletInstance(<Assets as PalletInfoAccess>::index() as u8).into();
+	pub ForeignAssetsPalletLocation: Location =
 		PalletInstance(<ForeignAssets as PalletInfoAccess>::index() as u8).into();
-	pub PoolAssetsPalletLocation: MultiLocation =
+	pub PoolAssetsPalletLocation: Location =
 		PalletInstance(<PoolAssets as PalletInfoAccess>::index() as u8).into();
+	pub PoolAssetsPalletLocationV3: xcm::v3::Location =
+		xcm::v3::Junction::PalletInstance(<PoolAssets as PalletInfoAccess>::index() as u8).into();
 	pub CheckingAccount: AccountId = PolkadotXcm::check_account();
 	pub StakingPot: AccountId = CollatorSelection::account_id();
 	pub TreasuryAccount: AccountId = TREASURY_PALLET_ID.into_account_truncating();
-	pub RelayTreasuryLocation: MultiLocation = (Parent, PalletInstance(westend_runtime_constants::TREASURY_PALLET_ID)).into();
+	pub RelayTreasuryLocation: Location = (Parent, PalletInstance(westend_runtime_constants::TREASURY_PALLET_ID)).into();
 }
 
-/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
+/// Type for specifying how a `Location` can be converted into an `AccountId`. This is used
 /// when determining ownership of accounts for asset transacting and when attempting to use XCM
 /// `Transact` in order to determine the dispatch Origin.
 pub type LocationToAccountId = (
@@ -104,7 +110,7 @@ pub type CurrencyTransactor = CurrencyAdapter<
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	IsConcrete<WestendLocation>,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -122,7 +128,7 @@ pub type FungiblesTransactor = FungiblesAdapter<
 	Assets,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	TrustBackedAssetsConvertedConcreteId,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -139,8 +145,8 @@ pub type ForeignAssetsConvertedConcreteId = assets_common::ForeignAssetsConverte
 		// Ignore `TrustBackedAssets` explicitly
 		StartsWith<TrustBackedAssetsPalletLocation>,
 		// Ignore asset which starts explicitly with our `GlobalConsensus(NetworkId)`, means:
-		// - foreign assets from our consensus should be: `MultiLocation {parents: 1,
+		// - foreign assets from our consensus should be: `Location {parents: 1, X*(Parachain(xyz),
-		//   X*(Parachain(xyz), ..)}
+		//   ..)}
 		// - foreign assets outside our consensus with the same `GlobalConsensus(NetworkId)` wont
 		//   be accepted here
 		StartsWithExplicitGlobalConsensus<UniversalLocationNetworkId>,
@@ -154,7 +160,7 @@ pub type ForeignFungiblesTransactor = FungiblesAdapter<
 	ForeignAssets,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	ForeignAssetsConvertedConcreteId,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -174,7 +180,7 @@ pub type PoolFungiblesTransactor = FungiblesAdapter<
 	PoolAssets,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	PoolAssetsConvertedConcreteId,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -189,21 +195,33 @@ pub type PoolFungiblesTransactor = FungiblesAdapter<
 pub type AssetTransactors =
 	(CurrencyTransactor, FungiblesTransactor, ForeignFungiblesTransactor, PoolFungiblesTransactor);
 
-/// Simple `MultiLocation` matcher for Local and Foreign asset `MultiLocation`.
+/// Simple `Location` matcher for Local and Foreign asset `Location`.
-pub struct LocalAndForeignAssetsMultiLocationMatcher;
+pub struct LocalAndForeignAssetsLocationMatcher;
-impl MatchesLocalAndForeignAssetsMultiLocation for LocalAndForeignAssetsMultiLocationMatcher {
+impl MatchesLocalAndForeignAssetsLocation<xcm::v3::Location>
-	fn is_local(location: &MultiLocation) -> bool {
+	for LocalAndForeignAssetsLocationMatcher
-		use assets_common::fungible_conversion::MatchesMultiLocation;
+{
-		TrustBackedAssetsConvertedConcreteId::contains(location)
+	fn is_local(location: &xcm::v3::Location) -> bool {
+		use assets_common::fungible_conversion::MatchesLocation;
+		let latest_location: Location = if let Ok(location) = (*location).try_into() {
+			location
+		} else {
+			return false;
+		};
+		TrustBackedAssetsConvertedConcreteId::contains(&latest_location)
 	}
 
-	fn is_foreign(location: &MultiLocation) -> bool {
+	fn is_foreign(location: &xcm::v3::Location) -> bool {
-		use assets_common::fungible_conversion::MatchesMultiLocation;
+		use assets_common::fungible_conversion::MatchesLocation;
-		ForeignAssetsConvertedConcreteId::contains(location)
+		let latest_location: Location = if let Ok(location) = (*location).try_into() {
+			location
+		} else {
+			return false;
+		};
+		ForeignAssetsConvertedConcreteId::contains(&latest_location)
 	}
 }
-impl Contains<MultiLocation> for LocalAndForeignAssetsMultiLocationMatcher {
+impl Contains<xcm::v3::Location> for LocalAndForeignAssetsLocationMatcher {
-	fn contains(location: &MultiLocation) -> bool {
+	fn contains(location: &xcm::v3::Location) -> bool {
 		Self::is_local(location) || Self::is_foreign(location)
 	}
 }
@@ -238,23 +256,30 @@ parameter_types! {
 	pub XcmAssetFeesReceiver: Option<AccountId> = Authorship::author();
 }
 
-match_types! {
+pub struct ParentOrParentsPlurality;
-	pub type ParentOrParentsPlurality: impl Contains<MultiLocation> = {
+impl Contains<Location> for ParentOrParentsPlurality {
-		MultiLocation { parents: 1, interior: Here } |
+	fn contains(location: &Location) -> bool {
-		MultiLocation { parents: 1, interior: X1(Plurality { .. }) }
+		matches!(location.unpack(), (1, []) | (1, [Plurality { .. }]))
-	};
+	}
-	pub type FellowshipEntities: impl Contains<MultiLocation> = {
+}
-		// Fellowship Plurality
+
-		MultiLocation { parents: 1, interior: X2(Parachain(1001), Plurality { id: BodyId::Technical, ..}) } |
+pub struct FellowshipEntities;
-		// Fellowship Salary Pallet
+impl Contains<Location> for FellowshipEntities {
-		MultiLocation { parents: 1, interior: X2(Parachain(1001), PalletInstance(64)) } |
+	fn contains(location: &Location) -> bool {
-		// Fellowship Treasury Pallet
+		matches!(
-		MultiLocation { parents: 1, interior: X2(Parachain(1001), PalletInstance(65)) }
+			location.unpack(),
-	};
+			(1, [Parachain(1001), Plurality { id: BodyId::Technical, .. }]) |
-	pub type AmbassadorEntities: impl Contains<MultiLocation> = {
+				(1, [Parachain(1001), PalletInstance(64)]) |
-		// Ambassador Salary Pallet
+				(1, [Parachain(1001), PalletInstance(65)])
-		MultiLocation { parents: 1, interior: X2(Parachain(1001), PalletInstance(74)) }
+		)
-	};
+	}
+}
+
+pub struct AmbassadorEntities;
+impl Contains<Location> for AmbassadorEntities {
+	fn contains(location: &Location) -> bool {
+		matches!(location.unpack(), (1, [Parachain(1001), PalletInstance(74)]))
+	}
 }
 
 /// A call filter for the XCM Transact instruction. This is a temporary measure until we properly
@@ -573,12 +598,12 @@ impl xcm_executor::Config for XcmConfig {
 	type Trader = (
 		UsingComponents<WeightToFee, WestendLocation, AccountId, Balances, ToStakingPot<Runtime>>,
 		cumulus_primitives_utility::SwapFirstAssetTrader<
-			WestendLocation,
+			WestendLocationV3,
 			crate::AssetConversion,
 			WeightToFee,
 			crate::NativeAndAssets,
 			(
-				TrustBackedAssetsAsMultiLocation<TrustBackedAssetsPalletLocation, Balance>,
+				TrustBackedAssetsAsLocation<TrustBackedAssetsPalletLocation, Balance>,
 				ForeignAssetsConvertedConcreteId,
 			),
 			ResolveAssetTo<StakingPot, crate::NativeAndAssets>,
@@ -671,9 +696,9 @@ pub type ForeignCreatorsSovereignAccountOf = (
 /// Simple conversion of `u32` into an `AssetId` for use in benchmarking.
 pub struct XcmBenchmarkHelper;
 #[cfg(feature = "runtime-benchmarks")]
-impl pallet_assets::BenchmarkHelper<MultiLocation> for XcmBenchmarkHelper {
+impl pallet_assets::BenchmarkHelper<xcm::v3::Location> for XcmBenchmarkHelper {
-	fn create_asset_id_parameter(id: u32) -> MultiLocation {
+	fn create_asset_id_parameter(id: u32) -> xcm::v3::Location {
-		MultiLocation { parents: 1, interior: X1(Parachain(id)) }
+		xcm::v3::Location::new(1, [xcm::v3::Junction::Parachain(id)])
 	}
 }
 
@@ -704,7 +729,7 @@ pub mod bridging {
 		pub storage XcmBridgeHubRouterByteFee: Balance = TransactionByteFee::get();
 
 		pub SiblingBridgeHubParaId: u32 = bp_bridge_hub_westend::BRIDGE_HUB_WESTEND_PARACHAIN_ID;
-		pub SiblingBridgeHub: MultiLocation = MultiLocation::new(1, X1(Parachain(SiblingBridgeHubParaId::get())));
+		pub SiblingBridgeHub: Location = Location::new(1, [Parachain(SiblingBridgeHubParaId::get())]);
 		/// Router expects payment with this `AssetId`.
 		/// (`AssetId` has to be aligned with `BridgeTable`)
 		pub XcmBridgeHubRouterFeeAssetId: AssetId = WestendLocation::get().into();
@@ -721,25 +746,25 @@ pub mod bridging {
 		use super::*;
 
 		parameter_types! {
-			pub SiblingBridgeHubWithBridgeHubRococoInstance: MultiLocation = MultiLocation::new(
+			pub SiblingBridgeHubWithBridgeHubRococoInstance: Location = Location::new(
 				1,
-				X2(
+				[
 					Parachain(SiblingBridgeHubParaId::get()),
 					PalletInstance(bp_bridge_hub_westend::WITH_BRIDGE_WESTEND_TO_ROCOCO_MESSAGES_PALLET_INDEX)
-				)
+				]
 			);
 
 			pub const RococoNetwork: NetworkId = NetworkId::Rococo;
-			pub AssetHubRococo: MultiLocation = MultiLocation::new(2, X2(GlobalConsensus(RococoNetwork::get()), Parachain(bp_asset_hub_rococo::ASSET_HUB_ROCOCO_PARACHAIN_ID)));
+			pub AssetHubRococo: Location = Location::new(2, [GlobalConsensus(RococoNetwork::get()), Parachain(bp_asset_hub_rococo::ASSET_HUB_ROCOCO_PARACHAIN_ID)]);
-			pub RocLocation: MultiLocation = MultiLocation::new(2, X1(GlobalConsensus(RococoNetwork::get())));
+			pub RocLocation: Location = Location::new(2, [GlobalConsensus(RococoNetwork::get())]);
 
-			pub RocFromAssetHubRococo: (MultiAssetFilter, MultiLocation) = (
+			pub RocFromAssetHubRococo: (AssetFilter, Location) = (
-				Wild(AllOf { fun: WildFungible, id: Concrete(RocLocation::get()) }),
+				Wild(AllOf { fun: WildFungible, id: AssetId(RocLocation::get()) }),
 				AssetHubRococo::get()
 			);
 
 			/// Set up exporters configuration.
-			/// `Option<MultiAsset>` represents static "base fee" which is used for total delivery fee calculation.
+			/// `Option<Asset>` represents static "base fee" which is used for total delivery fee calculation.
 			pub BridgeTable: sp_std::vec::Vec<NetworkExportTableItem> = sp_std::vec![
 				NetworkExportTableItem::new(
 					RococoNetwork::get(),
@@ -756,15 +781,15 @@ pub mod bridging {
 			];
 
 			/// Universal aliases
-			pub UniversalAliases: BTreeSet<(MultiLocation, Junction)> = BTreeSet::from_iter(
+			pub UniversalAliases: BTreeSet<(Location, Junction)> = BTreeSet::from_iter(
 				sp_std::vec![
 					(SiblingBridgeHubWithBridgeHubRococoInstance::get(), GlobalConsensus(RococoNetwork::get()))
 				]
 			);
 		}
 
-		impl Contains<(MultiLocation, Junction)> for UniversalAliases {
+		impl Contains<(Location, Junction)> for UniversalAliases {
-			fn contains(alias: &(MultiLocation, Junction)) -> bool {
+			fn contains(alias: &(Location, Junction)) -> bool {
 				UniversalAliases::get().contains(alias)
 			}
 		}
@@ -799,7 +824,7 @@ pub mod bridging {
 
 	#[cfg(feature = "runtime-benchmarks")]
 	impl BridgingBenchmarksHelper {
-		pub fn prepare_universal_alias() -> Option<(MultiLocation, Junction)> {
+		pub fn prepare_universal_alias() -> Option<(Location, Junction)> {
 			let alias =
 				to_rococo::UniversalAliases::get().into_iter().find_map(|(location, junction)| {
 					match to_rococo::SiblingBridgeHubWithBridgeHubRococoInstance::get()

cumulus/parachains/runtimes/assets/asset-hub-westend/tests/tests.rs

@@ -21,12 +21,16 @@ use asset_hub_westend_runtime::{
 	xcm_config,
 	xcm_config::{
 		bridging, ForeignCreatorsSovereignAccountOf, LocationToAccountId, WestendLocation,
+		WestendLocationV3,
 	},
 	AllPalletsWithoutSystem, MetadataDepositBase, MetadataDepositPerByte, PolkadotXcm, RuntimeCall,
 	RuntimeEvent, RuntimeOrigin, ToRococoXcmRouterInstance, XcmpQueue,
 };
 pub use asset_hub_westend_runtime::{
-	xcm_config::{CheckingAccount, TrustBackedAssetsPalletLocation, XcmConfig},
+	xcm_config::{
+		CheckingAccount, TrustBackedAssetsPalletLocation, TrustBackedAssetsPalletLocationV3,
+		XcmConfig,
+	},
 	AssetConversion, AssetDeposit, Assets, Balances, CollatorSelection, ExistentialDeposit,
 	ForeignAssets, ForeignAssetsInstance, ParachainSystem, Runtime, SessionKeys, System,
 	TrustBackedAssetsInstance,
@@ -51,14 +55,18 @@ use parachains_common::{
 };
 use sp_runtime::traits::MaybeEquivalence;
 use std::convert::Into;
-use xcm::latest::prelude::*;
+use xcm::latest::prelude::{Assets as XcmAssets, *};
-use xcm_executor::traits::{Identity, JustTry, WeightTrader};
+use xcm_builder::V4V3LocationConverter;
+use xcm_executor::traits::{JustTry, WeightTrader};
 
 const ALICE: [u8; 32] = [1u8; 32];
 const SOME_ASSET_ADMIN: [u8; 32] = [5u8; 32];
 
 type AssetIdForTrustBackedAssetsConvert =
-	assets_common::AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation>;
+	assets_common::AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocationV3>;
+
+type AssetIdForTrustBackedAssetsConvertLatest =
+	assets_common::AssetIdForTrustBackedAssetsConvertLatest<TrustBackedAssetsPalletLocation>;
 
 type RuntimeHelper = asset_test_utils::RuntimeHelper<Runtime, AllPalletsWithoutSystem>;
 
@@ -101,7 +109,7 @@ fn test_buy_and_refund_weight_in_native() {
 			let fee = WeightToFee::weight_to_fee(&weight);
 			let extra_amount = 100;
 			let ctx = XcmContext { origin: None, message_id: XcmHash::default(), topic: None };
-			let payment: MultiAsset = (native_location, fee + extra_amount).into();
+			let payment: Asset = (native_location.clone(), fee + extra_amount).into();
 
 			// init trader and buy weight.
 			let mut trader = <XcmConfig as xcm_executor::Config>::Trader::new();
@@ -110,7 +118,7 @@ fn test_buy_and_refund_weight_in_native() {
 
 			// assert.
 			let unused_amount =
-				unused_asset.fungible.get(&native_location.into()).map_or(0, |a| *a);
+				unused_asset.fungible.get(&native_location.clone().into()).map_or(0, |a| *a);
 			assert_eq!(unused_amount, extra_amount);
 			assert_eq!(Balances::total_issuance(), total_issuance);
 
@@ -146,7 +154,7 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 			let bob: AccountId = SOME_ASSET_ADMIN.into();
 			let staking_pot = CollatorSelection::account_id();
 			let asset_1: u32 = 1;
-			let native_location = WestendLocation::get();
+			let native_location = WestendLocationV3::get();
 			let asset_1_location =
 				AssetIdForTrustBackedAssetsConvert::convert_back(&asset_1).unwrap();
 			// bob's initial balance for native and `asset1` assets.
@@ -182,6 +190,8 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 			let asset_total_issuance = Assets::total_issuance(asset_1);
 			let native_total_issuance = Balances::total_issuance();
 
+			let asset_1_location_latest: Location = asset_1_location.try_into().unwrap();
+
 			// prepare input to buy weight.
 			let weight = Weight::from_parts(4_000_000_000, 0);
 			let fee = WeightToFee::weight_to_fee(&weight);
@@ -189,7 +199,7 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 				AssetConversion::get_amount_in(&fee, &pool_liquidity, &pool_liquidity).unwrap();
 			let extra_amount = 100;
 			let ctx = XcmContext { origin: None, message_id: XcmHash::default(), topic: None };
-			let payment: MultiAsset = (asset_1_location, asset_fee + extra_amount).into();
+			let payment: Asset = (asset_1_location_latest.clone(), asset_fee + extra_amount).into();
 
 			// init trader and buy weight.
 			let mut trader = <XcmConfig as xcm_executor::Config>::Trader::new();
@@ -197,8 +207,10 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 				trader.buy_weight(weight, payment.into(), &ctx).expect("Expected Ok");
 
 			// assert.
-			let unused_amount =
+			let unused_amount = unused_asset
-				unused_asset.fungible.get(&asset_1_location.into()).map_or(0, |a| *a);
+				.fungible
+				.get(&asset_1_location_latest.clone().into())
+				.map_or(0, |a| *a);
 			assert_eq!(unused_amount, extra_amount);
 			assert_eq!(Assets::total_issuance(asset_1), asset_total_issuance + asset_fee);
 
@@ -212,7 +224,7 @@ fn test_buy_and_refund_weight_with_swap_local_asset_xcm_trader() {
 
 			// refund.
 			let actual_refund = trader.refund_weight(refund_weight, &ctx).unwrap();
-			assert_eq!(actual_refund, (asset_1_location, asset_refund).into());
+			assert_eq!(actual_refund, (asset_1_location_latest, asset_refund).into());
 
 			// assert.
 			assert_eq!(Balances::balance(&staking_pot), initial_balance);
@@ -241,9 +253,15 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 		.execute_with(|| {
 			let bob: AccountId = SOME_ASSET_ADMIN.into();
 			let staking_pot = CollatorSelection::account_id();
-			let native_location = WestendLocation::get();
+			let native_location = WestendLocationV3::get();
-			let foreign_location =
+			let foreign_location = xcm::v3::Location {
-				MultiLocation { parents: 1, interior: X2(Parachain(1234), GeneralIndex(12345)) };
+				parents: 1,
+				interior: (
+					xcm::v3::Junction::Parachain(1234),
+					xcm::v3::Junction::GeneralIndex(12345),
+				)
+					.into(),
+			};
 			// bob's initial balance for native and `asset1` assets.
 			let initial_balance = 200 * UNITS;
 			// liquidity for both arms of (native, asset1) pool.
@@ -282,6 +300,8 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 			let asset_total_issuance = ForeignAssets::total_issuance(foreign_location);
 			let native_total_issuance = Balances::total_issuance();
 
+			let foreign_location_latest: Location = foreign_location.try_into().unwrap();
+
 			// prepare input to buy weight.
 			let weight = Weight::from_parts(4_000_000_000, 0);
 			let fee = WeightToFee::weight_to_fee(&weight);
@@ -289,7 +309,7 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 				AssetConversion::get_amount_in(&fee, &pool_liquidity, &pool_liquidity).unwrap();
 			let extra_amount = 100;
 			let ctx = XcmContext { origin: None, message_id: XcmHash::default(), topic: None };
-			let payment: MultiAsset = (foreign_location, asset_fee + extra_amount).into();
+			let payment: Asset = (foreign_location_latest.clone(), asset_fee + extra_amount).into();
 
 			// init trader and buy weight.
 			let mut trader = <XcmConfig as xcm_executor::Config>::Trader::new();
@@ -297,8 +317,10 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 				trader.buy_weight(weight, payment.into(), &ctx).expect("Expected Ok");
 
 			// assert.
-			let unused_amount =
+			let unused_amount = unused_asset
-				unused_asset.fungible.get(&foreign_location.into()).map_or(0, |a| *a);
+				.fungible
+				.get(&foreign_location_latest.clone().into())
+				.map_or(0, |a| *a);
 			assert_eq!(unused_amount, extra_amount);
 			assert_eq!(
 				ForeignAssets::total_issuance(foreign_location),
@@ -315,7 +337,7 @@ fn test_buy_and_refund_weight_with_swap_foreign_asset_xcm_trader() {
 
 			// refund.
 			let actual_refund = trader.refund_weight(refund_weight, &ctx).unwrap();
-			assert_eq!(actual_refund, (foreign_location, asset_refund).into());
+			assert_eq!(actual_refund, (foreign_location_latest, asset_refund).into());
 
 			// assert.
 			assert_eq!(Balances::balance(&staking_pot), initial_balance);
@@ -345,19 +367,25 @@ fn test_assets_balances_api_works() {
 		.build()
 		.execute_with(|| {
 			let local_asset_id = 1;
-			let foreign_asset_id_multilocation =
+			let foreign_asset_id_location = xcm::v3::Location {
-				MultiLocation { parents: 1, interior: X2(Parachain(1234), GeneralIndex(12345)) };
+				parents: 1,
+				interior: [
+					xcm::v3::Junction::Parachain(1234),
+					xcm::v3::Junction::GeneralIndex(12345),
+				]
+				.into(),
+			};
 
 			// check before
 			assert_eq!(Assets::balance(local_asset_id, AccountId::from(ALICE)), 0);
 			assert_eq!(
-				ForeignAssets::balance(foreign_asset_id_multilocation, AccountId::from(ALICE)),
+				ForeignAssets::balance(foreign_asset_id_location, AccountId::from(ALICE)),
 				0
 			);
 			assert_eq!(Balances::free_balance(AccountId::from(ALICE)), 0);
 			assert!(Runtime::query_account_balances(AccountId::from(ALICE))
 				.unwrap()
-				.try_as::<MultiAssets>()
+				.try_as::<XcmAssets>()
 				.unwrap()
 				.is_none());
 
@@ -388,7 +416,7 @@ fn test_assets_balances_api_works() {
 			let foreign_asset_minimum_asset_balance = 3333333_u128;
 			assert_ok!(ForeignAssets::force_create(
 				RuntimeHelper::root_origin(),
-				foreign_asset_id_multilocation,
+				foreign_asset_id_location,
 				AccountId::from(SOME_ASSET_ADMIN).into(),
 				false,
 				foreign_asset_minimum_asset_balance
@@ -397,7 +425,7 @@ fn test_assets_balances_api_works() {
 			// We first mint enough asset for the account to exist for assets
 			assert_ok!(ForeignAssets::mint(
 				RuntimeHelper::origin_of(AccountId::from(SOME_ASSET_ADMIN)),
-				foreign_asset_id_multilocation,
+				foreign_asset_id_location,
 				AccountId::from(ALICE).into(),
 				6 * foreign_asset_minimum_asset_balance
 			));
@@ -408,12 +436,12 @@ fn test_assets_balances_api_works() {
 				minimum_asset_balance
 			);
 			assert_eq!(
-				ForeignAssets::balance(foreign_asset_id_multilocation, AccountId::from(ALICE)),
+				ForeignAssets::balance(foreign_asset_id_location, AccountId::from(ALICE)),
 				6 * minimum_asset_balance
 			);
 			assert_eq!(Balances::free_balance(AccountId::from(ALICE)), some_currency);
 
-			let result: MultiAssets = Runtime::query_account_balances(AccountId::from(ALICE))
+			let result: XcmAssets = Runtime::query_account_balances(AccountId::from(ALICE))
 				.unwrap()
 				.try_into()
 				.unwrap();
@@ -428,13 +456,13 @@ fn test_assets_balances_api_works() {
 			)));
 			// check trusted asset
 			assert!(result.inner().iter().any(|asset| asset.eq(&(
-				AssetIdForTrustBackedAssetsConvert::convert_back(&local_asset_id).unwrap(),
+				AssetIdForTrustBackedAssetsConvertLatest::convert_back(&local_asset_id).unwrap(),
 				minimum_asset_balance
 			)
 				.into())));
 			// check foreign asset
 			assert!(result.inner().iter().any(|asset| asset.eq(&(
-				Identity::convert_back(&foreign_asset_id_multilocation).unwrap(),
+				V4V3LocationConverter::convert_back(&foreign_asset_id_location).unwrap(),
 				6 * foreign_asset_minimum_asset_balance
 			)
 				.into())));
@@ -505,7 +533,7 @@ asset_test_utils::include_asset_transactor_transfer_with_pallet_assets_instance_
 	XcmConfig,
 	TrustBackedAssetsInstance,
 	AssetIdForTrustBackedAssets,
-	AssetIdForTrustBackedAssetsConvert,
+	AssetIdForTrustBackedAssetsConvertLatest,
 	collator_session_keys(),
 	ExistentialDeposit::get(),
 	12345,
@@ -522,11 +550,15 @@ asset_test_utils::include_asset_transactor_transfer_with_pallet_assets_instance_
 	Runtime,
 	XcmConfig,
 	ForeignAssetsInstance,
-	MultiLocation,
+	xcm::v3::Location,
 	JustTry,
 	collator_session_keys(),
 	ExistentialDeposit::get(),
-	MultiLocation { parents: 1, interior: X2(Parachain(1313), GeneralIndex(12345)) },
+	xcm::v3::Location {
+		parents: 1,
+		interior: [xcm::v3::Junction::Parachain(1313), xcm::v3::Junction::GeneralIndex(12345)]
+			.into()
+	},
 	Box::new(|| {
 		assert!(Assets::asset_ids().collect::<Vec<_>>().is_empty());
 	}),
@@ -541,8 +573,8 @@ asset_test_utils::include_create_and_manage_foreign_assets_for_local_consensus_p
 	WeightToFee,
 	ForeignCreatorsSovereignAccountOf,
 	ForeignAssetsInstance,
-	MultiLocation,
+	xcm::v3::Location,
-	JustTry,
+	V4V3LocationConverter,
 	collator_session_keys(),
 	ExistentialDeposit::get(),
 	AssetDeposit::get(),
@@ -626,12 +658,12 @@ fn receive_reserve_asset_deposited_roc_from_asset_hub_rococo_works() {
 			AccountId::from([73; 32]),
 			AccountId::from(BLOCK_AUTHOR_ACCOUNT),
 			// receiving ROCs
-			(MultiLocation { parents: 2, interior: X1(GlobalConsensus(Rococo)) }, 1000000000000, 1_000_000_000),
+			(xcm::v3::Location::new(2, [xcm::v3::Junction::GlobalConsensus(xcm::v3::NetworkId::Rococo)]), 1000000000000, 1_000_000_000),
 			bridging_to_asset_hub_rococo,
 			(
-				X1(PalletInstance(bp_bridge_hub_westend::WITH_BRIDGE_WESTEND_TO_ROCOCO_MESSAGES_PALLET_INDEX)),
+				[PalletInstance(bp_bridge_hub_westend::WITH_BRIDGE_WESTEND_TO_ROCOCO_MESSAGES_PALLET_INDEX)].into(),
 				GlobalConsensus(Rococo),
-				X1(Parachain(1000))
+				[Parachain(1000)].into()
 			)
 		)
 }

cumulus/parachains/runtimes/assets/common/src/benchmarks.rs

@@ -19,26 +19,25 @@ use sp_std::marker::PhantomData;
 use xcm::latest::prelude::*;
 
 /// Creates asset pairs for liquidity pools with `Target` always being the first asset.
-pub struct AssetPairFactory<Target, SelfParaId, PalletId>(
+pub struct AssetPairFactory<Target, SelfParaId, PalletId, L = Location>(
-	PhantomData<(Target, SelfParaId, PalletId)>,
+	PhantomData<(Target, SelfParaId, PalletId, L)>,
 );
-impl<Target: Get<MultiLocation>, SelfParaId: Get<ParaId>, PalletId: Get<u32>>
+impl<Target: Get<L>, SelfParaId: Get<ParaId>, PalletId: Get<u32>, L: TryFrom<Location>>
-	pallet_asset_conversion::BenchmarkHelper<MultiLocation>
+	pallet_asset_conversion::BenchmarkHelper<L> for AssetPairFactory<Target, SelfParaId, PalletId, L>
-	for AssetPairFactory<Target, SelfParaId, PalletId>
 {
-	fn create_pair(seed1: u32, seed2: u32) -> (MultiLocation, MultiLocation) {
+	fn create_pair(seed1: u32, seed2: u32) -> (L, L) {
-		let with_id = MultiLocation::new(
+		let with_id = Location::new(
 			1,
-			X3(
+			[
 				Parachain(SelfParaId::get().into()),
 				PalletInstance(PalletId::get() as u8),
 				GeneralIndex(seed2.into()),
-			),
+			],
 		);
 		if seed1 % 2 == 0 {
-			(with_id, Target::get())
+			(with_id.try_into().map_err(|_| "Something went wrong").unwrap(), Target::get())
 		} else {
-			(Target::get(), with_id)
+			(Target::get(), with_id.try_into().map_err(|_| "Something went wrong").unwrap())
 		}
 	}
 }

cumulus/parachains/runtimes/assets/common/src/foreign_creators.rs

@@ -17,21 +17,21 @@ use frame_support::traits::{
 	ContainsPair, EnsureOrigin, EnsureOriginWithArg, Everything, OriginTrait,
 };
 use pallet_xcm::{EnsureXcm, Origin as XcmOrigin};
-use xcm::latest::MultiLocation;
+use xcm::latest::Location;
 use xcm_executor::traits::ConvertLocation;
 
 /// `EnsureOriginWithArg` impl for `CreateOrigin` that allows only XCM origins that are locations
 /// containing the class location.
-pub struct ForeignCreators<IsForeign, AccountOf, AccountId>(
+pub struct ForeignCreators<IsForeign, AccountOf, AccountId, L = Location>(
-	sp_std::marker::PhantomData<(IsForeign, AccountOf, AccountId)>,
+	sp_std::marker::PhantomData<(IsForeign, AccountOf, AccountId, L)>,
 );
 impl<
-		IsForeign: ContainsPair<MultiLocation, MultiLocation>,
+		IsForeign: ContainsPair<L, L>,
 		AccountOf: ConvertLocation<AccountId>,
 		AccountId: Clone,
 		RuntimeOrigin: From<XcmOrigin> + OriginTrait + Clone,
-	> EnsureOriginWithArg<RuntimeOrigin, MultiLocation>
+		L: TryFrom<Location> + TryInto<Location> + Clone,
-	for ForeignCreators<IsForeign, AccountOf, AccountId>
+	> EnsureOriginWithArg<RuntimeOrigin, L> for ForeignCreators<IsForeign, AccountOf, AccountId, L>
 where
 	RuntimeOrigin::PalletsOrigin:
 		From<XcmOrigin> + TryInto<XcmOrigin, Error = RuntimeOrigin::PalletsOrigin>,
@@ -40,17 +40,20 @@ where
 
 	fn try_origin(
 		origin: RuntimeOrigin,
-		asset_location: &MultiLocation,
+		asset_location: &L,
 	) -> sp_std::result::Result<Self::Success, RuntimeOrigin> {
-		let origin_location = EnsureXcm::<Everything>::try_origin(origin.clone())?;
+		let origin_location = EnsureXcm::<Everything, L>::try_origin(origin.clone())?;
 		if !IsForeign::contains(asset_location, &origin_location) {
 			return Err(origin)
 		}
-		AccountOf::convert_location(&origin_location).ok_or(origin)
+		let latest_location: Location =
+			origin_location.clone().try_into().map_err(|_| origin.clone())?;
+		AccountOf::convert_location(&latest_location).ok_or(origin)
 	}
 
 	#[cfg(feature = "runtime-benchmarks")]
-	fn try_successful_origin(a: &MultiLocation) -> Result<RuntimeOrigin, ()> {
+	fn try_successful_origin(a: &L) -> Result<RuntimeOrigin, ()> {
-		Ok(pallet_xcm::Origin::Xcm(*a).into())
+		let latest_location: Location = (*a).clone().try_into().map_err(|_| ())?;
+		Ok(pallet_xcm::Origin::Xcm(latest_location).into())
 	}
 }

cumulus/parachains/runtimes/assets/common/src/fungible_conversion.rs

@@ -19,52 +19,48 @@ use crate::runtime_api::FungiblesAccessError;
 use frame_support::traits::Contains;
 use sp_runtime::traits::MaybeEquivalence;
 use sp_std::{borrow::Borrow, vec::Vec};
-use xcm::latest::{MultiAsset, MultiLocation};
+use xcm::latest::{Asset, Location};
 use xcm_builder::{ConvertedConcreteId, MatchedConvertedConcreteId};
 use xcm_executor::traits::MatchesFungibles;
 
-/// Converting any [`(AssetId, Balance)`] to [`MultiAsset`]
+/// Converting any [`(AssetId, Balance)`] to [`Asset`]
-pub trait MultiAssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>:
+pub trait AssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>:
 	MatchesFungibles<AssetId, Balance>
 where
 	AssetId: Clone,
 	Balance: Clone,
-	ConvertAssetId: MaybeEquivalence<MultiLocation, AssetId>,
+	ConvertAssetId: MaybeEquivalence<Location, AssetId>,
 	ConvertBalance: MaybeEquivalence<u128, Balance>,
 {
-	fn convert_ref(
+	fn convert_ref(value: impl Borrow<(AssetId, Balance)>) -> Result<Asset, FungiblesAccessError>;
-		value: impl Borrow<(AssetId, Balance)>,
-	) -> Result<MultiAsset, FungiblesAccessError>;
 }
 
-/// Checks for `MultiLocation`.
+/// Checks for `Location`.
-pub trait MatchesMultiLocation<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance>:
+pub trait MatchesLocation<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance>:
 	MatchesFungibles<AssetId, Balance>
 where
 	AssetId: Clone,
 	Balance: Clone,
-	MatchAssetId: Contains<MultiLocation>,
+	MatchAssetId: Contains<Location>,
-	ConvertAssetId: MaybeEquivalence<MultiLocation, AssetId>,
+	ConvertAssetId: MaybeEquivalence<Location, AssetId>,
 	ConvertBalance: MaybeEquivalence<u128, Balance>,
 {
-	fn contains(location: &MultiLocation) -> bool;
+	fn contains(location: &Location) -> bool;
 }
 
 impl<
 		AssetId: Clone,
 		Balance: Clone,
-		ConvertAssetId: MaybeEquivalence<MultiLocation, AssetId>,
+		ConvertAssetId: MaybeEquivalence<Location, AssetId>,
 		ConvertBalance: MaybeEquivalence<u128, Balance>,
-	> MultiAssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>
+	> AssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>
 	for ConvertedConcreteId<AssetId, Balance, ConvertAssetId, ConvertBalance>
 {
-	fn convert_ref(
+	fn convert_ref(value: impl Borrow<(AssetId, Balance)>) -> Result<Asset, FungiblesAccessError> {
-		value: impl Borrow<(AssetId, Balance)>,
-	) -> Result<MultiAsset, FungiblesAccessError> {
 		let (asset_id, balance) = value.borrow();
 		match ConvertAssetId::convert_back(asset_id) {
-			Some(asset_id_as_multilocation) => match ConvertBalance::convert_back(balance) {
+			Some(asset_id_as_location) => match ConvertBalance::convert_back(balance) {
-				Some(amount) => Ok((asset_id_as_multilocation, amount).into()),
+				Some(amount) => Ok((asset_id_as_location, amount).into()),
 				None => Err(FungiblesAccessError::AmountToBalanceConversionFailed),
 			},
 			None => Err(FungiblesAccessError::AssetIdConversionFailed),
@@ -75,19 +71,17 @@ impl<
 impl<
 		AssetId: Clone,
 		Balance: Clone,
-		MatchAssetId: Contains<MultiLocation>,
+		MatchAssetId: Contains<Location>,
-		ConvertAssetId: MaybeEquivalence<MultiLocation, AssetId>,
+		ConvertAssetId: MaybeEquivalence<Location, AssetId>,
 		ConvertBalance: MaybeEquivalence<u128, Balance>,
-	> MultiAssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>
+	> AssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>
 	for MatchedConvertedConcreteId<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance>
 {
-	fn convert_ref(
+	fn convert_ref(value: impl Borrow<(AssetId, Balance)>) -> Result<Asset, FungiblesAccessError> {
-		value: impl Borrow<(AssetId, Balance)>,
-	) -> Result<MultiAsset, FungiblesAccessError> {
 		let (asset_id, balance) = value.borrow();
 		match ConvertAssetId::convert_back(asset_id) {
-			Some(asset_id_as_multilocation) => match ConvertBalance::convert_back(balance) {
+			Some(asset_id_as_location) => match ConvertBalance::convert_back(balance) {
-				Some(amount) => Ok((asset_id_as_multilocation, amount).into()),
+				Some(amount) => Ok((asset_id_as_location, amount).into()),
 				None => Err(FungiblesAccessError::AmountToBalanceConversionFailed),
 			},
 			None => Err(FungiblesAccessError::AssetIdConversionFailed),
@@ -98,13 +92,13 @@ impl<
 impl<
 		AssetId: Clone,
 		Balance: Clone,
-		MatchAssetId: Contains<MultiLocation>,
+		MatchAssetId: Contains<Location>,
-		ConvertAssetId: MaybeEquivalence<MultiLocation, AssetId>,
+		ConvertAssetId: MaybeEquivalence<Location, AssetId>,
 		ConvertBalance: MaybeEquivalence<u128, Balance>,
-	> MatchesMultiLocation<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance>
+	> MatchesLocation<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance>
 	for MatchedConvertedConcreteId<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance>
 {
-	fn contains(location: &MultiLocation) -> bool {
+	fn contains(location: &Location) -> bool {
 		MatchAssetId::contains(location)
 	}
 }
@@ -113,12 +107,12 @@ impl<
 impl<
 		AssetId: Clone,
 		Balance: Clone,
-		MatchAssetId: Contains<MultiLocation>,
+		MatchAssetId: Contains<Location>,
-		ConvertAssetId: MaybeEquivalence<MultiLocation, AssetId>,
+		ConvertAssetId: MaybeEquivalence<Location, AssetId>,
 		ConvertBalance: MaybeEquivalence<u128, Balance>,
-	> MatchesMultiLocation<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance> for Tuple
+	> MatchesLocation<AssetId, Balance, MatchAssetId, ConvertAssetId, ConvertBalance> for Tuple
 {
-	fn contains(location: &MultiLocation) -> bool {
+	fn contains(location: &Location) -> bool {
 		for_tuples!( #(
 			match Tuple::contains(location) { o @ true => return o, _ => () }
 		)* );
@@ -127,27 +121,24 @@ impl<
 	}
 }
 
-/// Helper function to convert collections with [`(AssetId, Balance)`] to [`MultiAsset`]
+/// Helper function to convert collections with [`(AssetId, Balance)`] to [`Asset`]
 pub fn convert<'a, AssetId, Balance, ConvertAssetId, ConvertBalance, Converter>(
 	items: impl Iterator<Item = &'a (AssetId, Balance)>,
-) -> Result<Vec<MultiAsset>, FungiblesAccessError>
+) -> Result<Vec<Asset>, FungiblesAccessError>
 where
 	AssetId: Clone + 'a,
 	Balance: Clone + 'a,
-	ConvertAssetId: MaybeEquivalence<MultiLocation, AssetId>,
+	ConvertAssetId: MaybeEquivalence<Location, AssetId>,
 	ConvertBalance: MaybeEquivalence<u128, Balance>,
-	Converter: MultiAssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>,
+	Converter: AssetConverter<AssetId, Balance, ConvertAssetId, ConvertBalance>,
 {
 	items.map(Converter::convert_ref).collect()
 }
 
-/// Helper function to convert `Balance` with MultiLocation` to `MultiAsset`
+/// Helper function to convert `Balance` with Location` to `Asset`
-pub fn convert_balance<
+pub fn convert_balance<T: frame_support::pallet_prelude::Get<Location>, Balance: TryInto<u128>>(
-	T: frame_support::pallet_prelude::Get<MultiLocation>,
-	Balance: TryInto<u128>,
->(
 	balance: Balance,
-) -> Result<MultiAsset, FungiblesAccessError> {
+) -> Result<Asset, FungiblesAccessError> {
 	match balance.try_into() {
 		Ok(balance) => Ok((T::get(), balance).into()),
 		Err(_) => Err(FungiblesAccessError::AmountToBalanceConversionFailed),
@@ -162,20 +153,20 @@ mod tests {
 	use xcm::latest::prelude::*;
 	use xcm_executor::traits::{Identity, JustTry};
 
-	type Converter = MatchedConvertedConcreteId<MultiLocation, u64, Everything, Identity, JustTry>;
+	type Converter = MatchedConvertedConcreteId<Location, u64, Everything, Identity, JustTry>;
 
 	#[test]
 	fn converted_concrete_id_fungible_multi_asset_conversion_roundtrip_works() {
-		let location = MultiLocation::new(0, X1(GlobalConsensus(ByGenesis([0; 32]))));
+		let location = Location::new(0, [GlobalConsensus(ByGenesis([0; 32]))]);
 		let amount = 123456_u64;
-		let expected_multi_asset = MultiAsset {
+		let expected_multi_asset = Asset {
-			id: Concrete(MultiLocation::new(0, X1(GlobalConsensus(ByGenesis([0; 32]))))),
+			id: AssetId(Location::new(0, [GlobalConsensus(ByGenesis([0; 32]))])),
 			fun: Fungible(123456_u128),
 		};
 
 		assert_eq!(
 			Converter::matches_fungibles(&expected_multi_asset).map_err(|_| ()),
-			Ok((location, amount))
+			Ok((location.clone(), amount))
 		);
 
 		assert_eq!(Converter::convert_ref((location, amount)), Ok(expected_multi_asset));
@@ -184,17 +175,17 @@ mod tests {
 	#[test]
 	fn converted_concrete_id_fungible_multi_asset_conversion_collection_works() {
 		let data = vec![
-			(MultiLocation::new(0, X1(GlobalConsensus(ByGenesis([0; 32])))), 123456_u64),
+			(Location::new(0, [GlobalConsensus(ByGenesis([0; 32]))]), 123456_u64),
-			(MultiLocation::new(1, X1(GlobalConsensus(ByGenesis([1; 32])))), 654321_u64),
+			(Location::new(1, [GlobalConsensus(ByGenesis([1; 32]))]), 654321_u64),
 		];
 
 		let expected_data = vec![
-			MultiAsset {
+			Asset {
-				id: Concrete(MultiLocation::new(0, X1(GlobalConsensus(ByGenesis([0; 32]))))),
+				id: AssetId(Location::new(0, [GlobalConsensus(ByGenesis([0; 32]))])),
 				fun: Fungible(123456_u128),
 			},
-			MultiAsset {
+			Asset {
-				id: Concrete(MultiLocation::new(1, X1(GlobalConsensus(ByGenesis([1; 32]))))),
+				id: AssetId(Location::new(1, [GlobalConsensus(ByGenesis([1; 32]))])),
 				fun: Fungible(654321_u128),
 			},
 		];

cumulus/parachains/runtimes/assets/common/src/lib.rs

@@ -23,15 +23,24 @@ pub mod local_and_foreign_assets;
 pub mod matching;
 pub mod runtime_api;
 
-use crate::matching::{LocalMultiLocationPattern, ParentLocation};
+use crate::matching::{LocalLocationPattern, ParentLocation};
 use frame_support::traits::{Equals, EverythingBut};
 use parachains_common::AssetIdForTrustBackedAssets;
-use xcm::prelude::MultiLocation;
+use xcm_builder::{
-use xcm_builder::{AsPrefixedGeneralIndex, MatchedConvertedConcreteId, StartsWith};
+	AsPrefixedGeneralIndex, MatchedConvertedConcreteId, StartsWith, V4V3LocationConverter,
-use xcm_executor::traits::{Identity, JustTry};
+};
+use xcm_executor::traits::JustTry;
 
-/// `MultiLocation` vs `AssetIdForTrustBackedAssets` converter for `TrustBackedAssets`
+/// `Location` vs `AssetIdForTrustBackedAssets` converter for `TrustBackedAssets`
 pub type AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation> =
+	AsPrefixedGeneralIndex<
+		TrustBackedAssetsPalletLocation,
+		AssetIdForTrustBackedAssets,
+		JustTry,
+		xcm::v3::Location,
+	>;
+
+pub type AssetIdForTrustBackedAssetsConvertLatest<TrustBackedAssetsPalletLocation> =
 	AsPrefixedGeneralIndex<TrustBackedAssetsPalletLocation, AssetIdForTrustBackedAssets, JustTry>;
 
 /// [`MatchedConvertedConcreteId`] converter dedicated for `TrustBackedAssets`
@@ -40,59 +49,55 @@ pub type TrustBackedAssetsConvertedConcreteId<TrustBackedAssetsPalletLocation, B
 		AssetIdForTrustBackedAssets,
 		Balance,
 		StartsWith<TrustBackedAssetsPalletLocation>,
-		AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation>,
+		AssetIdForTrustBackedAssetsConvertLatest<TrustBackedAssetsPalletLocation>,
 		JustTry,
 	>;
 
-/// AssetId used for identifying assets by MultiLocation.
+/// [`MatchedConvertedConcreteId`] converter dedicated for storing `AssetId` as `Location`.
-pub type MultiLocationForAssetId = MultiLocation;
+pub type LocationConvertedConcreteId<LocationFilter, Balance> = MatchedConvertedConcreteId<
+	xcm::v3::Location,
+	Balance,
+	LocationFilter,
+	V4V3LocationConverter,
+	JustTry,
+>;
 
 /// [`MatchedConvertedConcreteId`] converter dedicated for `TrustBackedAssets`
-pub type TrustBackedAssetsAsMultiLocation<TrustBackedAssetsPalletLocation, Balance> =
+pub type TrustBackedAssetsAsLocation<TrustBackedAssetsPalletLocation, Balance> =
 	MatchedConvertedConcreteId<
-		MultiLocationForAssetId,
+		xcm::v3::Location,
 		Balance,
 		StartsWith<TrustBackedAssetsPalletLocation>,
-		Identity,
+		V4V3LocationConverter,
-		JustTry,
-	>;
-
-/// [`MatchedConvertedConcreteId`] converter dedicated for storing `AssetId` as `MultiLocation`.
-pub type MultiLocationConvertedConcreteId<MultiLocationFilter, Balance> =
-	MatchedConvertedConcreteId<
-		MultiLocationForAssetId,
-		Balance,
-		MultiLocationFilter,
-		Identity,
 		JustTry,
 	>;
 
 /// [`MatchedConvertedConcreteId`] converter dedicated for storing `ForeignAssets` with `AssetId` as
-/// `MultiLocation`.
+/// `Location`.
 ///
 /// Excludes by default:
 /// - parent as relay chain
-/// - all local MultiLocations
+/// - all local Locations
 ///
-/// `AdditionalMultiLocationExclusionFilter` can customize additional excluded MultiLocations
+/// `AdditionalLocationExclusionFilter` can customize additional excluded Locations
-pub type ForeignAssetsConvertedConcreteId<AdditionalMultiLocationExclusionFilter, Balance> =
+pub type ForeignAssetsConvertedConcreteId<AdditionalLocationExclusionFilter, Balance> =
-	MultiLocationConvertedConcreteId<
+	LocationConvertedConcreteId<
 		EverythingBut<(
 			// Excludes relay/parent chain currency
 			Equals<ParentLocation>,
 			// Here we rely on fact that something like this works:
-			// assert!(MultiLocation::new(1,
+			// assert!(Location::new(1,
-			// X1(Parachain(100))).starts_with(&MultiLocation::parent()));
+			// [Parachain(100)]).starts_with(&Location::parent()));
-			// assert!(X1(Parachain(100)).starts_with(&Here));
+			// assert!([Parachain(100)].into().starts_with(&Here));
-			StartsWith<LocalMultiLocationPattern>,
+			StartsWith<LocalLocationPattern>,
 			// Here we can exclude more stuff or leave it as `()`
-			AdditionalMultiLocationExclusionFilter,
+			AdditionalLocationExclusionFilter,
 		)>,
 		Balance,
 	>;
 
 type AssetIdForPoolAssets = u32;
-/// `MultiLocation` vs `AssetIdForPoolAssets` converter for `PoolAssets`.
+/// `Location` vs `AssetIdForPoolAssets` converter for `PoolAssets`.
 pub type AssetIdForPoolAssetsConvert<PoolAssetsPalletLocation> =
 	AsPrefixedGeneralIndex<PoolAssetsPalletLocation, AssetIdForPoolAssets, JustTry>;
 /// [`MatchedConvertedConcreteId`] converter dedicated for `PoolAssets`
@@ -109,28 +114,28 @@ pub type PoolAssetsConvertedConcreteId<PoolAssetsPalletLocation, Balance> =
 mod tests {
 	use super::*;
 	use sp_runtime::traits::MaybeEquivalence;
-	use xcm::latest::prelude::*;
+	use xcm::prelude::*;
 	use xcm_builder::StartsWithExplicitGlobalConsensus;
 	use xcm_executor::traits::{Error as MatchError, MatchesFungibles};
 
 	#[test]
 	fn asset_id_for_trust_backed_assets_convert_works() {
 		frame_support::parameter_types! {
-			pub TrustBackedAssetsPalletLocation: MultiLocation = MultiLocation::new(5, X1(PalletInstance(13)));
+			pub TrustBackedAssetsPalletLocation: Location = Location::new(5, [PalletInstance(13)]);
 		}
 		let local_asset_id = 123456789 as AssetIdForTrustBackedAssets;
 		let expected_reverse_ref =
-			MultiLocation::new(5, X2(PalletInstance(13), GeneralIndex(local_asset_id.into())));
+			Location::new(5, [PalletInstance(13), GeneralIndex(local_asset_id.into())]);
 
 		assert_eq!(
-			AssetIdForTrustBackedAssetsConvert::<TrustBackedAssetsPalletLocation>::convert_back(
+			AssetIdForTrustBackedAssetsConvertLatest::<TrustBackedAssetsPalletLocation>::convert_back(
 				&local_asset_id
 			)
 			.unwrap(),
 			expected_reverse_ref
 		);
 		assert_eq!(
-			AssetIdForTrustBackedAssetsConvert::<TrustBackedAssetsPalletLocation>::convert(
+			AssetIdForTrustBackedAssetsConvertLatest::<TrustBackedAssetsPalletLocation>::convert(
 				&expected_reverse_ref
 			)
 			.unwrap(),
@@ -141,7 +146,7 @@ mod tests {
 	#[test]
 	fn trust_backed_assets_match_fungibles_works() {
 		frame_support::parameter_types! {
-			pub TrustBackedAssetsPalletLocation: MultiLocation = MultiLocation::new(0, X1(PalletInstance(13)));
+			pub TrustBackedAssetsPalletLocation: Location = Location::new(0, [PalletInstance(13)]);
 		}
 		// setup convert
 		type TrustBackedAssetsConvert =
@@ -149,85 +154,86 @@ mod tests {
 
 		let test_data = vec![
 			// missing GeneralIndex
-			(ma_1000(0, X1(PalletInstance(13))), Err(MatchError::AssetIdConversionFailed)),
+			(ma_1000(0, [PalletInstance(13)].into()), Err(MatchError::AssetIdConversionFailed)),
 			(
-				ma_1000(0, X2(PalletInstance(13), GeneralKey { data: [0; 32], length: 32 })),
+				ma_1000(0, [PalletInstance(13), GeneralKey { data: [0; 32], length: 32 }].into()),
 				Err(MatchError::AssetIdConversionFailed),
 			),
 			(
-				ma_1000(0, X2(PalletInstance(13), Parachain(1000))),
+				ma_1000(0, [PalletInstance(13), Parachain(1000)].into()),
 				Err(MatchError::AssetIdConversionFailed),
 			),
 			// OK
-			(ma_1000(0, X2(PalletInstance(13), GeneralIndex(1234))), Ok((1234, 1000))),
+			(ma_1000(0, [PalletInstance(13), GeneralIndex(1234)].into()), Ok((1234, 1000))),
 			(
-				ma_1000(0, X3(PalletInstance(13), GeneralIndex(1234), GeneralIndex(2222))),
+				ma_1000(0, [PalletInstance(13), GeneralIndex(1234), GeneralIndex(2222)].into()),
 				Ok((1234, 1000)),
 			),
 			(
 				ma_1000(
 					0,
-					X4(
+					[
 						PalletInstance(13),
 						GeneralIndex(1234),
 						GeneralIndex(2222),
 						GeneralKey { data: [0; 32], length: 32 },
-					),
+					]
+					.into(),
 				),
 				Ok((1234, 1000)),
 			),
 			// wrong pallet instance
 			(
-				ma_1000(0, X2(PalletInstance(77), GeneralIndex(1234))),
+				ma_1000(0, [PalletInstance(77), GeneralIndex(1234)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			(
-				ma_1000(0, X3(PalletInstance(77), GeneralIndex(1234), GeneralIndex(2222))),
+				ma_1000(0, [PalletInstance(77), GeneralIndex(1234), GeneralIndex(2222)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			// wrong parent
 			(
-				ma_1000(1, X2(PalletInstance(13), GeneralIndex(1234))),
+				ma_1000(1, [PalletInstance(13), GeneralIndex(1234)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			(
-				ma_1000(1, X3(PalletInstance(13), GeneralIndex(1234), GeneralIndex(2222))),
+				ma_1000(1, [PalletInstance(13), GeneralIndex(1234), GeneralIndex(2222)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			(
-				ma_1000(1, X2(PalletInstance(77), GeneralIndex(1234))),
+				ma_1000(1, [PalletInstance(77), GeneralIndex(1234)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			(
-				ma_1000(1, X3(PalletInstance(77), GeneralIndex(1234), GeneralIndex(2222))),
+				ma_1000(1, [PalletInstance(77), GeneralIndex(1234), GeneralIndex(2222)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			// wrong parent
 			(
-				ma_1000(2, X2(PalletInstance(13), GeneralIndex(1234))),
+				ma_1000(2, [PalletInstance(13), GeneralIndex(1234)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			(
-				ma_1000(2, X3(PalletInstance(13), GeneralIndex(1234), GeneralIndex(2222))),
+				ma_1000(2, [PalletInstance(13), GeneralIndex(1234), GeneralIndex(2222)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			// missing GeneralIndex
-			(ma_1000(0, X1(PalletInstance(77))), Err(MatchError::AssetNotHandled)),
+			(ma_1000(0, [PalletInstance(77)].into()), Err(MatchError::AssetNotHandled)),
-			(ma_1000(1, X1(PalletInstance(13))), Err(MatchError::AssetNotHandled)),
+			(ma_1000(1, [PalletInstance(13)].into()), Err(MatchError::AssetNotHandled)),
-			(ma_1000(2, X1(PalletInstance(13))), Err(MatchError::AssetNotHandled)),
+			(ma_1000(2, [PalletInstance(13)].into()), Err(MatchError::AssetNotHandled)),
 		];
 
-		for (multi_asset, expected_result) in test_data {
+		for (asset, expected_result) in test_data {
 			assert_eq!(
-				<TrustBackedAssetsConvert as MatchesFungibles<AssetIdForTrustBackedAssets, u128>>::matches_fungibles(&multi_asset),
+				<TrustBackedAssetsConvert as MatchesFungibles<AssetIdForTrustBackedAssets, u128>>::matches_fungibles(&asset.clone().try_into().unwrap()),
-				expected_result, "multi_asset: {:?}", multi_asset);
+				expected_result, "asset: {:?}", asset);
 		}
 	}
 
 	#[test]
-	fn multi_location_converted_concrete_id_converter_works() {
+	fn location_converted_concrete_id_converter_works() {
 		frame_support::parameter_types! {
-			pub Parachain100Pattern: MultiLocation = MultiLocation::new(1, X1(Parachain(100)));
+			pub Parachain100Pattern: Location = Location::new(1, [Parachain(100)]);
 			pub UniversalLocationNetworkId: NetworkId = NetworkId::ByGenesis([9; 32]);
 		}
 
@@ -243,95 +249,125 @@ mod tests {
 		let test_data = vec![
 			// excluded as local
 			(ma_1000(0, Here), Err(MatchError::AssetNotHandled)),
-			(ma_1000(0, X1(Parachain(100))), Err(MatchError::AssetNotHandled)),
+			(ma_1000(0, [Parachain(100)].into()), Err(MatchError::AssetNotHandled)),
 			(
-				ma_1000(0, X2(PalletInstance(13), GeneralIndex(1234))),
+				ma_1000(0, [PalletInstance(13), GeneralIndex(1234)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			// excluded as parent
 			(ma_1000(1, Here), Err(MatchError::AssetNotHandled)),
 			// excluded as additional filter - Parachain100Pattern
-			(ma_1000(1, X1(Parachain(100))), Err(MatchError::AssetNotHandled)),
+			(ma_1000(1, [Parachain(100)].into()), Err(MatchError::AssetNotHandled)),
-			(ma_1000(1, X2(Parachain(100), GeneralIndex(1234))), Err(MatchError::AssetNotHandled)),
 			(
-				ma_1000(1, X3(Parachain(100), PalletInstance(13), GeneralIndex(1234))),
+				ma_1000(1, [Parachain(100), GeneralIndex(1234)].into()),
+				Err(MatchError::AssetNotHandled),
+			),
+			(
+				ma_1000(1, [Parachain(100), PalletInstance(13), GeneralIndex(1234)].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			// excluded as additional filter - StartsWithExplicitGlobalConsensus
 			(
-				ma_1000(1, X1(GlobalConsensus(NetworkId::ByGenesis([9; 32])))),
+				ma_1000(1, [GlobalConsensus(NetworkId::ByGenesis([9; 32]))].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			(
-				ma_1000(2, X1(GlobalConsensus(NetworkId::ByGenesis([9; 32])))),
+				ma_1000(2, [GlobalConsensus(NetworkId::ByGenesis([9; 32]))].into()),
 				Err(MatchError::AssetNotHandled),
 			),
 			(
 				ma_1000(
 					2,
-					X3(
+					[
 						GlobalConsensus(NetworkId::ByGenesis([9; 32])),
 						Parachain(200),
 						GeneralIndex(1234),
-					),
+					]
+					.into(),
 				),
 				Err(MatchError::AssetNotHandled),
 			),
 			// ok
-			(ma_1000(1, X1(Parachain(200))), Ok((MultiLocation::new(1, X1(Parachain(200))), 1000))),
-			(ma_1000(2, X1(Parachain(200))), Ok((MultiLocation::new(2, X1(Parachain(200))), 1000))),
 			(
-				ma_1000(1, X2(Parachain(200), GeneralIndex(1234))),
+				ma_1000(1, [Parachain(200)].into()),
-				Ok((MultiLocation::new(1, X2(Parachain(200), GeneralIndex(1234))), 1000)),
+				Ok((xcm::v3::Location::new(1, [xcm::v3::Junction::Parachain(200)]), 1000)),
 			),
 			(
-				ma_1000(2, X2(Parachain(200), GeneralIndex(1234))),
+				ma_1000(2, [Parachain(200)].into()),
-				Ok((MultiLocation::new(2, X2(Parachain(200), GeneralIndex(1234))), 1000)),
+				Ok((xcm::v3::Location::new(2, [xcm::v3::Junction::Parachain(200)]), 1000)),
 			),
 			(
-				ma_1000(2, X1(GlobalConsensus(NetworkId::ByGenesis([7; 32])))),
+				ma_1000(1, [Parachain(200), GeneralIndex(1234)].into()),
 				Ok((
-					MultiLocation::new(2, X1(GlobalConsensus(NetworkId::ByGenesis([7; 32])))),
+					xcm::v3::Location::new(
+						1,
+						[xcm::v3::Junction::Parachain(200), xcm::v3::Junction::GeneralIndex(1234)],
+					),
+					1000,
+				)),
+			),
+			(
+				ma_1000(2, [Parachain(200), GeneralIndex(1234)].into()),
+				Ok((
+					xcm::v3::Location::new(
+						2,
+						[xcm::v3::Junction::Parachain(200), xcm::v3::Junction::GeneralIndex(1234)],
+					),
+					1000,
+				)),
+			),
+			(
+				ma_1000(2, [GlobalConsensus(NetworkId::ByGenesis([7; 32]))].into()),
+				Ok((
+					xcm::v3::Location::new(
+						2,
+						[xcm::v3::Junction::GlobalConsensus(xcm::v3::NetworkId::ByGenesis(
+							[7; 32],
+						))],
+					),
 					1000,
 				)),
 			),
 			(
 				ma_1000(
 					2,
-					X3(
+					[
 						GlobalConsensus(NetworkId::ByGenesis([7; 32])),
 						Parachain(200),
 						GeneralIndex(1234),
-					),
+					]
+					.into(),
 				),
 				Ok((
-					MultiLocation::new(
+					xcm::v3::Location::new(
 						2,
-						X3(
+						[
-							GlobalConsensus(NetworkId::ByGenesis([7; 32])),
+							xcm::v3::Junction::GlobalConsensus(xcm::v3::NetworkId::ByGenesis(
-							Parachain(200),
+								[7; 32],
-							GeneralIndex(1234),
+							)),
-						),
+							xcm::v3::Junction::Parachain(200),
+							xcm::v3::Junction::GeneralIndex(1234),
+						],
 					),
 					1000,
 				)),
 			),
 		];
 
-		for (multi_asset, expected_result) in test_data {
+		for (asset, expected_result) in test_data {
 			assert_eq!(
-				<Convert as MatchesFungibles<MultiLocationForAssetId, u128>>::matches_fungibles(
+				<Convert as MatchesFungibles<xcm::v3::MultiLocation, u128>>::matches_fungibles(
-					&multi_asset
+					&asset.clone().try_into().unwrap()
 				),
 				expected_result,
-				"multi_asset: {:?}",
+				"asset: {:?}",
-				multi_asset
+				asset
 			);
 		}
 	}
 
-	// Create MultiAsset
+	// Create Asset
-	fn ma_1000(parents: u8, interior: Junctions) -> MultiAsset {
+	fn ma_1000(parents: u8, interior: Junctions) -> Asset {
-		(MultiLocation::new(parents, interior), 1000).into()
+		(Location::new(parents, interior), 1000).into()
 	}
 }

cumulus/parachains/runtimes/assets/common/src/local_and_foreign_assets.rs

@@ -20,32 +20,32 @@ use sp_runtime::{
 	Either::{Left, Right},
 };
 use sp_std::marker::PhantomData;
-use xcm::latest::MultiLocation;
+use xcm::latest::Location;
 
-/// Converts a given [`MultiLocation`] to [`Either::Left`] when equal to `Target`, or
+/// Converts a given [`Location`] to [`Either::Left`] when equal to `Target`, or
 /// [`Either::Right`] otherwise.
 ///
 /// Suitable for use as a `Criterion` with [`frame_support::traits::tokens::fungible::UnionOf`].
-pub struct TargetFromLeft<Target>(PhantomData<Target>);
+pub struct TargetFromLeft<Target, L = Location>(PhantomData<(Target, L)>);
-impl<Target: Get<MultiLocation>> Convert<MultiLocation, Either<(), MultiLocation>>
+impl<Target: Get<L>, L: PartialEq + Eq> Convert<L, Either<(), L>> for TargetFromLeft<Target, L> {
-	for TargetFromLeft<Target>
+	fn convert(l: L) -> Either<(), L> {
-{
-	fn convert(l: MultiLocation) -> Either<(), MultiLocation> {
 		Target::get().eq(&l).then(|| Left(())).map_or(Right(l), |n| n)
 	}
 }
 
-/// Converts a given [`MultiLocation`] to [`Either::Left`] based on the `Equivalence` criteria.
+/// Converts a given [`Location`] to [`Either::Left`] based on the `Equivalence` criteria.
 /// Returns [`Either::Right`] if not equivalent.
 ///
 /// Suitable for use as a `Criterion` with [`frame_support::traits::tokens::fungibles::UnionOf`].
-pub struct LocalFromLeft<Equivalence, AssetId>(PhantomData<(Equivalence, AssetId)>);
+pub struct LocalFromLeft<Equivalence, AssetId, L = Location>(
-impl<Equivalence, AssetId> Convert<MultiLocation, Either<AssetId, MultiLocation>>
+	PhantomData<(Equivalence, AssetId, L)>,
-	for LocalFromLeft<Equivalence, AssetId>
+);
+impl<Equivalence, AssetId, L> Convert<L, Either<AssetId, L>>
+	for LocalFromLeft<Equivalence, AssetId, L>
 where
-	Equivalence: MaybeEquivalence<MultiLocation, AssetId>,
+	Equivalence: MaybeEquivalence<L, AssetId>,
 {
-	fn convert(l: MultiLocation) -> Either<AssetId, MultiLocation> {
+	fn convert(l: L) -> Either<AssetId, L> {
 		match Equivalence::convert(&l) {
 			Some(id) => Left(id),
 			None => Right(l),
@@ -53,7 +53,7 @@ where
 	}
 }
 
-pub trait MatchesLocalAndForeignAssetsMultiLocation {
+pub trait MatchesLocalAndForeignAssetsLocation<L = Location> {
-	fn is_local(location: &MultiLocation) -> bool;
+	fn is_local(location: &L) -> bool;
-	fn is_foreign(location: &MultiLocation) -> bool;
+	fn is_foreign(location: &L) -> bool;
 }

cumulus/parachains/runtimes/assets/common/src/matching.rs

@@ -15,67 +15,72 @@
 
 use cumulus_primitives_core::ParaId;
 use frame_support::{pallet_prelude::Get, traits::ContainsPair};
-use xcm::{
+use xcm::prelude::*;
-	latest::prelude::{MultiAsset, MultiLocation},
+
-	prelude::*,
-};
 use xcm_builder::ensure_is_remote;
 
 frame_support::parameter_types! {
-	pub LocalMultiLocationPattern: MultiLocation = MultiLocation::new(0, Here);
+	pub LocalLocationPattern: Location = Location::new(0, Here);
-	pub ParentLocation: MultiLocation = MultiLocation::parent();
+	pub ParentLocation: Location = Location::parent();
 }
 
 /// Accepts an asset if it is from the origin.
 pub struct IsForeignConcreteAsset<IsForeign>(sp_std::marker::PhantomData<IsForeign>);
-impl<IsForeign: ContainsPair<MultiLocation, MultiLocation>> ContainsPair<MultiAsset, MultiLocation>
+impl<IsForeign: ContainsPair<Location, Location>> ContainsPair<Asset, Location>
 	for IsForeignConcreteAsset<IsForeign>
 {
-	fn contains(asset: &MultiAsset, origin: &MultiLocation) -> bool {
+	fn contains(asset: &Asset, origin: &Location) -> bool {
 		log::trace!(target: "xcm::contains", "IsForeignConcreteAsset asset: {:?}, origin: {:?}", asset, origin);
-		matches!(asset.id, Concrete(ref id) if IsForeign::contains(id, origin))
+		matches!(asset.id, AssetId(ref id) if IsForeign::contains(id, origin))
 	}
 }
 
-/// Checks if `a` is from sibling location `b`. Checks that `MultiLocation-a` starts with
+/// Checks if `a` is from sibling location `b`. Checks that `Location-a` starts with
-/// `MultiLocation-b`, and that the `ParaId` of `b` is not equal to `a`.
+/// `Location-b`, and that the `ParaId` of `b` is not equal to `a`.
-pub struct FromSiblingParachain<SelfParaId>(sp_std::marker::PhantomData<SelfParaId>);
+pub struct FromSiblingParachain<SelfParaId, L = Location>(
-impl<SelfParaId: Get<ParaId>> ContainsPair<MultiLocation, MultiLocation>
+	sp_std::marker::PhantomData<(SelfParaId, L)>,
-	for FromSiblingParachain<SelfParaId>
+);
+impl<SelfParaId: Get<ParaId>, L: TryFrom<Location> + TryInto<Location> + Clone> ContainsPair<L, L>
+	for FromSiblingParachain<SelfParaId, L>
 {
-	fn contains(&a: &MultiLocation, b: &MultiLocation) -> bool {
+	fn contains(a: &L, b: &L) -> bool {
-		// `a` needs to be from `b` at least
+		// We convert locations to latest
-		if !a.starts_with(b) {
+		let a = match ((*a).clone().try_into(), (*b).clone().try_into()) {
-			return false
+			(Ok(a), Ok(b)) if a.starts_with(&b) => a, // `a` needs to be from `b` at least
-		}
+			_ => return false,
+		};
 
 		// here we check if sibling
-		match a {
+		match a.unpack() {
-			MultiLocation { parents: 1, interior } =>
+			(1, interior) =>
 				matches!(interior.first(), Some(Parachain(sibling_para_id)) if sibling_para_id.ne(&u32::from(SelfParaId::get()))),
 			_ => false,
 		}
 	}
 }
 
-/// Checks if `a` is from the expected global consensus network. Checks that `MultiLocation-a`
+/// Checks if `a` is from the expected global consensus network. Checks that `Location-a`
-/// starts with `MultiLocation-b`, and that network is a foreign consensus system.
+/// starts with `Location-b`, and that network is a foreign consensus system.
-pub struct FromNetwork<UniversalLocation, ExpectedNetworkId>(
+pub struct FromNetwork<UniversalLocation, ExpectedNetworkId, L = Location>(
-	sp_std::marker::PhantomData<(UniversalLocation, ExpectedNetworkId)>,
+	sp_std::marker::PhantomData<(UniversalLocation, ExpectedNetworkId, L)>,
 );
-impl<UniversalLocation: Get<InteriorMultiLocation>, ExpectedNetworkId: Get<NetworkId>>
+impl<
-	ContainsPair<MultiLocation, MultiLocation> for FromNetwork<UniversalLocation, ExpectedNetworkId>
+		UniversalLocation: Get<InteriorLocation>,
+		ExpectedNetworkId: Get<NetworkId>,
+		L: TryFrom<Location> + TryInto<Location> + Clone,
+	> ContainsPair<L, L> for FromNetwork<UniversalLocation, ExpectedNetworkId, L>
 {
-	fn contains(&a: &MultiLocation, b: &MultiLocation) -> bool {
+	fn contains(a: &L, b: &L) -> bool {
-		// `a` needs to be from `b` at least
+		// We convert locations to latest
-		if !a.starts_with(b) {
+		let a = match ((*a).clone().try_into(), (*b).clone().try_into()) {
-			return false
+			(Ok(a), Ok(b)) if a.starts_with(&b) => a, // `a` needs to be from `b` at least
-		}
+			_ => return false,
+		};
 
 		let universal_source = UniversalLocation::get();
 
-		// ensure that `a`` is remote and from the expected network
+		// ensure that `a` is remote and from the expected network
-		match ensure_is_remote(universal_source, a) {
+		match ensure_is_remote(universal_source.clone(), a.clone()) {
 			Ok((network_id, _)) => network_id == ExpectedNetworkId::get(),
 			Err(e) => {
 				log::trace!(
@@ -89,19 +94,17 @@ impl<UniversalLocation: Get<InteriorMultiLocation>, ExpectedNetworkId: Get<Netwo
 	}
 }
 
-/// Adapter verifies if it is allowed to receive `MultiAsset` from `MultiLocation`.
+/// Adapter verifies if it is allowed to receive `Asset` from `Location`.
 ///
-/// Note: `MultiLocation` has to be from a different global consensus.
+/// Note: `Location` has to be from a different global consensus.
 pub struct IsTrustedBridgedReserveLocationForConcreteAsset<UniversalLocation, Reserves>(
 	sp_std::marker::PhantomData<(UniversalLocation, Reserves)>,
 );
-impl<
+impl<UniversalLocation: Get<InteriorLocation>, Reserves: ContainsPair<Asset, Location>>
-		UniversalLocation: Get<InteriorMultiLocation>,
+	ContainsPair<Asset, Location>
-		Reserves: ContainsPair<MultiAsset, MultiLocation>,
-	> ContainsPair<MultiAsset, MultiLocation>
 	for IsTrustedBridgedReserveLocationForConcreteAsset<UniversalLocation, Reserves>
 {
-	fn contains(asset: &MultiAsset, origin: &MultiLocation) -> bool {
+	fn contains(asset: &Asset, origin: &Location) -> bool {
 		let universal_source = UniversalLocation::get();
 		log::trace!(
 			target: "xcm::contains",
@@ -110,7 +113,7 @@ impl<
 		);
 
 		// check remote origin
-		let _ = match ensure_is_remote(universal_source, *origin) {
+		let _ = match ensure_is_remote(universal_source.clone(), origin.clone()) {
 			Ok(devolved) => devolved,
 			Err(_) => {
 				log::trace!(
@@ -133,14 +136,14 @@ mod tests {
 	use frame_support::parameter_types;
 
 	parameter_types! {
-		pub UniversalLocation: InteriorMultiLocation = X2(GlobalConsensus(Rococo), Parachain(1000));
+		pub UniversalLocation: InteriorLocation = [GlobalConsensus(Rococo), Parachain(1000)].into();
 		pub ExpectedNetworkId: NetworkId = Wococo;
 	}
 
 	#[test]
 	fn from_network_contains_works() {
 		// asset and origin from foreign consensus works
-		let asset: MultiLocation = (
+		let asset: Location = (
 			Parent,
 			Parent,
 			GlobalConsensus(Wococo),
@@ -149,12 +152,11 @@ mod tests {
 			GeneralIndex(1),
 		)
 			.into();
-		let origin: MultiLocation =
+		let origin: Location = (Parent, Parent, GlobalConsensus(Wococo), Parachain(1000)).into();
-			(Parent, Parent, GlobalConsensus(Wococo), Parachain(1000)).into();
 		assert!(FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
 
 		// asset and origin from local consensus fails
-		let asset: MultiLocation = (
+		let asset: Location = (
 			Parent,
 			Parent,
 			GlobalConsensus(Rococo),
@@ -163,17 +165,16 @@ mod tests {
 			GeneralIndex(1),
 		)
 			.into();
-		let origin: MultiLocation =
+		let origin: Location = (Parent, Parent, GlobalConsensus(Rococo), Parachain(1000)).into();
-			(Parent, Parent, GlobalConsensus(Rococo), Parachain(1000)).into();
 		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
 
 		// asset and origin from here fails
-		let asset: MultiLocation = (PalletInstance(1), GeneralIndex(1)).into();
+		let asset: Location = (PalletInstance(1), GeneralIndex(1)).into();
-		let origin: MultiLocation = Here.into();
+		let origin: Location = Here.into();
 		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
 
 		// asset from different consensus fails
-		let asset: MultiLocation = (
+		let asset: Location = (
 			Parent,
 			Parent,
 			GlobalConsensus(Polkadot),
@@ -182,12 +183,11 @@ mod tests {
 			GeneralIndex(1),
 		)
 			.into();
-		let origin: MultiLocation =
+		let origin: Location = (Parent, Parent, GlobalConsensus(Wococo), Parachain(1000)).into();
-			(Parent, Parent, GlobalConsensus(Wococo), Parachain(1000)).into();
 		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
 
 		// origin from different consensus fails
-		let asset: MultiLocation = (
+		let asset: Location = (
 			Parent,
 			Parent,
 			GlobalConsensus(Wococo),
@@ -196,12 +196,11 @@ mod tests {
 			GeneralIndex(1),
 		)
 			.into();
-		let origin: MultiLocation =
+		let origin: Location = (Parent, Parent, GlobalConsensus(Polkadot), Parachain(1000)).into();
-			(Parent, Parent, GlobalConsensus(Polkadot), Parachain(1000)).into();
 		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
 
 		// asset and origin from unexpected consensus fails
-		let asset: MultiLocation = (
+		let asset: Location = (
 			Parent,
 			Parent,
 			GlobalConsensus(Polkadot),
@@ -210,8 +209,7 @@ mod tests {
 			GeneralIndex(1),
 		)
 			.into();
-		let origin: MultiLocation =
+		let origin: Location = (Parent, Parent, GlobalConsensus(Polkadot), Parachain(1000)).into();
-			(Parent, Parent, GlobalConsensus(Polkadot), Parachain(1000)).into();
 		assert!(!FromNetwork::<UniversalLocation, ExpectedNetworkId>::contains(&asset, &origin));
 	}
 }

cumulus/parachains/runtimes/assets/common/src/runtime_api.rs

@@ -18,12 +18,12 @@
 use codec::{Codec, Decode, Encode};
 use sp_runtime::RuntimeDebug;
 #[cfg(feature = "std")]
-use {sp_std::vec::Vec, xcm::latest::MultiAsset};
+use {sp_std::vec::Vec, xcm::latest::Asset};
 
 /// The possible errors that can happen querying the storage of assets.
 #[derive(Eq, PartialEq, Encode, Decode, RuntimeDebug, scale_info::TypeInfo)]
 pub enum FungiblesAccessError {
-	/// `MultiLocation` to `AssetId`/`ClassId` conversion failed.
+	/// `Location` to `AssetId`/`ClassId` conversion failed.
 	AssetIdConversionFailed,
 	/// `u128` amount to currency `Balance` conversion failed.
 	AmountToBalanceConversionFailed,
@@ -36,11 +36,11 @@ sp_api::decl_runtime_apis! {
 	where
 		AccountId: Codec,
 	{
-		/// Returns the list of all [`MultiAsset`] that an `AccountId` has.
+		/// Returns the list of all [`Asset`] that an `AccountId` has.
 		#[changed_in(2)]
-		fn query_account_balances(account: AccountId) -> Result<Vec<MultiAsset>, FungiblesAccessError>;
+		fn query_account_balances(account: AccountId) -> Result<Vec<Asset>, FungiblesAccessError>;
 
-		/// Returns the list of all [`MultiAsset`] that an `AccountId` has.
+		/// Returns the list of all [`Asset`] that an `AccountId` has.
-		fn query_account_balances(account: AccountId) -> Result<xcm::VersionedMultiAssets, FungiblesAccessError>;
+		fn query_account_balances(account: AccountId) -> Result<xcm::VersionedAssets, FungiblesAccessError>;
 	}
 }

cumulus/parachains/runtimes/assets/test-utils/src/lib.rs

@@ -28,7 +28,7 @@ use xcm::latest::prelude::*;
 use xcm_builder::{CreateMatcher, MatchXcm};
 
 /// Given a message, a sender, and a destination, it returns the delivery fees
-fn get_fungible_delivery_fees<S: SendXcm>(destination: MultiLocation, message: Xcm<()>) -> u128 {
+fn get_fungible_delivery_fees<S: SendXcm>(destination: Location, message: Xcm<()>) -> u128 {
 	let Ok((_, delivery_fees)) = validate_send::<S>(destination, message) else {
 		unreachable!("message can be sent; qed")
 	};
@@ -46,8 +46,8 @@ fn get_fungible_delivery_fees<S: SendXcm>(destination: MultiLocation, message: X
 /// chain as part of a reserve-asset-transfer.
 pub(crate) fn assert_matches_reserve_asset_deposited_instructions<RuntimeCall: Debug>(
 	xcm: &mut Xcm<RuntimeCall>,
-	expected_reserve_assets_deposited: &MultiAssets,
+	expected_reserve_assets_deposited: &Assets,
-	expected_beneficiary: &MultiLocation,
+	expected_beneficiary: &Location,
 ) {
 	let _ = xcm
 		.0

cumulus/parachains/runtimes/assets/test-utils/src/test_cases.rs

@@ -37,7 +37,7 @@ use sp_runtime::{
 	traits::{MaybeEquivalence, StaticLookup, Zero},
 	DispatchError, Saturating,
 };
-use xcm::{latest::prelude::*, VersionedMultiAssets};
+use xcm::{latest::prelude::*, VersionedAssets};
 use xcm_executor::{traits::ConvertLocation, XcmExecutor};
 
 type RuntimeHelper<Runtime, AllPalletsWithoutSystem = ()> =
@@ -110,7 +110,7 @@ pub fn teleports_for_native_asset_works<
 				0.into()
 			);
 
-			let native_asset_id = MultiLocation::parent();
+			let native_asset_id = Location::parent();
 			let buy_execution_fee_amount_eta =
 				WeightToFee::weight_to_fee(&Weight::from_parts(90_000_000_000, 1024));
 			let native_asset_amount_unit = existential_deposit;
@@ -119,38 +119,40 @@ pub fn teleports_for_native_asset_works<
 
 			// 1. process received teleported assets from relaychain
 			let xcm = Xcm(vec![
-				ReceiveTeleportedAsset(MultiAssets::from(vec![MultiAsset {
+				ReceiveTeleportedAsset(Assets::from(vec![Asset {
-					id: Concrete(native_asset_id),
+					id: AssetId(native_asset_id.clone()),
 					fun: Fungible(native_asset_amount_received.into()),
 				}])),
 				ClearOrigin,
 				BuyExecution {
-					fees: MultiAsset {
+					fees: Asset {
-						id: Concrete(native_asset_id),
+						id: AssetId(native_asset_id.clone()),
 						fun: Fungible(buy_execution_fee_amount_eta),
 					},
 					weight_limit: Limited(Weight::from_parts(3035310000, 65536)),
 				},
 				DepositAsset {
 					assets: Wild(AllCounted(1)),
-					beneficiary: MultiLocation {
+					beneficiary: Location {
 						parents: 0,
-						interior: X1(AccountId32 {
+						interior: [AccountId32 {
 							network: None,
 							id: target_account.clone().into(),
-						}),
+						}]
+						.into(),
 					},
 				},
 				ExpectTransactStatus(MaybeErrorCode::Success),
 			]);
 
-			let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+			let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
 
-			let outcome = XcmExecutor::<XcmConfig>::execute_xcm(
+			let outcome = XcmExecutor::<XcmConfig>::prepare_and_execute(
 				Parent,
 				xcm,
-				hash,
+				&mut hash,
 				RuntimeHelper::<Runtime>::xcm_max_weight(XcmReceivedFrom::Parent),
+				Weight::zero(),
 			);
 			assert_ok!(outcome.ensure_complete());
 
@@ -163,14 +165,14 @@ pub fn teleports_for_native_asset_works<
 
 			// 2. try to teleport asset back to the relaychain
 			{
-				let dest = MultiLocation::parent();
+				let dest = Location::parent();
-				let mut dest_beneficiary = MultiLocation::parent()
+				let mut dest_beneficiary = Location::parent()
 					.appended_with(AccountId32 {
 						network: None,
 						id: sp_runtime::AccountId32::new([3; 32]).into(),
 					})
 					.unwrap();
-				dest_beneficiary.reanchor(&dest, XcmConfig::UniversalLocation::get()).unwrap();
+				dest_beneficiary.reanchor(&dest, &XcmConfig::UniversalLocation::get()).unwrap();
 
 				let target_account_balance_before_teleport =
 					<pallet_balances::Pallet<Runtime>>::free_balance(&target_account);
@@ -183,11 +185,11 @@ pub fn teleports_for_native_asset_works<
 				// Mint funds into account to ensure it has enough balance to pay delivery fees
 				let delivery_fees =
 					xcm_helpers::transfer_assets_delivery_fees::<XcmConfig::XcmSender>(
-						(native_asset_id, native_asset_to_teleport_away.into()).into(),
+						(native_asset_id.clone(), native_asset_to_teleport_away.into()).into(),
 						0,
 						Unlimited,
-						dest_beneficiary,
+						dest_beneficiary.clone(),
-						dest,
+						dest.clone(),
 					);
 				<pallet_balances::Pallet<Runtime>>::mint_into(
 					&target_account,
@@ -199,7 +201,7 @@ pub fn teleports_for_native_asset_works<
 					RuntimeHelper::<Runtime>::origin_of(target_account.clone()),
 					dest,
 					dest_beneficiary,
-					(native_asset_id, native_asset_to_teleport_away.into()),
+					(native_asset_id.clone(), native_asset_to_teleport_away.into()),
 					None,
 					included_head.clone(),
 					&alice,
@@ -228,14 +230,14 @@ pub fn teleports_for_native_asset_works<
 			//    trust `IsTeleporter` for `(relay-native-asset, para(2345))` pair
 			{
 				let other_para_id = 2345;
-				let dest = MultiLocation::new(1, X1(Parachain(other_para_id)));
+				let dest = Location::new(1, [Parachain(other_para_id)]);
-				let mut dest_beneficiary = MultiLocation::new(1, X1(Parachain(other_para_id)))
+				let mut dest_beneficiary = Location::new(1, [Parachain(other_para_id)])
 					.appended_with(AccountId32 {
 						network: None,
 						id: sp_runtime::AccountId32::new([3; 32]).into(),
 					})
 					.unwrap();
-				dest_beneficiary.reanchor(&dest, XcmConfig::UniversalLocation::get()).unwrap();
+				dest_beneficiary.reanchor(&dest, &XcmConfig::UniversalLocation::get()).unwrap();
 
 				let target_account_balance_before_teleport =
 					<pallet_balances::Pallet<Runtime>>::free_balance(&target_account);
@@ -245,6 +247,7 @@ pub fn teleports_for_native_asset_works<
 					native_asset_to_teleport_away <
 						target_account_balance_before_teleport - existential_deposit
 				);
+
 				assert_eq!(
 					RuntimeHelper::<Runtime>::do_teleport_assets::<HrmpChannelOpener>(
 						RuntimeHelper::<Runtime>::origin_of(target_account.clone()),
@@ -356,9 +359,9 @@ pub fn teleports_for_foreign_assets_works<
 	<WeightToFee as frame_support::weights::WeightToFee>::Balance: From<u128> + Into<u128>,
 	SovereignAccountOf: ConvertLocation<AccountIdOf<Runtime>>,
 	<Runtime as pallet_assets::Config<ForeignAssetsPalletInstance>>::AssetId:
-		From<MultiLocation> + Into<MultiLocation>,
+		From<xcm::v3::Location> + Into<xcm::v3::Location>,
 	<Runtime as pallet_assets::Config<ForeignAssetsPalletInstance>>::AssetIdParameter:
-		From<MultiLocation> + Into<MultiLocation>,
+		From<xcm::v3::Location> + Into<xcm::v3::Location>,
 	<Runtime as pallet_assets::Config<ForeignAssetsPalletInstance>>::Balance:
 		From<Balance> + Into<u128>,
 	<Runtime as frame_system::Config>::AccountId:
@@ -370,23 +373,25 @@ pub fn teleports_for_foreign_assets_works<
 {
 	// foreign parachain with the same consensus currency as asset
 	let foreign_para_id = 2222;
-	let foreign_asset_id_multilocation = MultiLocation {
+	let foreign_asset_id_location = xcm::v3::Location {
 		parents: 1,
-		interior: X2(Parachain(foreign_para_id), GeneralIndex(1234567)),
+		interior: [
+			xcm::v3::Junction::Parachain(foreign_para_id),
+			xcm::v3::Junction::GeneralIndex(1234567),
+		]
+		.into(),
 	};
 
 	// foreign creator, which can be sibling parachain to match ForeignCreators
-	let foreign_creator = MultiLocation { parents: 1, interior: X1(Parachain(foreign_para_id)) };
+	let foreign_creator = Location { parents: 1, interior: [Parachain(foreign_para_id)].into() };
 	let foreign_creator_as_account_id =
 		SovereignAccountOf::convert_location(&foreign_creator).expect("");
 
 	// we want to buy execution with local relay chain currency
 	let buy_execution_fee_amount =
 		WeightToFee::weight_to_fee(&Weight::from_parts(90_000_000_000, 0));
-	let buy_execution_fee = MultiAsset {
+	let buy_execution_fee =
-		id: Concrete(MultiLocation::parent()),
+		Asset { id: AssetId(Location::parent()), fun: Fungible(buy_execution_fee_amount) };
-		fun: Fungible(buy_execution_fee_amount),
-	};
 
 	let teleported_foreign_asset_amount = 10_000_000_000_000;
 	let runtime_para_id = 1000;
@@ -425,14 +430,14 @@ pub fn teleports_for_foreign_assets_works<
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&target_account
 				),
 				0.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&CheckingAccount::get()
 				),
 				0.into()
@@ -441,14 +446,14 @@ pub fn teleports_for_foreign_assets_works<
 			assert_total::<
 				pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>,
 				AccountIdOf<Runtime>,
-			>(foreign_asset_id_multilocation, 0, 0);
+			>(foreign_asset_id_location, 0, 0);
 
 			// create foreign asset (0 total issuance)
 			let asset_minimum_asset_balance = 3333333_u128;
 			assert_ok!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::force_create(
 					RuntimeHelper::<Runtime>::root_origin(),
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					asset_owner.into(),
 					false,
 					asset_minimum_asset_balance.into()
@@ -457,47 +462,52 @@ pub fn teleports_for_foreign_assets_works<
 			assert_total::<
 				pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>,
 				AccountIdOf<Runtime>,
-			>(foreign_asset_id_multilocation, 0, 0);
+			>(foreign_asset_id_location, 0, 0);
 			assert!(teleported_foreign_asset_amount > asset_minimum_asset_balance);
 
+			let foreign_asset_id_location_latest: Location =
+				foreign_asset_id_location.try_into().unwrap();
+
 			// 1. process received teleported assets from sibling parachain (foreign_para_id)
 			let xcm = Xcm(vec![
 				// BuyExecution with relaychain native token
 				WithdrawAsset(buy_execution_fee.clone().into()),
 				BuyExecution {
-					fees: MultiAsset {
+					fees: Asset {
-						id: Concrete(MultiLocation::parent()),
+						id: AssetId(Location::parent()),
 						fun: Fungible(buy_execution_fee_amount),
 					},
 					weight_limit: Limited(Weight::from_parts(403531000, 65536)),
 				},
 				// Process teleported asset
-				ReceiveTeleportedAsset(MultiAssets::from(vec![MultiAsset {
+				ReceiveTeleportedAsset(Assets::from(vec![Asset {
-					id: Concrete(foreign_asset_id_multilocation),
+					id: AssetId(foreign_asset_id_location_latest.clone()),
 					fun: Fungible(teleported_foreign_asset_amount),
 				}])),
 				DepositAsset {
 					assets: Wild(AllOf {
-						id: Concrete(foreign_asset_id_multilocation),
+						id: AssetId(foreign_asset_id_location_latest.clone()),
 						fun: WildFungibility::Fungible,
 					}),
-					beneficiary: MultiLocation {
+					beneficiary: Location {
 						parents: 0,
-						interior: X1(AccountId32 {
+						interior: [AccountId32 {
 							network: None,
 							id: target_account.clone().into(),
-						}),
+						}]
+						.into(),
 					},
 				},
 				ExpectTransactStatus(MaybeErrorCode::Success),
 			]);
-			let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+			let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
 
-			let outcome = XcmExecutor::<XcmConfig>::execute_xcm(
+			let outcome = XcmExecutor::<XcmConfig>::prepare_and_execute(
 				foreign_creator,
 				xcm,
-				hash,
+				&mut hash,
 				RuntimeHelper::<Runtime>::xcm_max_weight(XcmReceivedFrom::Sibling),
+				Weight::zero(),
 			);
 			assert_ok!(outcome.ensure_complete());
 
@@ -508,7 +518,7 @@ pub fn teleports_for_foreign_assets_works<
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&target_account
 				),
 				teleported_foreign_asset_amount.into()
@@ -520,7 +530,7 @@ pub fn teleports_for_foreign_assets_works<
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&CheckingAccount::get()
 				),
 				0.into()
@@ -530,25 +540,25 @@ pub fn teleports_for_foreign_assets_works<
 				pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>,
 				AccountIdOf<Runtime>,
 			>(
-				foreign_asset_id_multilocation,
+				foreign_asset_id_location,
 				teleported_foreign_asset_amount,
 				teleported_foreign_asset_amount,
 			);
 
 			// 2. try to teleport asset back to source parachain (foreign_para_id)
 			{
-				let dest = MultiLocation::new(1, X1(Parachain(foreign_para_id)));
+				let dest = Location::new(1, [Parachain(foreign_para_id)]);
-				let mut dest_beneficiary = MultiLocation::new(1, X1(Parachain(foreign_para_id)))
+				let mut dest_beneficiary = Location::new(1, [Parachain(foreign_para_id)])
 					.appended_with(AccountId32 {
 						network: None,
 						id: sp_runtime::AccountId32::new([3; 32]).into(),
 					})
 					.unwrap();
-				dest_beneficiary.reanchor(&dest, XcmConfig::UniversalLocation::get()).unwrap();
+				dest_beneficiary.reanchor(&dest, &XcmConfig::UniversalLocation::get()).unwrap();
 
 				let target_account_balance_before_teleport =
 					<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-						foreign_asset_id_multilocation.into(),
+						foreign_asset_id_location.into(),
 						&target_account,
 					);
 				let asset_to_teleport_away = asset_minimum_asset_balance * 3;
@@ -562,11 +572,11 @@ pub fn teleports_for_foreign_assets_works<
 				// Make sure the target account has enough native asset to pay for delivery fees
 				let delivery_fees =
 					xcm_helpers::transfer_assets_delivery_fees::<XcmConfig::XcmSender>(
-						(foreign_asset_id_multilocation, asset_to_teleport_away).into(),
+						(foreign_asset_id_location_latest.clone(), asset_to_teleport_away).into(),
 						0,
 						Unlimited,
-						dest_beneficiary,
+						dest_beneficiary.clone(),
-						dest,
+						dest.clone(),
 					);
 				<pallet_balances::Pallet<Runtime>>::mint_into(
 					&target_account,
@@ -578,7 +588,7 @@ pub fn teleports_for_foreign_assets_works<
 					RuntimeHelper::<Runtime>::origin_of(target_account.clone()),
 					dest,
 					dest_beneficiary,
-					(foreign_asset_id_multilocation, asset_to_teleport_away),
+					(foreign_asset_id_location_latest.clone(), asset_to_teleport_away),
 					Some((runtime_para_id, foreign_para_id)),
 					included_head,
 					&alice,
@@ -587,14 +597,14 @@ pub fn teleports_for_foreign_assets_works<
 				// check balances
 				assert_eq!(
 					<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-						foreign_asset_id_multilocation.into(),
+						foreign_asset_id_location.into(),
 						&target_account
 					),
 					(target_account_balance_before_teleport - asset_to_teleport_away.into())
 				);
 				assert_eq!(
 					<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-						foreign_asset_id_multilocation.into(),
+						foreign_asset_id_location.into(),
 						&CheckingAccount::get()
 					),
 					0.into()
@@ -604,7 +614,7 @@ pub fn teleports_for_foreign_assets_works<
 					pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>,
 					AccountIdOf<Runtime>,
 				>(
-					foreign_asset_id_multilocation,
+					foreign_asset_id_location,
 					teleported_foreign_asset_amount - asset_to_teleport_away,
 					teleported_foreign_asset_amount - asset_to_teleport_away,
 				);
@@ -717,17 +727,19 @@ pub fn asset_transactor_transfer_with_local_consensus_currency_works<Runtime, Xc
 
 			// transfer_asset (deposit/withdraw) ALICE -> BOB
 			let _ = RuntimeHelper::<XcmConfig>::do_transfer(
-				MultiLocation {
+				Location {
 					parents: 0,
-					interior: X1(AccountId32 { network: None, id: source_account.clone().into() }),
+					interior: [AccountId32 { network: None, id: source_account.clone().into() }]
+						.into(),
 				},
-				MultiLocation {
+				Location {
 					parents: 0,
-					interior: X1(AccountId32 { network: None, id: target_account.clone().into() }),
+					interior: [AccountId32 { network: None, id: target_account.clone().into() }]
+						.into(),
 				},
 				// local_consensus_currency_asset, e.g.: relaychain token (KSM, DOT, ...)
 				(
-					MultiLocation { parents: 1, interior: Here },
+					Location { parents: 1, interior: Here },
 					(BalanceOf::<Runtime>::from(1_u128) * unit).into(),
 				),
 			)
@@ -779,7 +791,7 @@ macro_rules! include_asset_transactor_transfer_with_local_consensus_currency_wor
 	}
 );
 
-///Test-case makes sure that `Runtime`'s `xcm::AssetTransactor` can handle native relay chain
+/// Test-case makes sure that `Runtime`'s `xcm::AssetTransactor` can handle native relay chain
 /// currency
 pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 	Runtime,
@@ -820,8 +832,8 @@ pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 	<<Runtime as frame_system::Config>::Lookup as StaticLookup>::Source:
 		From<<Runtime as frame_system::Config>::AccountId>,
 	AssetsPalletInstance: 'static,
-	AssetId: Clone + Copy,
+	AssetId: Clone,
-	AssetIdConverter: MaybeEquivalence<MultiLocation, AssetId>,
+	AssetIdConverter: MaybeEquivalence<Location, AssetId>,
 {
 	ExtBuilder::<Runtime>::default()
 		.with_collators(collator_session_keys.collators())
@@ -836,10 +848,10 @@ pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 		.execute_with(|| {
 			// create  some asset class
 			let asset_minimum_asset_balance = 3333333_u128;
-			let asset_id_as_multilocation = AssetIdConverter::convert_back(&asset_id).unwrap();
+			let asset_id_as_location = AssetIdConverter::convert_back(&asset_id).unwrap();
 			assert_ok!(<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::force_create(
 				RuntimeHelper::<Runtime>::root_origin(),
-				asset_id.into(),
+				asset_id.clone().into(),
 				asset_owner.clone().into(),
 				false,
 				asset_minimum_asset_balance.into()
@@ -848,7 +860,7 @@ pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 			// We first mint enough asset for the account to exist for assets
 			assert_ok!(<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::mint(
 				RuntimeHelper::<Runtime>::origin_of(asset_owner.clone()),
-				asset_id.into(),
+				asset_id.clone().into(),
 				alice_account.clone().into(),
 				(6 * asset_minimum_asset_balance).into()
 			));
@@ -856,28 +868,28 @@ pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 			// check Assets before
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::balance(
-					asset_id.into(),
+					asset_id.clone().into(),
 					&alice_account
 				),
 				(6 * asset_minimum_asset_balance).into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::balance(
-					asset_id.into(),
+					asset_id.clone().into(),
 					&bob_account
 				),
 				0.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::balance(
-					asset_id.into(),
+					asset_id.clone().into(),
 					&charlie_account
 				),
 				0.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::balance(
-					asset_id.into(),
+					asset_id.clone().into(),
 					&asset_owner
 				),
 				0.into()
@@ -904,21 +916,20 @@ pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 			// ExistentialDeposit)
 			assert_noop!(
 				RuntimeHelper::<XcmConfig>::do_transfer(
-					MultiLocation {
+					Location {
 						parents: 0,
-						interior: X1(AccountId32 {
+						interior: [AccountId32 { network: None, id: alice_account.clone().into() }]
-							network: None,
+							.into(),
-							id: alice_account.clone().into()
-						}),
 					},
-					MultiLocation {
+					Location {
 						parents: 0,
-						interior: X1(AccountId32 {
+						interior: [AccountId32 {
 							network: None,
 							id: charlie_account.clone().into()
-						}),
+						}]
+						.into(),
 					},
-					(asset_id_as_multilocation, asset_minimum_asset_balance),
+					(asset_id_as_location.clone(), asset_minimum_asset_balance),
 				),
 				XcmError::FailedToTransactAsset(Into::<&str>::into(
 					sp_runtime::TokenError::CannotCreate
@@ -928,18 +939,17 @@ pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 			// transfer_asset (deposit/withdraw) ALICE -> BOB (ok - has ExistentialDeposit)
 			assert!(matches!(
 				RuntimeHelper::<XcmConfig>::do_transfer(
-					MultiLocation {
+					Location {
 						parents: 0,
-						interior: X1(AccountId32 {
+						interior: [AccountId32 { network: None, id: alice_account.clone().into() }]
-							network: None,
+							.into(),
-							id: alice_account.clone().into()
-						}),
 					},
-					MultiLocation {
+					Location {
 						parents: 0,
-						interior: X1(AccountId32 { network: None, id: bob_account.clone().into() }),
+						interior: [AccountId32 { network: None, id: bob_account.clone().into() }]
+							.into(),
 					},
-					(asset_id_as_multilocation, asset_minimum_asset_balance),
+					(asset_id_as_location, asset_minimum_asset_balance),
 				),
 				Ok(_)
 			));
@@ -947,21 +957,21 @@ pub fn asset_transactor_transfer_with_pallet_assets_instance_works<
 			// check Assets after
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::balance(
-					asset_id.into(),
+					asset_id.clone().into(),
 					&alice_account
 				),
 				(5 * asset_minimum_asset_balance).into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::balance(
-					asset_id.into(),
+					asset_id.clone().into(),
 					&bob_account
 				),
 				asset_minimum_asset_balance.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, AssetsPalletInstance>>::balance(
-					asset_id.into(),
+					asset_id.clone().into(),
 					&charlie_account
 				),
 				0.into()
@@ -1093,26 +1103,23 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 	<<Runtime as frame_system::Config>::Lookup as StaticLookup>::Source:
 		From<<Runtime as frame_system::Config>::AccountId>,
 	ForeignAssetsPalletInstance: 'static,
-	AssetId: Clone + Copy,
+	AssetId: Clone,
-	AssetIdConverter: MaybeEquivalence<MultiLocation, AssetId>,
+	AssetIdConverter: MaybeEquivalence<Location, AssetId>,
 {
-	// foreign parachain with the same consensus currency as asset
+	// foreign parachain with the same consenus currency as asset
-	let foreign_asset_id_multilocation =
+	let foreign_asset_id_location = Location::new(1, [Parachain(2222), GeneralIndex(1234567)]);
-		MultiLocation { parents: 1, interior: X2(Parachain(2222), GeneralIndex(1234567)) };
+	let asset_id = AssetIdConverter::convert(&foreign_asset_id_location).unwrap();
-	let asset_id = AssetIdConverter::convert(&foreign_asset_id_multilocation).unwrap();
 
 	// foreign creator, which can be sibling parachain to match ForeignCreators
-	let foreign_creator = MultiLocation { parents: 1, interior: X1(Parachain(2222)) };
+	let foreign_creator = Location { parents: 1, interior: [Parachain(2222)].into() };
 	let foreign_creator_as_account_id =
 		SovereignAccountOf::convert_location(&foreign_creator).expect("");
 
 	// we want to buy execution with local relay chain currency
 	let buy_execution_fee_amount =
 		WeightToFee::weight_to_fee(&Weight::from_parts(90_000_000_000, 0));
-	let buy_execution_fee = MultiAsset {
+	let buy_execution_fee =
-		id: Concrete(MultiLocation::parent()),
+		Asset { id: AssetId(Location::parent()), fun: Fungible(buy_execution_fee_amount) };
-		fun: Fungible(buy_execution_fee_amount),
-	};
 
 	const ASSET_NAME: &str = "My super coin";
 	const ASSET_SYMBOL: &str = "MY_S_COIN";
@@ -1152,7 +1159,7 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 				Runtime,
 				ForeignAssetsPalletInstance,
 			>::create {
-				id: asset_id.into(),
+				id: asset_id.clone().into(),
 				// admin as sovereign_account
 				admin: foreign_creator_as_account_id.clone().into(),
 				min_balance: 1.into(),
@@ -1162,7 +1169,7 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 				Runtime,
 				ForeignAssetsPalletInstance,
 			>::set_metadata {
-				id: asset_id.into(),
+				id: asset_id.clone().into(),
 				name: Vec::from(ASSET_NAME),
 				symbol: Vec::from(ASSET_SYMBOL),
 				decimals: 12,
@@ -1172,7 +1179,7 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 				Runtime,
 				ForeignAssetsPalletInstance,
 			>::set_team {
-				id: asset_id.into(),
+				id: asset_id.clone().into(),
 				issuer: foreign_creator_as_account_id.clone().into(),
 				admin: foreign_creator_as_account_id.clone().into(),
 				freezer: bob_account.clone().into(),
@@ -1202,14 +1209,15 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 			]);
 
 			// messages with different consensus should go through the local bridge-hub
-			let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+			let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
 
 			// execute xcm as XcmpQueue would do
-			let outcome = XcmExecutor::<XcmConfig>::execute_xcm(
+			let outcome = XcmExecutor::<XcmConfig>::prepare_and_execute(
-				foreign_creator,
+				foreign_creator.clone(),
 				xcm,
-				hash,
+				&mut hash,
 				RuntimeHelper::<Runtime>::xcm_max_weight(XcmReceivedFrom::Sibling),
+				Weight::zero(),
 			);
 			assert_ok!(outcome.ensure_complete());
 
@@ -1230,25 +1238,25 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 			use frame_support::traits::fungibles::roles::Inspect as InspectRoles;
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::owner(
-					asset_id.into()
+					asset_id.clone().into()
 				),
 				Some(foreign_creator_as_account_id.clone())
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::admin(
-					asset_id.into()
+					asset_id.clone().into()
 				),
 				Some(foreign_creator_as_account_id.clone())
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::issuer(
-					asset_id.into()
+					asset_id.clone().into()
 				),
 				Some(foreign_creator_as_account_id.clone())
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::freezer(
-					asset_id.into()
+					asset_id.clone().into()
 				),
 				Some(bob_account.clone())
 			);
@@ -1262,13 +1270,13 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 			assert_metadata::<
 				pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>,
 				AccountIdOf<Runtime>,
-			>(asset_id, ASSET_NAME, ASSET_SYMBOL, 12);
+			>(asset_id.clone(), ASSET_NAME, ASSET_SYMBOL, 12);
 
 			// check if changed freezer, can freeze
 			assert_noop!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::freeze(
 					RuntimeHelper::<Runtime>::origin_of(bob_account),
-					asset_id.into(),
+					asset_id.clone().into(),
 					alice_account.clone().into()
 				),
 				pallet_assets::Error::<Runtime, ForeignAssetsPalletInstance>::NoAccount
@@ -1284,9 +1292,9 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 
 			// lets try create asset for different parachain(3333) (foreign_creator(2222) can create
 			// just his assets)
-			let foreign_asset_id_multilocation =
+			let foreign_asset_id_location =
-				MultiLocation { parents: 1, interior: X2(Parachain(3333), GeneralIndex(1234567)) };
+				Location { parents: 1, interior: [Parachain(3333), GeneralIndex(1234567)].into() };
-			let asset_id = AssetIdConverter::convert(&foreign_asset_id_multilocation).unwrap();
+			let asset_id = AssetIdConverter::convert(&foreign_asset_id_location).unwrap();
 
 			// prepare data for xcm::Transact(create)
 			let foreign_asset_create = runtime_call_encode(pallet_assets::Call::<
@@ -1310,14 +1318,15 @@ pub fn create_and_manage_foreign_assets_for_local_consensus_parachain_assets_wor
 			]);
 
 			// messages with different consensus should go through the local bridge-hub
-			let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+			let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
 
 			// execute xcm as XcmpQueue would do
-			let outcome = XcmExecutor::<XcmConfig>::execute_xcm(
+			let outcome = XcmExecutor::<XcmConfig>::prepare_and_execute(
 				foreign_creator,
 				xcm,
-				hash,
+				&mut hash,
 				RuntimeHelper::<Runtime>::xcm_max_weight(XcmReceivedFrom::Sibling),
+				Weight::zero(),
 			);
 			assert_ok!(outcome.ensure_complete());
 
@@ -1441,15 +1450,15 @@ pub fn reserve_transfer_native_asset_to_non_teleport_para_works<
 			// reserve-transfer native asset with local reserve to remote parachain (2345)
 
 			let other_para_id = 2345;
-			let native_asset = MultiLocation::parent();
+			let native_asset = Location::parent();
-			let dest = MultiLocation::new(1, X1(Parachain(other_para_id)));
+			let dest = Location::new(1, [Parachain(other_para_id)]);
-			let mut dest_beneficiary = MultiLocation::new(1, X1(Parachain(other_para_id)))
+			let mut dest_beneficiary = Location::new(1, [Parachain(other_para_id)])
 				.appended_with(AccountId32 {
 					network: None,
 					id: sp_runtime::AccountId32::new([3; 32]).into(),
 				})
 				.unwrap();
-			dest_beneficiary.reanchor(&dest, XcmConfig::UniversalLocation::get()).unwrap();
+			dest_beneficiary.reanchor(&dest, &XcmConfig::UniversalLocation::get()).unwrap();
 
 			let reserve_account = LocationToAccountId::convert_location(&dest)
 				.expect("Sovereign account for reserves");
@@ -1495,17 +1504,15 @@ pub fn reserve_transfer_native_asset_to_non_teleport_para_works<
 			);
 
 			// local native asset (pallet_balances)
-			let asset_to_transfer = MultiAsset {
+			let asset_to_transfer =
-				fun: Fungible(balance_to_transfer.into()),
+				Asset { fun: Fungible(balance_to_transfer.into()), id: AssetId(native_asset) };
-				id: Concrete(native_asset),
-			};
 
 			// pallet_xcm call reserve transfer
 			assert_ok!(<pallet_xcm::Pallet<Runtime>>::limited_reserve_transfer_assets(
 				RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::origin_of(alice_account.clone()),
-				Box::new(dest.into_versioned()),
+				Box::new(dest.clone().into_versioned()),
-				Box::new(dest_beneficiary.into_versioned()),
+				Box::new(dest_beneficiary.clone().into_versioned()),
-				Box::new(VersionedMultiAssets::from(MultiAssets::from(asset_to_transfer))),
+				Box::new(VersionedAssets::from(Assets::from(asset_to_transfer))),
 				0,
 				weight_limit,
 			));
@@ -1535,9 +1542,12 @@ pub fn reserve_transfer_native_asset_to_non_teleport_para_works<
 			)
 			.unwrap();
 
+			let v4_xcm: Xcm<()> = xcm_sent.clone().try_into().unwrap();
+			dbg!(&v4_xcm);
+
 			let delivery_fees = get_fungible_delivery_fees::<
 				<XcmConfig as xcm_executor::Config>::XcmSender,
-			>(dest, Xcm::try_from(xcm_sent.clone()).unwrap());
+			>(dest.clone(), Xcm::try_from(xcm_sent.clone()).unwrap());
 
 			assert_eq!(
 				xcm_sent_message_hash,
@@ -1547,8 +1557,8 @@ pub fn reserve_transfer_native_asset_to_non_teleport_para_works<
 
 			// check sent XCM Program to other parachain
 			println!("reserve_transfer_native_asset_works sent xcm: {:?}", xcm_sent);
-			let reserve_assets_deposited = MultiAssets::from(vec![MultiAsset {
+			let reserve_assets_deposited = Assets::from(vec![Asset {
-				id: Concrete(MultiLocation { parents: 1, interior: Here }),
+				id: AssetId(Location { parents: 1, interior: Here }),
 				fun: Fungible(1000000000000),
 			}]);
 

cumulus/parachains/runtimes/assets/test-utils/src/test_cases_over_bridge.rs

@@ -31,15 +31,15 @@ use parachains_runtimes_test_utils::{
 };
 use sp_runtime::{traits::StaticLookup, Saturating};
 use sp_std::ops::Mul;
-use xcm::{latest::prelude::*, VersionedMultiAssets};
+use xcm::{latest::prelude::*, VersionedAssets};
 use xcm_builder::{CreateMatcher, MatchXcm};
 use xcm_executor::{traits::ConvertLocation, XcmExecutor};
 
 pub struct TestBridgingConfig {
 	pub bridged_network: NetworkId,
 	pub local_bridge_hub_para_id: u32,
-	pub local_bridge_hub_location: MultiLocation,
+	pub local_bridge_hub_location: Location,
-	pub bridged_target_location: MultiLocation,
+	pub bridged_target_location: Location,
 }
 
 /// Test-case makes sure that `Runtime` can initiate **reserve transfer assets** over bridge.
@@ -117,7 +117,7 @@ pub fn limited_reserve_transfer_assets_for_native_asset_works<
 				LocationToAccountId::convert_location(&target_location_from_different_consensus)
 					.expect("Sovereign account for reserves");
 			let balance_to_transfer = 1_000_000_000_000_u128;
-			let native_asset = MultiLocation::parent();
+			let native_asset = Location::parent();
 
 			// open HRMP to bridge hub
 			mock_open_hrmp_channel::<Runtime, HrmpChannelOpener>(
@@ -163,35 +163,33 @@ pub fn limited_reserve_transfer_assets_for_native_asset_works<
 				.unwrap_or(0.into());
 
 			// local native asset (pallet_balances)
-			let asset_to_transfer = MultiAsset {
+			let asset_to_transfer =
-				fun: Fungible(balance_to_transfer.into()),
+				Asset { fun: Fungible(balance_to_transfer.into()), id: native_asset.into() };
-				id: Concrete(native_asset),
-			};
 
 			// destination is (some) account relative to the destination different consensus
-			let target_destination_account = MultiLocation {
+			let target_destination_account = Location::new(
-				parents: 0,
+				0,
-				interior: X1(AccountId32 {
+				[AccountId32 {
 					network: Some(bridged_network),
 					id: sp_runtime::AccountId32::new([3; 32]).into(),
-				}),
+				}],
-			};
+			);
 
-			let assets_to_transfer = MultiAssets::from(asset_to_transfer);
+			let assets_to_transfer = Assets::from(asset_to_transfer);
 			let mut expected_assets = assets_to_transfer.clone();
 			let context = XcmConfig::UniversalLocation::get();
 			expected_assets
-				.reanchor(&target_location_from_different_consensus, context)
+				.reanchor(&target_location_from_different_consensus, &context)
 				.unwrap();
 
-			let expected_beneficiary = target_destination_account;
+			let expected_beneficiary = target_destination_account.clone();
 
 			// do pallet_xcm call reserve transfer
 			assert_ok!(<pallet_xcm::Pallet<Runtime>>::limited_reserve_transfer_assets(
 				RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::origin_of(alice_account.clone()),
-				Box::new(target_location_from_different_consensus.into_versioned()),
+				Box::new(target_location_from_different_consensus.clone().into_versioned()),
 				Box::new(target_destination_account.into_versioned()),
-				Box::new(VersionedMultiAssets::from(assets_to_transfer)),
+				Box::new(VersionedAssets::from(assets_to_transfer)),
 				0,
 				weight_limit,
 			));
@@ -266,13 +264,17 @@ pub fn limited_reserve_transfer_assets_for_native_asset_works<
 					let (_, target_location_junctions_without_global_consensus) =
 						target_location_from_different_consensus
 							.interior
+							.clone()
 							.split_global()
 							.expect("split works");
 					assert_eq!(destination, &target_location_junctions_without_global_consensus);
 					// Call `SendXcm::validate` to get delivery fees.
 					delivery_fees = get_fungible_delivery_fees::<
 						<XcmConfig as xcm_executor::Config>::XcmSender,
-					>(target_location_from_different_consensus, inner_xcm.clone());
+					>(
+						target_location_from_different_consensus.clone(),
+						inner_xcm.clone(),
+					);
 					assert_matches_reserve_asset_deposited_instructions(
 						inner_xcm,
 						&expected_assets,
@@ -322,10 +324,10 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 	target_account: AccountIdOf<Runtime>,
 	block_author_account: AccountIdOf<Runtime>,
 	(
-		foreign_asset_id_multilocation,
+		foreign_asset_id_location,
 		transfered_foreign_asset_id_amount,
 		foreign_asset_id_minimum_balance,
-	): (MultiLocation, u128, u128),
+	): (xcm::v3::Location, u128, u128),
 	prepare_configuration: fn() -> TestBridgingConfig,
 	(bridge_instance, universal_origin, descend_origin): (Junctions, Junction, Junctions), /* bridge adds origin manipulation on the way */
 ) where
@@ -347,9 +349,9 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 	XcmConfig: xcm_executor::Config,
 	LocationToAccountId: ConvertLocation<AccountIdOf<Runtime>>,
 	<Runtime as pallet_assets::Config<ForeignAssetsPalletInstance>>::AssetId:
-		From<MultiLocation> + Into<MultiLocation>,
+		From<xcm::v3::Location> + Into<xcm::v3::Location>,
 	<Runtime as pallet_assets::Config<ForeignAssetsPalletInstance>>::AssetIdParameter:
-		From<MultiLocation> + Into<MultiLocation>,
+		From<xcm::v3::Location> + Into<xcm::v3::Location>,
 	<Runtime as pallet_assets::Config<ForeignAssetsPalletInstance>>::Balance:
 		From<Balance> + Into<u128> + From<u128>,
 	<Runtime as frame_system::Config>::AccountId: Into<<<Runtime as frame_system::Config>::RuntimeOrigin as OriginTrait>::AccountId>
@@ -357,7 +359,7 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 	<<Runtime as frame_system::Config>::Lookup as StaticLookup>::Source:
 		From<<Runtime as frame_system::Config>::AccountId>,
 	<Runtime as pallet_asset_conversion::Config>::AssetKind:
-		From<MultiLocation> + Into<MultiLocation>,
+		From<xcm::v3::Location> + Into<xcm::v3::Location>,
 	<Runtime as pallet_asset_conversion::Config>::Balance: From<Balance>,
 	ForeignAssetsPalletInstance: 'static,
 {
@@ -385,7 +387,7 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 			// sovereign account as foreign asset owner (can be whoever for this scenario, doesnt
 			// matter)
 			let sovereign_account_as_owner_of_foreign_asset =
-				LocationToAccountId::convert_location(&MultiLocation::parent()).unwrap();
+				LocationToAccountId::convert_location(&Location::parent()).unwrap();
 
 			// staking pot account for collecting local native fees from `BuyExecution`
 			let staking_pot = <pallet_collator_selection::Pallet<Runtime>>::account_id();
@@ -398,16 +400,16 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 			assert_ok!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::force_create(
 					RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::root_origin(),
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					sovereign_account_as_owner_of_foreign_asset.clone().into(),
 					true, // is_sufficient=true
 					foreign_asset_id_minimum_balance.into()
 				)
 			);
 
-			// setup a pool to pay fees with `foreign_asset_id_multilocation` tokens
+			// setup a pool to pay fees with `foreign_asset_id_location` tokens
 			let pool_owner: AccountIdOf<Runtime> = [1u8; 32].into();
-			let native_asset = MultiLocation::parent();
+			let native_asset = xcm::v3::Location::parent();
 			let pool_liquidity: u128 =
 				existential_deposit.into().max(foreign_asset_id_minimum_balance).mul(100_000);
 
@@ -420,7 +422,7 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 				RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::origin_of(
 					sovereign_account_as_owner_of_foreign_asset
 				),
-				foreign_asset_id_multilocation.into(),
+				foreign_asset_id_location.into(),
 				pool_owner.clone().into(),
 				(foreign_asset_id_minimum_balance + pool_liquidity).mul(2).into(),
 			));
@@ -428,13 +430,13 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 			assert_ok!(<pallet_asset_conversion::Pallet<Runtime>>::create_pool(
 				RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::origin_of(pool_owner.clone()),
 				Box::new(native_asset.into()),
-				Box::new(foreign_asset_id_multilocation.into())
+				Box::new(foreign_asset_id_location.into())
 			));
 
 			assert_ok!(<pallet_asset_conversion::Pallet<Runtime>>::add_liquidity(
 				RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::origin_of(pool_owner.clone()),
 				Box::new(native_asset.into()),
-				Box::new(foreign_asset_id_multilocation.into()),
+				Box::new(foreign_asset_id_location.into()),
 				pool_liquidity.into(),
 				pool_liquidity.into(),
 				1.into(),
@@ -459,34 +461,37 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 			// ForeignAssets balances before
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&target_account
 				),
 				0.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&block_author_account
 				),
 				0.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&staking_pot
 				),
 				0.into()
 			);
 
-			let expected_assets = MultiAssets::from(vec![MultiAsset {
+			let foreign_asset_id_location_latest: Location =
-				id: Concrete(foreign_asset_id_multilocation),
+				foreign_asset_id_location.try_into().unwrap();
+
+			let expected_assets = Assets::from(vec![Asset {
+				id: AssetId(foreign_asset_id_location_latest.clone()),
 				fun: Fungible(transfered_foreign_asset_id_amount),
 			}]);
-			let expected_beneficiary = MultiLocation {
+			let expected_beneficiary = Location::new(
-				parents: 0,
+				0,
-				interior: X1(AccountId32 { network: None, id: target_account.clone().into() }),
+				[AccountId32 { network: None, id: target_account.clone().into() }],
-			};
+			);
 
 			// Call received XCM execution
 			let xcm = Xcm(vec![
@@ -496,13 +501,16 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 				ReserveAssetDeposited(expected_assets.clone()),
 				ClearOrigin,
 				BuyExecution {
-					fees: MultiAsset {
+					fees: Asset {
-						id: Concrete(foreign_asset_id_multilocation),
+						id: AssetId(foreign_asset_id_location_latest.clone()),
 						fun: Fungible(transfered_foreign_asset_id_amount),
 					},
 					weight_limit: Unlimited,
 				},
-				DepositAsset { assets: Wild(AllCounted(1)), beneficiary: expected_beneficiary },
+				DepositAsset {
+					assets: Wild(AllCounted(1)),
+					beneficiary: expected_beneficiary.clone(),
+				},
 				SetTopic([
 					220, 188, 144, 32, 213, 83, 111, 175, 44, 210, 111, 19, 90, 165, 191, 112, 140,
 					247, 192, 124, 42, 17, 153, 141, 114, 34, 189, 20, 83, 69, 237, 173,
@@ -514,16 +522,17 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 				&expected_beneficiary,
 			);
 
-			let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+			let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
 
 			// execute xcm as XcmpQueue would do
-			let outcome = XcmExecutor::<XcmConfig>::execute_xcm(
+			let outcome = XcmExecutor::<XcmConfig>::prepare_and_execute(
 				local_bridge_hub_location,
 				xcm,
-				hash,
+				&mut hash,
 				RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::xcm_max_weight(
 					XcmReceivedFrom::Sibling,
 				),
+				Weight::zero(),
 			);
 			assert_ok!(outcome.ensure_complete());
 
@@ -545,20 +554,20 @@ pub fn receive_reserve_asset_deposited_from_different_consensus_works<
 			// ForeignAssets balances after
 			assert!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&target_account
 				) > 0.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&staking_pot
 				),
 				0.into()
 			);
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
-					foreign_asset_id_multilocation.into(),
+					foreign_asset_id_location.into(),
 					&block_author_account
 				),
 				0.into()
@@ -614,14 +623,15 @@ pub fn report_bridge_status_from_xcm_bridge_router_works<
 
 				// Call received XCM execution
 				let xcm = if is_congested { congested_message() } else { uncongested_message() };
-				let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+				let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
 
 				// execute xcm as XcmpQueue would do
-				let outcome = XcmExecutor::<XcmConfig>::execute_xcm(
+				let outcome = XcmExecutor::<XcmConfig>::prepare_and_execute(
 					local_bridge_hub_location,
 					xcm,
-					hash,
+					&mut hash,
 					RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::xcm_max_weight(XcmReceivedFrom::Sibling),
+					Weight::zero(),
 				);
 				assert_ok!(outcome.ensure_complete());
 				assert_eq!(is_congested, pallet_xcm_bridge_hub_router::Pallet::<Runtime, XcmBridgeHubRouterInstance>::bridge().is_congested);

cumulus/parachains/runtimes/assets/test-utils/src/xcm_helpers.rs

@@ -23,11 +23,11 @@ use xcm::latest::prelude::*;
 /// Because it returns only a `u128`, it assumes delivery fees are only paid
 /// in one asset and that asset is known.
 pub fn transfer_assets_delivery_fees<S: SendXcm>(
-	assets: MultiAssets,
+	assets: Assets,
 	fee_asset_item: u32,
 	weight_limit: WeightLimit,
-	beneficiary: MultiLocation,
+	beneficiary: Location,
-	destination: MultiLocation,
+	destination: Location,
 ) -> u128 {
 	let message = teleport_assets_dummy_message(assets, fee_asset_item, weight_limit, beneficiary);
 	get_fungible_delivery_fees::<S>(destination, message)
@@ -35,7 +35,7 @@ pub fn transfer_assets_delivery_fees<S: SendXcm>(
 
 /// Returns the delivery fees amount for a query response as a result of the execution
 /// of a `ExpectError` instruction with no error.
-pub fn query_response_delivery_fees<S: SendXcm>(querier: MultiLocation) -> u128 {
+pub fn query_response_delivery_fees<S: SendXcm>(querier: Location) -> u128 {
 	// Message to calculate delivery fees, it's encoded size is what's important.
 	// This message reports that there was no error, if an error is reported, the encoded size would
 	// be different.
@@ -45,7 +45,7 @@ pub fn query_response_delivery_fees<S: SendXcm>(querier: MultiLocation) -> u128
 			query_id: 0, // Dummy query id
 			response: Response::ExecutionResult(None),
 			max_weight: Weight::zero(),
-			querier: Some(querier),
+			querier: Some(querier.clone()),
 		},
 		SetTopic([0u8; 32]), // Dummy topic
 	]);
@@ -55,9 +55,9 @@ pub fn query_response_delivery_fees<S: SendXcm>(querier: MultiLocation) -> u128
 /// Returns the delivery fees amount for the execution of `PayOverXcm`
 pub fn pay_over_xcm_delivery_fees<S: SendXcm>(
 	interior: Junctions,
-	destination: MultiLocation,
+	destination: Location,
-	beneficiary: MultiLocation,
+	beneficiary: Location,
-	asset: MultiAsset,
+	asset: Asset,
 ) -> u128 {
 	// This is a dummy message.
 	// The encoded size is all that matters for delivery fees.
@@ -66,7 +66,11 @@ pub fn pay_over_xcm_delivery_fees<S: SendXcm>(
 		UnpaidExecution { weight_limit: Unlimited, check_origin: None },
 		SetAppendix(Xcm(vec![
 			SetFeesMode { jit_withdraw: true },
-			ReportError(QueryResponseInfo { destination, query_id: 0, max_weight: Weight::zero() }),
+			ReportError(QueryResponseInfo {
+				destination: destination.clone(),
+				query_id: 0,
+				max_weight: Weight::zero(),
+			}),
 		])),
 		TransferAsset { beneficiary, assets: vec![asset].into() },
 	]);
@@ -78,10 +82,10 @@ pub fn pay_over_xcm_delivery_fees<S: SendXcm>(
 /// However, it should have the same encoded size, which is what matters for delivery fees.
 /// Also has same encoded size as the one created by the reserve transfer assets extrinsic.
 fn teleport_assets_dummy_message(
-	assets: MultiAssets,
+	assets: Assets,
 	fee_asset_item: u32,
 	weight_limit: WeightLimit,
-	beneficiary: MultiLocation,
+	beneficiary: Location,
 ) -> Xcm<()> {
 	Xcm(vec![
 		ReceiveTeleportedAsset(assets.clone()), // Same encoded size as `ReserveAssetDeposited`
@@ -93,7 +97,7 @@ fn teleport_assets_dummy_message(
 }
 
 /// Given a message, a sender, and a destination, it returns the delivery fees
-fn get_fungible_delivery_fees<S: SendXcm>(destination: MultiLocation, message: Xcm<()>) -> u128 {
+fn get_fungible_delivery_fees<S: SendXcm>(destination: Location, message: Xcm<()>) -> u128 {
 	let Ok((_, delivery_fees)) = validate_send::<S>(destination, message) else {
 		unreachable!("message can be sent; qed")
 	};

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/bridge_to_bulletin_config.rs

@@ -48,7 +48,7 @@ use frame_support::{parameter_types, traits::PalletInfoAccess};
 use sp_runtime::RuntimeDebug;
 use xcm::{
 	latest::prelude::*,
-	prelude::{InteriorMultiLocation, NetworkId},
+	prelude::{InteriorLocation, NetworkId},
 };
 use xcm_builder::BridgeBlobDispatcher;
 
@@ -65,16 +65,16 @@ parameter_types! {
 	/// Bridge specific chain (network) identifier of the Rococo Bulletin Chain.
 	pub const RococoBulletinChainId: bp_runtime::ChainId = bp_runtime::POLKADOT_BULLETIN_CHAIN_ID;
 	/// Interior location (relative to this runtime) of the with-RococoBulletin messages pallet.
-	pub BridgeRococoToRococoBulletinMessagesPalletInstance: InteriorMultiLocation = X1(
+	pub BridgeRococoToRococoBulletinMessagesPalletInstance: InteriorLocation = [
 		PalletInstance(<BridgeRococoBulletinMessages as PalletInfoAccess>::index() as u8)
-	);
+	].into();
 	/// Rococo Bulletin Network identifier.
 	pub RococoBulletinGlobalConsensusNetwork: NetworkId = NetworkId::PolkadotBulletin;
 	/// Relative location of the Rococo Bulletin chain.
-	pub RococoBulletinGlobalConsensusNetworkLocation: MultiLocation = MultiLocation {
+	pub RococoBulletinGlobalConsensusNetworkLocation: Location = Location::new(
-		parents: 2,
+		2,
-		interior: X1(GlobalConsensus(RococoBulletinGlobalConsensusNetwork::get()))
+		[GlobalConsensus(RococoBulletinGlobalConsensusNetwork::get())]
-	};
+	);
 	/// All active lanes that the current bridge supports.
 	pub ActiveOutboundLanesToRococoBulletin: &'static [bp_messages::LaneId]
 		= &[XCM_LANE_FOR_ROCOCO_PEOPLE_TO_ROCOCO_BULLETIN];
@@ -94,11 +94,11 @@ parameter_types! {
 	/// A route (XCM location and bridge lane) that the Rococo People Chain -> Rococo Bulletin Chain
 	/// message is following.
 	pub FromRococoPeopleToRococoBulletinRoute: SenderAndLane = SenderAndLane::new(
-		ParentThen(X1(Parachain(RococoPeopleParaId::get().into()))).into(),
+		ParentThen(Parachain(RococoPeopleParaId::get().into()).into()).into(),
 		XCM_LANE_FOR_ROCOCO_PEOPLE_TO_ROCOCO_BULLETIN,
 	);
 	/// All active routes and their destinations.
-	pub ActiveLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))> = sp_std::vec![
+	pub ActiveLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorLocation))> = sp_std::vec![
 			(
 				FromRococoPeopleToRococoBulletinRoute::get(),
 				(RococoBulletinGlobalConsensusNetwork::get(), Here)
@@ -282,11 +282,11 @@ mod tests {
 			PriorityBoostPerMessage,
 		>(FEE_BOOST_PER_MESSAGE);
 
-		assert_eq!(
+		let expected: InteriorLocation = PalletInstance(
-			BridgeRococoToRococoBulletinMessagesPalletInstance::get(),
+			bp_bridge_hub_rococo::WITH_BRIDGE_ROCOCO_TO_BULLETIN_MESSAGES_PALLET_INDEX,
-			X1(PalletInstance(
+		)
-				bp_bridge_hub_rococo::WITH_BRIDGE_ROCOCO_TO_BULLETIN_MESSAGES_PALLET_INDEX
+		.into();
-			))
+
-		);
+		assert_eq!(BridgeRococoToRococoBulletinMessagesPalletInstance::get(), expected,);
 	}
 }

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/bridge_to_westend_config.rs

@@ -48,7 +48,7 @@ use frame_support::{parameter_types, traits::PalletInfoAccess};
 use sp_runtime::RuntimeDebug;
 use xcm::{
 	latest::prelude::*,
-	prelude::{InteriorMultiLocation, NetworkId},
+	prelude::{InteriorLocation, NetworkId},
 };
 use xcm_builder::BridgeBlobDispatcher;
 
@@ -58,12 +58,12 @@ parameter_types! {
 	pub const MaxUnconfirmedMessagesAtInboundLane: bp_messages::MessageNonce =
 		bp_bridge_hub_rococo::MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX;
 	pub const BridgeHubWestendChainId: bp_runtime::ChainId = bp_runtime::BRIDGE_HUB_WESTEND_CHAIN_ID;
-	pub BridgeRococoToWestendMessagesPalletInstance: InteriorMultiLocation = X1(PalletInstance(<BridgeWestendMessages as PalletInfoAccess>::index() as u8));
+	pub BridgeRococoToWestendMessagesPalletInstance: InteriorLocation = [PalletInstance(<BridgeWestendMessages as PalletInfoAccess>::index() as u8)].into();
 	pub WestendGlobalConsensusNetwork: NetworkId = NetworkId::Westend;
-	pub WestendGlobalConsensusNetworkLocation: MultiLocation = MultiLocation {
+	pub WestendGlobalConsensusNetworkLocation: Location = Location::new(
-		parents: 2,
+		2,
-		interior: X1(GlobalConsensus(WestendGlobalConsensusNetwork::get()))
+		[GlobalConsensus(WestendGlobalConsensusNetwork::get())]
-	};
+	);
 	// see the `FEE_BOOST_PER_MESSAGE` constant to get the meaning of this value
 	pub PriorityBoostPerMessage: u64 = 182_044_444_444_444;
 
@@ -74,26 +74,26 @@ parameter_types! {
 	pub ActiveOutboundLanesToBridgeHubWestend: &'static [bp_messages::LaneId] = &[XCM_LANE_FOR_ASSET_HUB_ROCOCO_TO_ASSET_HUB_WESTEND];
 	pub const AssetHubRococoToAssetHubWestendMessagesLane: bp_messages::LaneId = XCM_LANE_FOR_ASSET_HUB_ROCOCO_TO_ASSET_HUB_WESTEND;
 	pub FromAssetHubRococoToAssetHubWestendRoute: SenderAndLane = SenderAndLane::new(
-		ParentThen(X1(Parachain(AssetHubRococoParaId::get().into()))).into(),
+		ParentThen([Parachain(AssetHubRococoParaId::get().into())].into()).into(),
 		XCM_LANE_FOR_ASSET_HUB_ROCOCO_TO_ASSET_HUB_WESTEND,
 	);
-	pub ActiveLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))> = sp_std::vec![
+	pub ActiveLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorLocation))> = sp_std::vec![
 			(
 				FromAssetHubRococoToAssetHubWestendRoute::get(),
-				(WestendGlobalConsensusNetwork::get(), X1(Parachain(AssetHubWestendParaId::get().into())))
+				(WestendGlobalConsensusNetwork::get(), [Parachain(AssetHubWestendParaId::get().into())].into())
 			)
 	];
 
 	pub CongestedMessage: Xcm<()> = build_congestion_message(true).into();
 	pub UncongestedMessage: Xcm<()> = build_congestion_message(false).into();
 
-	pub BridgeHubWestendLocation: MultiLocation = MultiLocation {
+	pub BridgeHubWestendLocation: Location = Location::new(
-		parents: 2,
+		2,
-		interior: X2(
+		[
 			GlobalConsensus(WestendGlobalConsensusNetwork::get()),
 			Parachain(<bp_bridge_hub_westend::BridgeHubWestend as bp_runtime::Parachain>::PARACHAIN_ID)
-		)
+		]
-	};
+	);
 }
 pub const XCM_LANE_FOR_ASSET_HUB_ROCOCO_TO_ASSET_HUB_WESTEND: LaneId = LaneId([0, 0, 0, 2]);
 
@@ -327,11 +327,11 @@ mod tests {
 			PriorityBoostPerMessage,
 		>(FEE_BOOST_PER_MESSAGE);
 
-		assert_eq!(
+		let expected: InteriorLocation = [PalletInstance(
-			BridgeRococoToWestendMessagesPalletInstance::get(),
+			bp_bridge_hub_rococo::WITH_BRIDGE_ROCOCO_TO_WESTEND_MESSAGES_PALLET_INDEX,
-			X1(PalletInstance(
+		)]
-				bp_bridge_hub_rococo::WITH_BRIDGE_ROCOCO_TO_WESTEND_MESSAGES_PALLET_INDEX
+		.into();
-			))
+
-		);
+		assert_eq!(BridgeRococoToWestendMessagesPalletInstance::get(), expected,);
 	}
 }

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs

@@ -78,7 +78,7 @@ use bridge_hub_common::{
 use pallet_xcm::EnsureXcm;
 pub use sp_consensus_aura::sr25519::AuthorityId as AuraId;
 pub use sp_runtime::{MultiAddress, Perbill, Permill};
-use xcm::VersionedMultiLocation;
+use xcm::VersionedLocation;
 use xcm_config::{TreasuryAccount, XcmOriginToTransactDispatchOrigin, XcmRouter};
 
 #[cfg(any(feature = "std", test))]
@@ -385,7 +385,7 @@ impl cumulus_pallet_aura_ext::Config for Runtime {}
 
 parameter_types! {
 	/// The asset ID for the asset that we use to pay for message delivery fees.
-	pub FeeAssetId: AssetId = Concrete(xcm_config::TokenLocation::get());
+	pub FeeAssetId: AssetId = AssetId(xcm_config::TokenLocation::get());
 	/// The base fee for the message delivery fees.
 	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
 }
@@ -517,7 +517,7 @@ pub mod benchmark_helpers {
 	use snowbridge_beacon_primitives::CompactExecutionHeader;
 	use snowbridge_pallet_inbound_queue::BenchmarkHelper;
 	use sp_core::H256;
-	use xcm::latest::{MultiAssets, MultiLocation, SendError, SendResult, SendXcm, Xcm, XcmHash};
+	use xcm::latest::{Assets, Location, SendError, SendResult, SendXcm, Xcm, XcmHash};
 
 	impl<T: snowbridge_pallet_ethereum_client::Config> BenchmarkHelper<T> for Runtime {
 		fn initialize_storage(block_hash: H256, header: CompactExecutionHeader) {
@@ -530,10 +530,10 @@ pub mod benchmark_helpers {
 		type Ticket = Xcm<()>;
 
 		fn validate(
-			_dest: &mut Option<MultiLocation>,
+			_dest: &mut Option<Location>,
 			xcm: &mut Option<Xcm<()>>,
 		) -> SendResult<Self::Ticket> {
-			Ok((xcm.clone().unwrap(), MultiAssets::new()))
+			Ok((xcm.clone().unwrap(), Assets::new()))
 		}
 		fn deliver(xcm: Xcm<()>) -> Result<XcmHash, SendError> {
 			let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
@@ -542,7 +542,7 @@ pub mod benchmark_helpers {
 	}
 
 	impl snowbridge_pallet_system::BenchmarkHelper<RuntimeOrigin> for () {
-		fn make_xcm_origin(location: MultiLocation) -> RuntimeOrigin {
+		fn make_xcm_origin(location: Location) -> RuntimeOrigin {
 			RuntimeOrigin::from(pallet_xcm::Origin::Xcm(location))
 		}
 	}
@@ -1016,7 +1016,7 @@ impl_runtime_apis! {
 	}
 
 	impl snowbridge_system_runtime_api::ControlApi<Block> for Runtime {
-		fn agent_id(location: VersionedMultiLocation) -> Option<AgentId> {
+		fn agent_id(location: VersionedLocation) -> Option<AgentId> {
 			snowbridge_pallet_system::api::agent_id::<Runtime>(location)
 		}
 	}
@@ -1095,28 +1095,28 @@ impl_runtime_apis! {
 
 			use pallet_xcm::benchmarking::Pallet as PalletXcmExtrinsicsBenchmark;
 			impl pallet_xcm::benchmarking::Config for Runtime {
-				fn reachable_dest() -> Option<MultiLocation> {
+				fn reachable_dest() -> Option<Location> {
 					Some(Parent.into())
 				}
 
-				fn teleportable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn teleportable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Relay/native token can be teleported between BH and Relay.
 					Some((
-						MultiAsset {
+						Asset {
 							fun: Fungible(EXISTENTIAL_DEPOSIT),
-							id: Concrete(Parent.into())
+							id: AssetId(Parent.into())
 						},
 						Parent.into(),
 					))
 				}
 
-				fn reserve_transferable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn reserve_transferable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Reserve transfers are disabled on BH.
 					None
 				}
 
 				fn set_up_complex_asset_transfer(
-				) -> Option<(MultiAssets, u32, MultiLocation, Box<dyn FnOnce()>)> {
+				) -> Option<(Assets, u32, Location, Box<dyn FnOnce()>)> {
 					// BH only supports teleports to system parachain.
 					// Relay/native token can be teleported between BH and Relay.
 					let native_location = Parent.into();
@@ -1132,7 +1132,7 @@ impl_runtime_apis! {
 			use xcm_config::TokenLocation;
 
 			parameter_types! {
-				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+				pub ExistentialDepositAsset: Option<Asset> = Some((
 					TokenLocation::get(),
 					ExistentialDeposit::get()
 				).into());
@@ -1143,17 +1143,17 @@ impl_runtime_apis! {
 				type AccountIdConverter = xcm_config::LocationToAccountId;
 				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
 					xcm_config::XcmConfig,
-					ExistentialDepositMultiAsset,
+					ExistentialDepositAsset,
 					xcm_config::PriceForParentDelivery,
 				>;
-				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
+				fn valid_destination() -> Result<Location, BenchmarkError> {
 					Ok(TokenLocation::get())
 				}
-				fn worst_case_holding(_depositable_count: u32) -> MultiAssets {
+				fn worst_case_holding(_depositable_count: u32) -> Assets {
 					// just concrete assets according to relay chain.
-					let assets: Vec<MultiAsset> = vec![
+					let assets: Vec<Asset> = vec![
-						MultiAsset {
+						Asset {
-							id: Concrete(TokenLocation::get()),
+							id: AssetId(TokenLocation::get()),
 							fun: Fungible(1_000_000 * UNITS),
 						}
 					];
@@ -1162,12 +1162,12 @@ impl_runtime_apis! {
 			}
 
 			parameter_types! {
-				pub const TrustedTeleporter: Option<(MultiLocation, MultiAsset)> = Some((
+				pub const TrustedTeleporter: Option<(Location, Asset)> = Some((
 					TokenLocation::get(),
-					MultiAsset { fun: Fungible(UNITS), id: Concrete(TokenLocation::get()) },
+					Asset { fun: Fungible(UNITS), id: AssetId(TokenLocation::get()) },
 				));
 				pub const CheckedAccount: Option<(AccountId, xcm_builder::MintLocation)> = None;
-				pub const TrustedReserve: Option<(MultiLocation, MultiAsset)> = None;
+				pub const TrustedReserve: Option<(Location, Asset)> = None;
 			}
 
 			impl pallet_xcm_benchmarks::fungible::Config for Runtime {
@@ -1177,9 +1177,9 @@ impl_runtime_apis! {
 				type TrustedTeleporter = TrustedTeleporter;
 				type TrustedReserve = TrustedReserve;
 
-				fn get_multi_asset() -> MultiAsset {
+				fn get_asset() -> Asset {
-					MultiAsset {
+					Asset {
-						id: Concrete(TokenLocation::get()),
+						id: AssetId(TokenLocation::get()),
 						fun: Fungible(UNITS),
 					}
 				}
@@ -1193,35 +1193,35 @@ impl_runtime_apis! {
 					(0u64, Response::Version(Default::default()))
 				}
 
-				fn worst_case_asset_exchange() -> Result<(MultiAssets, MultiAssets), BenchmarkError> {
+				fn worst_case_asset_exchange() -> Result<(Assets, Assets), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn universal_alias() -> Result<(MultiLocation, Junction), BenchmarkError> {
+				fn universal_alias() -> Result<(Location, Junction), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn transact_origin_and_runtime_call() -> Result<(MultiLocation, RuntimeCall), BenchmarkError> {
+				fn transact_origin_and_runtime_call() -> Result<(Location, RuntimeCall), BenchmarkError> {
 					Ok((TokenLocation::get(), frame_system::Call::remark_with_event { remark: vec![] }.into()))
 				}
 
-				fn subscribe_origin() -> Result<MultiLocation, BenchmarkError> {
+				fn subscribe_origin() -> Result<Location, BenchmarkError> {
 					Ok(TokenLocation::get())
 				}
 
-				fn claimable_asset() -> Result<(MultiLocation, MultiLocation, MultiAssets), BenchmarkError> {
+				fn claimable_asset() -> Result<(Location, Location, Assets), BenchmarkError> {
 					let origin = TokenLocation::get();
-					let assets: MultiAssets = (Concrete(TokenLocation::get()), 1_000 * UNITS).into();
+					let assets: Assets = (AssetId(TokenLocation::get()), 1_000 * UNITS).into();
-					let ticket = MultiLocation { parents: 0, interior: Here };
+					let ticket = Location { parents: 0, interior: Here };
 					Ok((origin, ticket, assets))
 				}
 
-				fn unlockable_asset() -> Result<(MultiLocation, MultiLocation, MultiAsset), BenchmarkError> {
+				fn unlockable_asset() -> Result<(Location, Location, Asset), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
 				fn export_message_origin_and_destination(
-				) -> Result<(MultiLocation, NetworkId, InteriorMultiLocation), BenchmarkError> {
+				) -> Result<(Location, NetworkId, InteriorLocation), BenchmarkError> {
 					// save XCM version for remote bridge hub
 					let _ = PolkadotXcm::force_xcm_version(
 						RuntimeOrigin::root(),
@@ -1241,12 +1241,12 @@ impl_runtime_apis! {
 						(
 							bridge_to_westend_config::FromAssetHubRococoToAssetHubWestendRoute::get().location,
 							NetworkId::Westend,
-							X1(Parachain(bridge_to_westend_config::AssetHubWestendParaId::get().into()))
+							[Parachain(bridge_to_westend_config::AssetHubWestendParaId::get().into())].into()
 						)
 					)
 				}
 
-				fn alias_origin() -> Result<(MultiLocation, MultiLocation), BenchmarkError> {
+				fn alias_origin() -> Result<(Location, Location), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 			}
@@ -1296,7 +1296,7 @@ impl_runtime_apis! {
 						Runtime,
 						bridge_common_config::BridgeGrandpaWestendInstance,
 						bridge_to_westend_config::WithBridgeHubWestendMessageBridge,
-					>(params, generate_xcm_builder_bridge_message_sample(X2(GlobalConsensus(Rococo), Parachain(42))))
+					>(params, generate_xcm_builder_bridge_message_sample([GlobalConsensus(Rococo), Parachain(42)].into()))
 				}
 
 				fn prepare_message_delivery_proof(
@@ -1331,7 +1331,7 @@ impl_runtime_apis! {
 						Runtime,
 						bridge_common_config::BridgeGrandpaRococoBulletinInstance,
 						bridge_to_bulletin_config::WithRococoBulletinMessageBridge,
-					>(params, generate_xcm_builder_bridge_message_sample(X2(GlobalConsensus(Rococo), Parachain(42))))
+					>(params, generate_xcm_builder_bridge_message_sample([GlobalConsensus(Rococo), Parachain(42)].into()))
 				}
 
 				fn prepare_message_delivery_proof(

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/weights/xcm/mod.rs

@@ -24,14 +24,14 @@ use pallet_xcm_benchmarks_generic::WeightInfo as XcmGeneric;
 use sp_std::prelude::*;
 use xcm::{latest::prelude::*, DoubleEncoded};
 
-trait WeighMultiAssets {
+trait WeighAssets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight;
+	fn weigh_assets(&self, weight: Weight) -> Weight;
 }
 
 const MAX_ASSETS: u64 = 100;
 
-impl WeighMultiAssets for MultiAssetFilter {
+impl WeighAssets for AssetFilter {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		match self {
 			Self::Definite(assets) => weight.saturating_mul(assets.inner().iter().count() as u64),
 			Self::Wild(asset) => match asset {
@@ -50,40 +50,36 @@ impl WeighMultiAssets for MultiAssetFilter {
 	}
 }
 
-impl WeighMultiAssets for MultiAssets {
+impl WeighAssets for Assets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		weight.saturating_mul(self.inner().iter().count() as u64)
 	}
 }
 
 pub struct BridgeHubRococoXcmWeight<Call>(core::marker::PhantomData<Call>);
 impl<Call> XcmWeightInfo<Call> for BridgeHubRococoXcmWeight<Call> {
-	fn withdraw_asset(assets: &MultiAssets) -> Weight {
+	fn withdraw_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
 	}
-	fn reserve_asset_deposited(assets: &MultiAssets) -> Weight {
+	fn reserve_asset_deposited(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
 	}
-	fn receive_teleported_asset(assets: &MultiAssets) -> Weight {
+	fn receive_teleported_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
 	}
 	fn query_response(
 		_query_id: &u64,
 		_response: &Response,
 		_max_weight: &Weight,
-		_querier: &Option<MultiLocation>,
+		_querier: &Option<Location>,
 	) -> Weight {
 		XcmGeneric::<Runtime>::query_response()
 	}
-	fn transfer_asset(assets: &MultiAssets, _dest: &MultiLocation) -> Weight {
+	fn transfer_asset(assets: &Assets, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
 	}
-	fn transfer_reserve_asset(
+	fn transfer_reserve_asset(assets: &Assets, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssets,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
 	}
 	fn transact(
 		_origin_type: &OriginKind,
@@ -111,44 +107,36 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubRococoXcmWeight<Call> {
 	fn clear_origin() -> Weight {
 		XcmGeneric::<Runtime>::clear_origin()
 	}
-	fn descend_origin(_who: &InteriorMultiLocation) -> Weight {
+	fn descend_origin(_who: &InteriorLocation) -> Weight {
 		XcmGeneric::<Runtime>::descend_origin()
 	}
 	fn report_error(_query_response_info: &QueryResponseInfo) -> Weight {
 		XcmGeneric::<Runtime>::report_error()
 	}
 
-	fn deposit_asset(assets: &MultiAssetFilter, _dest: &MultiLocation) -> Weight {
+	fn deposit_asset(assets: &AssetFilter, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
 	}
-	fn deposit_reserve_asset(
+	fn deposit_reserve_asset(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
 	}
-	fn exchange_asset(_give: &MultiAssetFilter, _receive: &MultiAssets, _maximal: &bool) -> Weight {
+	fn exchange_asset(_give: &AssetFilter, _receive: &Assets, _maximal: &bool) -> Weight {
 		Weight::MAX
 	}
 	fn initiate_reserve_withdraw(
-		assets: &MultiAssetFilter,
+		assets: &AssetFilter,
-		_reserve: &MultiLocation,
+		_reserve: &Location,
 		_xcm: &Xcm<()>,
 	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
 	}
-	fn initiate_teleport(
+	fn initiate_teleport(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
 	}
-	fn report_holding(_response_info: &QueryResponseInfo, _assets: &MultiAssetFilter) -> Weight {
+	fn report_holding(_response_info: &QueryResponseInfo, _assets: &AssetFilter) -> Weight {
 		XcmGeneric::<Runtime>::report_holding()
 	}
-	fn buy_execution(_fees: &MultiAsset, _weight_limit: &WeightLimit) -> Weight {
+	fn buy_execution(_fees: &Asset, _weight_limit: &WeightLimit) -> Weight {
 		XcmGeneric::<Runtime>::buy_execution()
 	}
 	fn refund_surplus() -> Weight {
@@ -163,7 +151,7 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubRococoXcmWeight<Call> {
 	fn clear_error() -> Weight {
 		XcmGeneric::<Runtime>::clear_error()
 	}
-	fn claim_asset(_assets: &MultiAssets, _ticket: &MultiLocation) -> Weight {
+	fn claim_asset(_assets: &Assets, _ticket: &Location) -> Weight {
 		XcmGeneric::<Runtime>::claim_asset()
 	}
 	fn trap(_code: &u64) -> Weight {
@@ -175,13 +163,13 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubRococoXcmWeight<Call> {
 	fn unsubscribe_version() -> Weight {
 		XcmGeneric::<Runtime>::unsubscribe_version()
 	}
-	fn burn_asset(assets: &MultiAssets) -> Weight {
+	fn burn_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::burn_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::burn_asset())
 	}
-	fn expect_asset(assets: &MultiAssets) -> Weight {
+	fn expect_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::expect_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::expect_asset())
 	}
-	fn expect_origin(_origin: &Option<MultiLocation>) -> Weight {
+	fn expect_origin(_origin: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::expect_origin()
 	}
 	fn expect_error(_error: &Option<(u32, XcmError)>) -> Weight {
@@ -215,16 +203,16 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubRococoXcmWeight<Call> {
 		let inner_encoded_len = inner.encode().len() as u32;
 		XcmGeneric::<Runtime>::export_message(inner_encoded_len)
 	}
-	fn lock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn lock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn unlock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn unlock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn note_unlockable(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn note_unlockable(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn request_unlock(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn request_unlock(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
 	fn set_fees_mode(_: &bool) -> Weight {
@@ -236,11 +224,11 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubRococoXcmWeight<Call> {
 	fn clear_topic() -> Weight {
 		XcmGeneric::<Runtime>::clear_topic()
 	}
-	fn alias_origin(_: &MultiLocation) -> Weight {
+	fn alias_origin(_: &Location) -> Weight {
 		// XCM Executor does not currently support alias origin operations
 		Weight::MAX
 	}
-	fn unpaid_execution(_: &WeightLimit, _: &Option<MultiLocation>) -> Weight {
+	fn unpaid_execution(_: &WeightLimit, _: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::unpaid_execution()
 	}
 }

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/xcm_config.rs

@@ -32,7 +32,7 @@ use bp_messages::LaneId;
 use bp_relayers::{PayRewardFromAccount, RewardsAccountOwner, RewardsAccountParams};
 use bp_runtime::ChainId;
 use frame_support::{
-	match_types, parameter_types,
+	parameter_types,
 	traits::{ConstU32, Contains, Equals, Everything, Nothing},
 };
 use frame_system::EnsureRoot;
@@ -69,19 +69,19 @@ use xcm_executor::{
 };
 
 parameter_types! {
-	pub const TokenLocation: MultiLocation = MultiLocation::parent();
+	pub const TokenLocation: Location = Location::parent();
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
 	pub RelayNetwork: NetworkId = NetworkId::Rococo;
-	pub UniversalLocation: InteriorMultiLocation =
+	pub UniversalLocation: InteriorLocation =
-		X2(GlobalConsensus(RelayNetwork::get()), Parachain(ParachainInfo::parachain_id().into()));
+		[GlobalConsensus(RelayNetwork::get()), Parachain(ParachainInfo::parachain_id().into())].into();
 	pub const MaxInstructions: u32 = 100;
 	pub const MaxAssetsIntoHolding: u32 = 64;
 	pub TreasuryAccount: AccountId = TREASURY_PALLET_ID.into_account_truncating();
-	pub RelayTreasuryLocation: MultiLocation = (Parent, PalletInstance(rococo_runtime_constants::TREASURY_PALLET_ID)).into();
+	pub RelayTreasuryLocation: Location = (Parent, PalletInstance(rococo_runtime_constants::TREASURY_PALLET_ID)).into();
-	pub SiblingPeople: MultiLocation = (Parent, Parachain(rococo_runtime_constants::system_parachain::PEOPLE_ID)).into();
+	pub SiblingPeople: Location = (Parent, Parachain(rococo_runtime_constants::system_parachain::PEOPLE_ID)).into();
 }
 
-/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
+/// Type for specifying how a `Location` can be converted into an `AccountId`. This is used
 /// when determining ownership of accounts for asset transacting and when attempting to use XCM
 /// `Transact` in order to determine the dispatch Origin.
 pub type LocationToAccountId = (
@@ -100,7 +100,7 @@ pub type CurrencyTransactor = CurrencyAdapter<
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	IsConcrete<TokenLocation>,
-	// Do a simple punn to convert an AccountId32 MultiLocation into a native chain account ID:
+	// Do a simple punn to convert an AccountId32 Location into a native chain account ID:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -132,11 +132,11 @@ pub type XcmOriginToTransactDispatchOrigin = (
 	XcmPassthrough<RuntimeOrigin>,
 );
 
-match_types! {
+pub struct ParentOrParentsPlurality;
-	pub type ParentOrParentsPlurality: impl Contains<MultiLocation> = {
+impl Contains<Location> for ParentOrParentsPlurality {
-		MultiLocation { parents: 1, interior: Here } |
+	fn contains(location: &Location) -> bool {
-		MultiLocation { parents: 1, interior: X1(Plurality { .. }) }
+		matches!(location.unpack(), (1, []) | (1, [Plurality { .. }]))
-	};
+	}
 }
 
 /// A call filter for the XCM Transact instruction. This is a temporary measure until we properly
@@ -331,7 +331,7 @@ impl xcm_executor::Config for XcmConfig {
 pub type PriceForParentDelivery =
 	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
 
-/// Converts a local signed origin into an XCM multilocation.
+/// Converts a local signed origin into an XCM location.
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
@@ -407,14 +407,10 @@ impl<
 		BridgeLaneId,
 	>
 {
-	fn handle_fee(
+	fn handle_fee(fee: Assets, maybe_context: Option<&XcmContext>, reason: FeeReason) -> Assets {
-		fee: MultiAssets,
-		maybe_context: Option<&XcmContext>,
-		reason: FeeReason,
-	) -> MultiAssets {
 		if matches!(reason, FeeReason::Export { network: bridged_network, destination }
 				if bridged_network == DestNetwork::get() &&
-					destination == X1(Parachain(DestParaId::get().into())))
+					destination == [Parachain(DestParaId::get().into())])
 		{
 			// We have 2 relayer rewards accounts:
 			// - the SA of the source parachain on this BH: this pays the relayers for delivering
@@ -445,14 +441,14 @@ impl<
 					Fungible(total_fee) => {
 						let source_fee = total_fee / 2;
 						deposit_or_burn_fee::<AssetTransactor, _>(
-							MultiAsset { id: asset.id, fun: Fungible(source_fee) }.into(),
+							Asset { id: asset.id.clone(), fun: Fungible(source_fee) }.into(),
 							maybe_context,
 							source_para_account.clone(),
 						);
 
 						let dest_fee = total_fee - source_fee;
 						deposit_or_burn_fee::<AssetTransactor, _>(
-							MultiAsset { id: asset.id, fun: Fungible(dest_fee) }.into(),
+							Asset { id: asset.id, fun: Fungible(dest_fee) }.into(),
 							maybe_context,
 							dest_para_account.clone(),
 						);
@@ -467,7 +463,7 @@ impl<
 				}
 			}
 
-			return MultiAssets::new()
+			return Assets::new()
 		}
 
 		fee
@@ -477,10 +473,10 @@ impl<
 pub struct XcmFeeManagerFromComponentsBridgeHub<WaivedLocations, HandleFee>(
 	PhantomData<(WaivedLocations, HandleFee)>,
 );
-impl<WaivedLocations: Contains<MultiLocation>, FeeHandler: HandleFee> FeeManager
+impl<WaivedLocations: Contains<Location>, FeeHandler: HandleFee> FeeManager
 	for XcmFeeManagerFromComponentsBridgeHub<WaivedLocations, FeeHandler>
 {
-	fn is_waived(origin: Option<&MultiLocation>, fee_reason: FeeReason) -> bool {
+	fn is_waived(origin: Option<&Location>, fee_reason: FeeReason) -> bool {
 		let Some(loc) = origin else { return false };
 		if let Export { network, destination: Here } = fee_reason {
 			return !(network == EthereumNetwork::get())
@@ -488,7 +484,7 @@ impl<WaivedLocations: Contains<MultiLocation>, FeeHandler: HandleFee> FeeManager
 		WaivedLocations::contains(loc)
 	}
 
-	fn handle_fee(fee: MultiAssets, context: Option<&XcmContext>, reason: FeeReason) {
+	fn handle_fee(fee: Assets, context: Option<&XcmContext>, reason: FeeReason) {
 		FeeHandler::handle_fee(fee, context, reason);
 	}
 }

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/tests/tests.rs

@@ -241,7 +241,7 @@ mod bridge_hub_westend_tests {
 					_ => None,
 				}
 			}),
-			|| ExportMessage { network: Westend, destination: X1(Parachain(bridge_to_westend_config::AssetHubWestendParaId::get().into())), xcm: Xcm(vec![]) },
+			|| ExportMessage { network: Westend, destination: [Parachain(bridge_to_westend_config::AssetHubWestendParaId::get().into())].into(), xcm: Xcm(vec![]) },
 			XCM_LANE_FOR_ASSET_HUB_ROCOCO_TO_ASSET_HUB_WESTEND,
 			Some((TokenLocation::get(), ExistentialDeposit::get()).into()),
 			// value should be >= than value generated by `can_calculate_weight_for_paid_export_message_with_reserve_transfer`

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/bridge_to_rococo_config.rs

@@ -47,7 +47,7 @@ use frame_support::{
 use sp_runtime::RuntimeDebug;
 use xcm::{
 	latest::prelude::*,
-	prelude::{InteriorMultiLocation, NetworkId},
+	prelude::{InteriorLocation, NetworkId},
 };
 use xcm_builder::BridgeBlobDispatcher;
 
@@ -63,12 +63,12 @@ parameter_types! {
 	pub const MaxUnconfirmedMessagesAtInboundLane: bp_messages::MessageNonce =
 		bp_bridge_hub_westend::MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX;
 	pub const BridgeHubRococoChainId: bp_runtime::ChainId = bp_runtime::BRIDGE_HUB_ROCOCO_CHAIN_ID;
-	pub BridgeWestendToRococoMessagesPalletInstance: InteriorMultiLocation = X1(PalletInstance(<BridgeRococoMessages as PalletInfoAccess>::index() as u8));
+	pub BridgeWestendToRococoMessagesPalletInstance: InteriorLocation = [PalletInstance(<BridgeRococoMessages as PalletInfoAccess>::index() as u8)].into();
 	pub RococoGlobalConsensusNetwork: NetworkId = NetworkId::Rococo;
-	pub RococoGlobalConsensusNetworkLocation: MultiLocation = MultiLocation {
+	pub RococoGlobalConsensusNetworkLocation: Location = Location::new(
-		parents: 2,
+		2,
-		interior: X1(GlobalConsensus(RococoGlobalConsensusNetwork::get()))
+		[GlobalConsensus(RococoGlobalConsensusNetwork::get())]
-	};
+	);
 	// see the `FEE_BOOST_PER_MESSAGE` constant to get the meaning of this value
 	pub PriorityBoostPerMessage: u64 = 182_044_444_444_444;
 
@@ -79,26 +79,26 @@ parameter_types! {
 	pub ActiveOutboundLanesToBridgeHubRococo: &'static [bp_messages::LaneId] = &[XCM_LANE_FOR_ASSET_HUB_WESTEND_TO_ASSET_HUB_ROCOCO];
 	pub const AssetHubWestendToAssetHubRococoMessagesLane: bp_messages::LaneId = XCM_LANE_FOR_ASSET_HUB_WESTEND_TO_ASSET_HUB_ROCOCO;
 	pub FromAssetHubWestendToAssetHubRococoRoute: SenderAndLane = SenderAndLane::new(
-		ParentThen(X1(Parachain(AssetHubWestendParaId::get().into()))).into(),
+		ParentThen([Parachain(AssetHubWestendParaId::get().into())].into()).into(),
 		XCM_LANE_FOR_ASSET_HUB_WESTEND_TO_ASSET_HUB_ROCOCO,
 	);
-	pub ActiveLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))> = sp_std::vec![
+	pub ActiveLanes: sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorLocation))> = sp_std::vec![
 			(
 				FromAssetHubWestendToAssetHubRococoRoute::get(),
-				(RococoGlobalConsensusNetwork::get(), X1(Parachain(AssetHubRococoParaId::get().into())))
+				(RococoGlobalConsensusNetwork::get(), [Parachain(AssetHubRococoParaId::get().into())].into())
 			)
 	];
 
 	pub CongestedMessage: Xcm<()> = build_congestion_message(true).into();
 	pub UncongestedMessage: Xcm<()> = build_congestion_message(false).into();
 
-	pub BridgeHubRococoLocation: MultiLocation = MultiLocation {
+	pub BridgeHubRococoLocation: Location = Location::new(
-		parents: 2,
+		2,
-		interior: X2(
+		[
 			GlobalConsensus(RococoGlobalConsensusNetwork::get()),
 			Parachain(<bp_bridge_hub_rococo::BridgeHubRococo as bp_runtime::Parachain>::PARACHAIN_ID)
-		)
+		]
-	};
+	);
 }
 pub const XCM_LANE_FOR_ASSET_HUB_WESTEND_TO_ASSET_HUB_ROCOCO: LaneId = LaneId([0, 0, 0, 2]);
 
@@ -363,9 +363,9 @@ mod tests {
 
 		assert_eq!(
 			BridgeWestendToRococoMessagesPalletInstance::get(),
-			X1(PalletInstance(
+			[PalletInstance(
 				bp_bridge_hub_westend::WITH_BRIDGE_WESTEND_TO_ROCOCO_MESSAGES_PALLET_INDEX
-			))
+			)]
 		);
 	}
 }

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/lib.rs

@@ -352,7 +352,7 @@ impl cumulus_pallet_aura_ext::Config for Runtime {}
 
 parameter_types! {
 	/// The asset ID for the asset that we use to pay for message delivery fees.
-	pub FeeAssetId: AssetId = Concrete(xcm_config::WestendLocation::get());
+	pub FeeAssetId: AssetId = AssetId(xcm_config::WestendLocation::get());
 	/// The base fee for the message delivery fees.
 	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
 }
@@ -797,28 +797,28 @@ impl_runtime_apis! {
 
 			use pallet_xcm::benchmarking::Pallet as PalletXcmExtrinsicsBenchmark;
 			impl pallet_xcm::benchmarking::Config for Runtime {
-				fn reachable_dest() -> Option<MultiLocation> {
+				fn reachable_dest() -> Option<Location> {
 					Some(Parent.into())
 				}
 
-				fn teleportable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn teleportable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Relay/native token can be teleported between BH and Relay.
 					Some((
-						MultiAsset {
+						Asset {
 							fun: Fungible(EXISTENTIAL_DEPOSIT),
-							id: Concrete(Parent.into())
+							id: AssetId(Parent.into())
 						},
 						Parent.into(),
 					))
 				}
 
-				fn reserve_transferable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn reserve_transferable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Reserve transfers are disabled on BH.
 					None
 				}
 
 				fn set_up_complex_asset_transfer(
-				) -> Option<(MultiAssets, u32, MultiLocation, Box<dyn FnOnce()>)> {
+				) -> Option<(Assets, u32, Location, Box<dyn FnOnce()>)> {
 					// BH only supports teleports to system parachain.
 					// Relay/native token can be teleported between BH and Relay.
 					let native_location = Parent.into();
@@ -834,7 +834,7 @@ impl_runtime_apis! {
 			use xcm_config::WestendLocation;
 
 			parameter_types! {
-				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+				pub ExistentialDepositAsset: Option<Asset> = Some((
 					WestendLocation::get(),
 					ExistentialDeposit::get()
 				).into());
@@ -845,17 +845,17 @@ impl_runtime_apis! {
 				type AccountIdConverter = xcm_config::LocationToAccountId;
 				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
 					xcm_config::XcmConfig,
-					ExistentialDepositMultiAsset,
+					ExistentialDepositAsset,
 					xcm_config::PriceForParentDelivery,
 				>;
-				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
+				fn valid_destination() -> Result<Location, BenchmarkError> {
 					Ok(WestendLocation::get())
 				}
-				fn worst_case_holding(_depositable_count: u32) -> MultiAssets {
+				fn worst_case_holding(_depositable_count: u32) -> Assets {
-					// just concrete assets according to relay chain.
+					// just assets according to relay chain.
-					let assets: Vec<MultiAsset> = vec![
+					let assets: Vec<Asset> = vec![
-						MultiAsset {
+						Asset {
-							id: Concrete(WestendLocation::get()),
+							id: AssetId(WestendLocation::get()),
 							fun: Fungible(1_000_000 * UNITS),
 						}
 					];
@@ -864,12 +864,12 @@ impl_runtime_apis! {
 			}
 
 			parameter_types! {
-				pub const TrustedTeleporter: Option<(MultiLocation, MultiAsset)> = Some((
+				pub const TrustedTeleporter: Option<(Location, Asset)> = Some((
 					WestendLocation::get(),
-					MultiAsset { fun: Fungible(UNITS), id: Concrete(WestendLocation::get()) },
+					Asset { fun: Fungible(UNITS), id: AssetId(WestendLocation::get()) },
 				));
 				pub const CheckedAccount: Option<(AccountId, xcm_builder::MintLocation)> = None;
-				pub const TrustedReserve: Option<(MultiLocation, MultiAsset)> = None;
+				pub const TrustedReserve: Option<(Location, Asset)> = None;
 			}
 
 			impl pallet_xcm_benchmarks::fungible::Config for Runtime {
@@ -879,9 +879,9 @@ impl_runtime_apis! {
 				type TrustedTeleporter = TrustedTeleporter;
 				type TrustedReserve = TrustedReserve;
 
-				fn get_multi_asset() -> MultiAsset {
+				fn get_asset() -> Asset {
-					MultiAsset {
+					Asset {
-						id: Concrete(WestendLocation::get()),
+						id: AssetId(WestendLocation::get()),
 						fun: Fungible(UNITS),
 					}
 				}
@@ -895,35 +895,35 @@ impl_runtime_apis! {
 					(0u64, Response::Version(Default::default()))
 				}
 
-				fn worst_case_asset_exchange() -> Result<(MultiAssets, MultiAssets), BenchmarkError> {
+				fn worst_case_asset_exchange() -> Result<(Assets, Assets), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn universal_alias() -> Result<(MultiLocation, Junction), BenchmarkError> {
+				fn universal_alias() -> Result<(Location, Junction), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
-				fn transact_origin_and_runtime_call() -> Result<(MultiLocation, RuntimeCall), BenchmarkError> {
+				fn transact_origin_and_runtime_call() -> Result<(Location, RuntimeCall), BenchmarkError> {
 					Ok((WestendLocation::get(), frame_system::Call::remark_with_event { remark: vec![] }.into()))
 				}
 
-				fn subscribe_origin() -> Result<MultiLocation, BenchmarkError> {
+				fn subscribe_origin() -> Result<Location, BenchmarkError> {
 					Ok(WestendLocation::get())
 				}
 
-				fn claimable_asset() -> Result<(MultiLocation, MultiLocation, MultiAssets), BenchmarkError> {
+				fn claimable_asset() -> Result<(Location, Location, Assets), BenchmarkError> {
 					let origin = WestendLocation::get();
-					let assets: MultiAssets = (Concrete(WestendLocation::get()), 1_000 * UNITS).into();
+					let assets: Assets = (AssetId(WestendLocation::get()), 1_000 * UNITS).into();
-					let ticket = MultiLocation { parents: 0, interior: Here };
+					let ticket = Location { parents: 0, interior: Here };
 					Ok((origin, ticket, assets))
 				}
 
-				fn unlockable_asset() -> Result<(MultiLocation, MultiLocation, MultiAsset), BenchmarkError> {
+				fn unlockable_asset() -> Result<(Location, Location, Asset), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 
 				fn export_message_origin_and_destination(
-				) -> Result<(MultiLocation, NetworkId, InteriorMultiLocation), BenchmarkError> {
+				) -> Result<(Location, NetworkId, InteriorLocation), BenchmarkError> {
 					// save XCM version for remote bridge hub
 					let _ = PolkadotXcm::force_xcm_version(
 						RuntimeOrigin::root(),
@@ -943,12 +943,12 @@ impl_runtime_apis! {
 						(
 							bridge_to_rococo_config::FromAssetHubWestendToAssetHubRococoRoute::get().location,
 							NetworkId::Rococo,
-							X1(Parachain(bridge_to_rococo_config::AssetHubRococoParaId::get().into()))
+							[Parachain(bridge_to_rococo_config::AssetHubRococoParaId::get().into())].into()
 						)
 					)
 				}
 
-				fn alias_origin() -> Result<(MultiLocation, MultiLocation), BenchmarkError> {
+				fn alias_origin() -> Result<(Location, Location), BenchmarkError> {
 					Err(BenchmarkError::Skip)
 				}
 			}
@@ -995,7 +995,7 @@ impl_runtime_apis! {
 						Runtime,
 						bridge_to_rococo_config::BridgeGrandpaRococoInstance,
 						bridge_to_rococo_config::WithBridgeHubRococoMessageBridge,
-					>(params, generate_xcm_builder_bridge_message_sample(X2(GlobalConsensus(Westend), Parachain(42))))
+					>(params, generate_xcm_builder_bridge_message_sample([GlobalConsensus(Westend), Parachain(42)].into()))
 				}
 
 				fn prepare_message_delivery_proof(

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/weights/xcm/mod.rs

@@ -25,14 +25,14 @@ use pallet_xcm_benchmarks_generic::WeightInfo as XcmGeneric;
 use sp_std::prelude::*;
 use xcm::{latest::prelude::*, DoubleEncoded};
 
-trait WeighMultiAssets {
+trait WeighAssets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight;
+	fn weigh_assets(&self, weight: Weight) -> Weight;
 }
 
 const MAX_ASSETS: u64 = 100;
 
-impl WeighMultiAssets for MultiAssetFilter {
+impl WeighAssets for AssetFilter {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		match self {
 			Self::Definite(assets) => weight.saturating_mul(assets.inner().iter().count() as u64),
 			Self::Wild(asset) => match asset {
@@ -51,40 +51,36 @@ impl WeighMultiAssets for MultiAssetFilter {
 	}
 }
 
-impl WeighMultiAssets for MultiAssets {
+impl WeighAssets for Assets {
-	fn weigh_multi_assets(&self, weight: Weight) -> Weight {
+	fn weigh_assets(&self, weight: Weight) -> Weight {
 		weight.saturating_mul(self.inner().iter().count() as u64)
 	}
 }
 
 pub struct BridgeHubWestendXcmWeight<Call>(core::marker::PhantomData<Call>);
 impl<Call> XcmWeightInfo<Call> for BridgeHubWestendXcmWeight<Call> {
-	fn withdraw_asset(assets: &MultiAssets) -> Weight {
+	fn withdraw_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::withdraw_asset())
 	}
-	fn reserve_asset_deposited(assets: &MultiAssets) -> Weight {
+	fn reserve_asset_deposited(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::reserve_asset_deposited())
 	}
-	fn receive_teleported_asset(assets: &MultiAssets) -> Weight {
+	fn receive_teleported_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::receive_teleported_asset())
 	}
 	fn query_response(
 		_query_id: &u64,
 		_response: &Response,
 		_max_weight: &Weight,
-		_querier: &Option<MultiLocation>,
+		_querier: &Option<Location>,
 	) -> Weight {
 		XcmGeneric::<Runtime>::query_response()
 	}
-	fn transfer_asset(assets: &MultiAssets, _dest: &MultiLocation) -> Weight {
+	fn transfer_asset(assets: &Assets, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_asset())
 	}
-	fn transfer_reserve_asset(
+	fn transfer_reserve_asset(assets: &Assets, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssets,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::transfer_reserve_asset())
 	}
 	fn transact(
 		_origin_type: &OriginKind,
@@ -112,44 +108,36 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubWestendXcmWeight<Call> {
 	fn clear_origin() -> Weight {
 		XcmGeneric::<Runtime>::clear_origin()
 	}
-	fn descend_origin(_who: &InteriorMultiLocation) -> Weight {
+	fn descend_origin(_who: &InteriorLocation) -> Weight {
 		XcmGeneric::<Runtime>::descend_origin()
 	}
 	fn report_error(_query_response_info: &QueryResponseInfo) -> Weight {
 		XcmGeneric::<Runtime>::report_error()
 	}
 
-	fn deposit_asset(assets: &MultiAssetFilter, _dest: &MultiLocation) -> Weight {
+	fn deposit_asset(assets: &AssetFilter, _dest: &Location) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_asset())
 	}
-	fn deposit_reserve_asset(
+	fn deposit_reserve_asset(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::deposit_reserve_asset())
 	}
-	fn exchange_asset(_give: &MultiAssetFilter, _receive: &MultiAssets, _maximal: &bool) -> Weight {
+	fn exchange_asset(_give: &AssetFilter, _receive: &Assets, _maximal: &bool) -> Weight {
 		Weight::MAX
 	}
 	fn initiate_reserve_withdraw(
-		assets: &MultiAssetFilter,
+		assets: &AssetFilter,
-		_reserve: &MultiLocation,
+		_reserve: &Location,
 		_xcm: &Xcm<()>,
 	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_reserve_withdraw())
 	}
-	fn initiate_teleport(
+	fn initiate_teleport(assets: &AssetFilter, _dest: &Location, _xcm: &Xcm<()>) -> Weight {
-		assets: &MultiAssetFilter,
+		assets.weigh_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
-		_dest: &MultiLocation,
-		_xcm: &Xcm<()>,
-	) -> Weight {
-		assets.weigh_multi_assets(XcmFungibleWeight::<Runtime>::initiate_teleport())
 	}
-	fn report_holding(_response_info: &QueryResponseInfo, _assets: &MultiAssetFilter) -> Weight {
+	fn report_holding(_response_info: &QueryResponseInfo, _assets: &AssetFilter) -> Weight {
 		XcmGeneric::<Runtime>::report_holding()
 	}
-	fn buy_execution(_fees: &MultiAsset, _weight_limit: &WeightLimit) -> Weight {
+	fn buy_execution(_fees: &Asset, _weight_limit: &WeightLimit) -> Weight {
 		XcmGeneric::<Runtime>::buy_execution()
 	}
 	fn refund_surplus() -> Weight {
@@ -164,7 +152,7 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubWestendXcmWeight<Call> {
 	fn clear_error() -> Weight {
 		XcmGeneric::<Runtime>::clear_error()
 	}
-	fn claim_asset(_assets: &MultiAssets, _ticket: &MultiLocation) -> Weight {
+	fn claim_asset(_assets: &Assets, _ticket: &Location) -> Weight {
 		XcmGeneric::<Runtime>::claim_asset()
 	}
 	fn trap(_code: &u64) -> Weight {
@@ -176,13 +164,13 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubWestendXcmWeight<Call> {
 	fn unsubscribe_version() -> Weight {
 		XcmGeneric::<Runtime>::unsubscribe_version()
 	}
-	fn burn_asset(assets: &MultiAssets) -> Weight {
+	fn burn_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::burn_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::burn_asset())
 	}
-	fn expect_asset(assets: &MultiAssets) -> Weight {
+	fn expect_asset(assets: &Assets) -> Weight {
-		assets.weigh_multi_assets(XcmGeneric::<Runtime>::expect_asset())
+		assets.weigh_assets(XcmGeneric::<Runtime>::expect_asset())
 	}
-	fn expect_origin(_origin: &Option<MultiLocation>) -> Weight {
+	fn expect_origin(_origin: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::expect_origin()
 	}
 	fn expect_error(_error: &Option<(u32, XcmError)>) -> Weight {
@@ -216,16 +204,16 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubWestendXcmWeight<Call> {
 		let inner_encoded_len = inner.encode().len() as u32;
 		XcmGeneric::<Runtime>::export_message(inner_encoded_len)
 	}
-	fn lock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn lock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn unlock_asset(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn unlock_asset(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn note_unlockable(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn note_unlockable(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
-	fn request_unlock(_: &MultiAsset, _: &MultiLocation) -> Weight {
+	fn request_unlock(_: &Asset, _: &Location) -> Weight {
 		Weight::MAX
 	}
 	fn set_fees_mode(_: &bool) -> Weight {
@@ -237,11 +225,11 @@ impl<Call> XcmWeightInfo<Call> for BridgeHubWestendXcmWeight<Call> {
 	fn clear_topic() -> Weight {
 		XcmGeneric::<Runtime>::clear_topic()
 	}
-	fn alias_origin(_: &MultiLocation) -> Weight {
+	fn alias_origin(_: &Location) -> Weight {
 		// XCM Executor does not currently support alias origin operations
 		Weight::MAX
 	}
-	fn unpaid_execution(_: &WeightLimit, _: &Option<MultiLocation>) -> Weight {
+	fn unpaid_execution(_: &WeightLimit, _: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::unpaid_execution()
 	}
 }

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/xcm_config.rs

@@ -21,7 +21,7 @@ use super::{
 };
 use crate::bridge_common_config::{DeliveryRewardInBalance, RequiredStakeForStakeAndSlash};
 use frame_support::{
-	match_types, parameter_types,
+	parameter_types,
 	traits::{ConstU32, Contains, Equals, Everything, Nothing},
 };
 use frame_system::EnsureRoot;
@@ -52,18 +52,18 @@ use xcm_builder::{
 use xcm_executor::{traits::WithOriginFilter, XcmExecutor};
 
 parameter_types! {
-	pub const WestendLocation: MultiLocation = MultiLocation::parent();
+	pub const WestendLocation: Location = Location::parent();
 	pub const RelayNetwork: NetworkId = NetworkId::Westend;
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
-	pub UniversalLocation: InteriorMultiLocation =
+	pub UniversalLocation: InteriorLocation =
-		X2(GlobalConsensus(RelayNetwork::get()), Parachain(ParachainInfo::parachain_id().into()));
+		[GlobalConsensus(RelayNetwork::get()), Parachain(ParachainInfo::parachain_id().into())].into();
 	pub const MaxInstructions: u32 = 100;
 	pub const MaxAssetsIntoHolding: u32 = 64;
 	pub TreasuryAccount: AccountId = TREASURY_PALLET_ID.into_account_truncating();
-	pub RelayTreasuryLocation: MultiLocation = (Parent, PalletInstance(westend_runtime_constants::TREASURY_PALLET_ID)).into();
+	pub RelayTreasuryLocation: Location = (Parent, PalletInstance(westend_runtime_constants::TREASURY_PALLET_ID)).into();
 }
 
-/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
+/// Type for specifying how a `Location` can be converted into an `AccountId`. This is used
 /// when determining ownership of accounts for asset transacting and when attempting to use XCM
 /// `Transact` in order to determine the dispatch Origin.
 pub type LocationToAccountId = (
@@ -82,7 +82,7 @@ pub type CurrencyTransactor = CurrencyAdapter<
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	IsConcrete<WestendLocation>,
-	// Do a simple punn to convert an AccountId32 MultiLocation into a native chain account ID:
+	// Do a simple punn to convert an AccountId32 Location into a native chain account ID:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -114,11 +114,11 @@ pub type XcmOriginToTransactDispatchOrigin = (
 	XcmPassthrough<RuntimeOrigin>,
 );
 
-match_types! {
+pub struct ParentOrParentsPlurality;
-	pub type ParentOrParentsPlurality: impl Contains<MultiLocation> = {
+impl Contains<Location> for ParentOrParentsPlurality {
-		MultiLocation { parents: 1, interior: Here } |
+	fn contains(location: &Location) -> bool {
-		MultiLocation { parents: 1, interior: X1(Plurality { .. }) }
+		matches!(location.unpack(), (1, []) | (1, [Plurality { .. }]))
-	};
+	}
 }
 
 /// A call filter for the XCM Transact instruction. This is a temporary measure until we properly
@@ -270,7 +270,7 @@ impl xcm_executor::Config for XcmConfig {
 pub type PriceForParentDelivery =
 	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
 
-/// Converts a local signed origin into an XCM multilocation.
+/// Converts a local signed origin into an XCM location.
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/tests/tests.rs

@@ -207,7 +207,7 @@ fn handle_export_message_from_system_parachain_add_to_outbound_queue_works() {
 					_ => None,
 				}
 			}),
-			|| ExportMessage { network: Rococo, destination: X1(Parachain(bridge_to_rococo_config::AssetHubRococoParaId::get().into())), xcm: Xcm(vec![]) },
+			|| ExportMessage { network: Rococo, destination: [Parachain(bridge_to_rococo_config::AssetHubRococoParaId::get().into())].into(), xcm: Xcm(vec![]) },
 			XCM_LANE_FOR_ASSET_HUB_WESTEND_TO_ASSET_HUB_ROCOCO,
 			Some((WestendLocation::get(), ExistentialDeposit::get()).into()),
 			// value should be >= than value generated by `can_calculate_weight_for_paid_export_message_with_reserve_transfer`

cumulus/parachains/runtimes/bridge-hubs/common/src/message_queue.rs

@@ -23,7 +23,7 @@ use pallet_message_queue::OnQueueChanged;
 use scale_info::TypeInfo;
 use snowbridge_core::ChannelId;
 use sp_std::{marker::PhantomData, prelude::*};
-use xcm::v3::{Junction, MultiLocation};
+use xcm::v4::{Junction, Location};
 
 /// The aggregate origin of an inbound message.
 /// This is specialized for BridgeHub, as the snowbridge-outbound-queue-pallet is also using
@@ -46,16 +46,16 @@ pub enum AggregateMessageOrigin {
 	Snowbridge(ChannelId),
 }
 
-impl From<AggregateMessageOrigin> for MultiLocation {
+impl From<AggregateMessageOrigin> for Location {
 	fn from(origin: AggregateMessageOrigin) -> Self {
 		use AggregateMessageOrigin::*;
 		match origin {
-			Here => MultiLocation::here(),
+			Here => Location::here(),
-			Parent => MultiLocation::parent(),
+			Parent => Location::parent(),
-			Sibling(id) => MultiLocation::new(1, Junction::Parachain(id.into())),
+			Sibling(id) => Location::new(1, Junction::Parachain(id.into())),
 			// NOTE: We don't need this conversion for Snowbridge. However we have to
 			// implement it anyway as xcm_builder::ProcessXcmMessage requires it.
-			Snowbridge(_) => MultiLocation::default(),
+			Snowbridge(_) => Location::default(),
 		}
 	}
 }

cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_cases/from_grandpa_chain.rs

@@ -336,9 +336,9 @@ where
 				(),
 			>(
 				LaneId::default(),
-				vec![xcm::v3::Instruction::<()>::ClearOrigin; 1_024].into(),
+				vec![Instruction::<()>::ClearOrigin; 1_024].into(),
 				1,
-				X2(GlobalConsensus(Polkadot), Parachain(1_000)),
+				[GlobalConsensus(Polkadot), Parachain(1_000)].into(),
 				1u32.into(),
 			);
 

cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_cases/from_parachain.rs

@@ -418,9 +418,9 @@ where
 			(),
 		>(
 			LaneId::default(),
-			vec![xcm::v3::Instruction::<()>::ClearOrigin; 1_024].into(),
+			vec![Instruction::<()>::ClearOrigin; 1_024].into(),
 			1,
-			X2(GlobalConsensus(Polkadot), Parachain(1_000)),
+			[GlobalConsensus(Polkadot), Parachain(1_000)].into(),
 			1,
 			5,
 			1_000,

cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_cases/helpers.rs

@@ -230,7 +230,7 @@ pub fn relayed_incoming_message_works<Runtime, AllPalletsWithoutSystem, MPI>(
 	prepare_message_proof_import: impl FnOnce(
 		Runtime::AccountId,
 		Runtime::InboundRelayer,
-		InteriorMultiLocation,
+		InteriorLocation,
 		MessageNonce,
 		Xcm<()>,
 	) -> CallsAndVerifiers<Runtime>,
@@ -276,21 +276,21 @@ pub fn relayed_incoming_message_works<Runtime, AllPalletsWithoutSystem, MPI>(
 
 			// set up relayer details and proofs
 
-			let message_destination =
+			let message_destination: InteriorLocation =
-				X2(GlobalConsensus(local_relay_chain_id), Parachain(sibling_parachain_id));
+				[GlobalConsensus(local_relay_chain_id), Parachain(sibling_parachain_id)].into();
 			// some random numbers (checked by test)
 			let message_nonce = 1;
 
-			let xcm = vec![xcm::v3::Instruction::<()>::ClearOrigin; 42];
+			let xcm = vec![Instruction::<()>::ClearOrigin; 42];
 			let expected_dispatch = xcm::latest::Xcm::<()>({
 				let mut expected_instructions = xcm.clone();
 				// dispatch prepends bridge pallet instance
 				expected_instructions.insert(
 					0,
-					DescendOrigin(X1(PalletInstance(
+					DescendOrigin([PalletInstance(
 						<pallet_bridge_messages::Pallet<Runtime, MPI> as PalletInfoAccess>::index()
 							as u8,
-					))),
+					)].into()),
 				);
 				expected_instructions
 			});

cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_cases/mod.rs

@@ -319,8 +319,8 @@ pub fn handle_export_message_from_system_parachain_to_outbound_queue_works<
 	>,
 	export_message_instruction: fn() -> Instruction<XcmConfig::RuntimeCall>,
 	expected_lane_id: LaneId,
-	existential_deposit: Option<MultiAsset>,
+	existential_deposit: Option<Asset>,
-	maybe_paid_export_message: Option<MultiAsset>,
+	maybe_paid_export_message: Option<Asset>,
 	prepare_configuration: impl Fn(),
 ) where
 	Runtime: BasicParachainRuntime + BridgeMessagesConfig<MessagesPalletInstance>,
@@ -328,7 +328,7 @@ pub fn handle_export_message_from_system_parachain_to_outbound_queue_works<
 	MessagesPalletInstance: 'static,
 {
 	assert_ne!(runtime_para_id, sibling_parachain_id);
-	let sibling_parachain_location = MultiLocation::new(1, Parachain(sibling_parachain_id));
+	let sibling_parachain_location = Location::new(1, [Parachain(sibling_parachain_id)]);
 
 	run_test::<Runtime, _>(collator_session_key, runtime_para_id, vec![], || {
 		prepare_configuration();
@@ -361,7 +361,7 @@ pub fn handle_export_message_from_system_parachain_to_outbound_queue_works<
 			.expect("deposited fee");
 
 			Xcm(vec![
-				WithdrawAsset(MultiAssets::from(vec![fee.clone()])),
+				WithdrawAsset(Assets::from(vec![fee.clone()])),
 				BuyExecution { fees: fee, weight_limit: Unlimited },
 				export_message_instruction(),
 			])
@@ -373,12 +373,13 @@ pub fn handle_export_message_from_system_parachain_to_outbound_queue_works<
 		};
 
 		// execute XCM
-		let hash = xcm.using_encoded(sp_io::hashing::blake2_256);
+		let mut hash = xcm.using_encoded(sp_io::hashing::blake2_256);
-		assert_ok!(XcmExecutor::<XcmConfig>::execute_xcm(
+		assert_ok!(XcmExecutor::<XcmConfig>::prepare_and_execute(
 			sibling_parachain_location,
 			xcm,
-			hash,
+			&mut hash,
 			RuntimeHelper::<Runtime>::xcm_max_weight(XcmReceivedFrom::Sibling),
+			Weight::zero(),
 		)
 		.ensure_complete());
 
@@ -446,9 +447,9 @@ pub fn message_dispatch_routing_works<
 	NetworkDistanceAsParentCount: Get<u8>,
 {
 	struct NetworkWithParentCount<N, C>(core::marker::PhantomData<(N, C)>);
-	impl<N: Get<NetworkId>, C: Get<u8>> Get<MultiLocation> for NetworkWithParentCount<N, C> {
+	impl<N: Get<NetworkId>, C: Get<u8>> Get<Location> for NetworkWithParentCount<N, C> {
-		fn get() -> MultiLocation {
+		fn get() -> Location {
-			MultiLocation { parents: C::get(), interior: X1(GlobalConsensus(N::get())) }
+			Location::new(C::get(), [GlobalConsensus(N::get())])
 		}
 	}
 
@@ -495,7 +496,7 @@ pub fn message_dispatch_routing_works<
 			BridgedNetwork,
 			NetworkWithParentCount<RuntimeNetwork, NetworkDistanceAsParentCount>,
 			AlwaysLatest,
-		>((RuntimeNetwork::get(), X1(Parachain(sibling_parachain_id))));
+		>((RuntimeNetwork::get(), [Parachain(sibling_parachain_id)].into()));
 
 		// 2.1. WITHOUT opened hrmp channel -> RoutingError
 		let result =
@@ -565,52 +566,43 @@ where
 {
 	// data here are not relevant for weighing
 	let mut xcm = Xcm(vec![
-		WithdrawAsset(MultiAssets::from(vec![MultiAsset {
+		WithdrawAsset(Assets::from(vec![Asset {
-			id: Concrete(MultiLocation { parents: 1, interior: Here }),
+			id: AssetId(Location::new(1, [])),
 			fun: Fungible(34333299),
 		}])),
 		BuyExecution {
-			fees: MultiAsset {
+			fees: Asset { id: AssetId(Location::new(1, [])), fun: Fungible(34333299) },
-				id: Concrete(MultiLocation { parents: 1, interior: Here }),
-				fun: Fungible(34333299),
-			},
 			weight_limit: Unlimited,
 		},
 		ExportMessage {
 			network: Polkadot,
-			destination: X1(Parachain(1000)),
+			destination: [Parachain(1000)].into(),
 			xcm: Xcm(vec![
-				ReserveAssetDeposited(MultiAssets::from(vec![MultiAsset {
+				ReserveAssetDeposited(Assets::from(vec![Asset {
-					id: Concrete(MultiLocation {
+					id: AssetId(Location::new(2, [GlobalConsensus(Kusama)])),
-						parents: 2,
-						interior: X1(GlobalConsensus(Kusama)),
-					}),
 					fun: Fungible(1000000000000),
 				}])),
 				ClearOrigin,
 				BuyExecution {
-					fees: MultiAsset {
+					fees: Asset {
-						id: Concrete(MultiLocation {
+						id: AssetId(Location::new(2, [GlobalConsensus(Kusama)])),
-							parents: 2,
-							interior: X1(GlobalConsensus(Kusama)),
-						}),
 						fun: Fungible(1000000000000),
 					},
 					weight_limit: Unlimited,
 				},
 				DepositAsset {
 					assets: Wild(AllCounted(1)),
-					beneficiary: MultiLocation {
+					beneficiary: Location::new(
-						parents: 0,
+						0,
-						interior: X1(xcm::latest::prelude::AccountId32 {
+						[xcm::latest::prelude::AccountId32 {
 							network: None,
 							id: [
 								212, 53, 147, 199, 21, 253, 211, 28, 97, 20, 26, 189, 4, 169, 159,
 								214, 130, 44, 133, 88, 133, 76, 205, 227, 154, 86, 132, 231, 165,
 								109, 162, 125,
 							],
-						}),
+						}],
-					},
+					),
 				},
 				SetTopic([
 					116, 82, 194, 132, 171, 114, 217, 165, 23, 37, 161, 177, 165, 179, 247, 114,
@@ -618,10 +610,7 @@ where
 				]),
 			]),
 		},
-		DepositAsset {
+		DepositAsset { assets: Wild(All), beneficiary: Location::new(1, [Parachain(1000)]) },
-			assets: Wild(All),
-			beneficiary: MultiLocation { parents: 1, interior: X1(Parachain(1000)) },
-		},
 		SetTopic([
 			36, 224, 250, 165, 82, 195, 67, 110, 160, 170, 140, 87, 217, 62, 201, 164, 42, 98, 219,
 			157, 124, 105, 248, 25, 131, 218, 199, 36, 109, 173, 100, 122,

cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_data/mod.rs

@@ -37,10 +37,10 @@ use xcm_executor::traits::{validate_export, ExportXcm};
 
 pub fn prepare_inbound_xcm<InnerXcmRuntimeCall>(
 	xcm_message: Xcm<InnerXcmRuntimeCall>,
-	destination: InteriorMultiLocation,
+	destination: InteriorLocation,
 ) -> Vec<u8> {
-	let location = xcm::VersionedInteriorMultiLocation::V3(destination);
+	let location = xcm::VersionedInteriorLocation::V4(destination);
-	let xcm = xcm::VersionedXcm::<InnerXcmRuntimeCall>::V3(xcm_message);
+	let xcm = xcm::VersionedXcm::<InnerXcmRuntimeCall>::V4(xcm_message);
 	// this is the `BridgeMessage` from polkadot xcm builder, but it has no constructor
 	// or public fields, so just tuple
 	// (double encoding, because `.encode()` is called on original Xcm BLOB when it is pushed
@@ -101,7 +101,7 @@ macro_rules! grab_haul_blob (
 /// which are transferred over bridge.
 pub(crate) fn simulate_message_exporter_on_bridged_chain<
 	SourceNetwork: Get<NetworkId>,
-	DestinationNetwork: Get<MultiLocation>,
+	DestinationNetwork: Get<Location>,
 	DestinationVersion: GetVersion,
 >(
 	(destination_network, destination_junctions): (NetworkId, Junctions),
@@ -109,8 +109,8 @@ pub(crate) fn simulate_message_exporter_on_bridged_chain<
 	grab_haul_blob!(GrabbingHaulBlob, GRABBED_HAUL_BLOB_PAYLOAD);
 
 	// lets pretend that some parachain on bridged chain exported the message
-	let universal_source_on_bridged_chain =
+	let universal_source_on_bridged_chain: Junctions =
-		X2(GlobalConsensus(SourceNetwork::get()), Parachain(5678));
+		[GlobalConsensus(SourceNetwork::get()), Parachain(5678)].into();
 	let channel = 1_u32;
 
 	// simulate XCM message export

cumulus/parachains/runtimes/collectives/collectives-westend/src/ambassador/mod.rs

@@ -215,7 +215,7 @@ pub type AmbassadorSalaryInstance = pallet_salary::Instance2;
 parameter_types! {
 	// The interior location on AssetHub for the paying account. This is the Ambassador Salary
 	// pallet instance (which sits at index 74). This sovereign account will need funding.
-	pub AmbassadorSalaryLocation: InteriorMultiLocation = PalletInstance(74).into();
+	pub AmbassadorSalaryLocation: InteriorLocation = PalletInstance(74).into();
 }
 
 /// [`PayOverXcm`] setup to pay the Ambassador salary on the AssetHub in WND.

cumulus/parachains/runtimes/collectives/collectives-westend/src/fellowship/mod.rs

@@ -43,7 +43,7 @@ use parachains_common::{
 	westend::{account, currency::GRAND},
 };
 use polkadot_runtime_common::impls::{
-	LocatableAssetConverter, VersionedLocatableAsset, VersionedMultiLocationConverter,
+	LocatableAssetConverter, VersionedLocatableAsset, VersionedLocationConverter,
 };
 use sp_arithmetic::Permill;
 use sp_core::{ConstU128, ConstU32};
@@ -202,7 +202,7 @@ pub type FellowshipSalaryInstance = pallet_salary::Instance1;
 parameter_types! {
 	// The interior location on AssetHub for the paying account. This is the Fellowship Salary
 	// pallet instance (which sits at index 64). This sovereign account will need funding.
-	pub Interior: InteriorMultiLocation = PalletInstance(64).into();
+	pub Interior: InteriorLocation = PalletInstance(64).into();
 }
 
 const USDT_UNITS: u128 = 1_000_000;
@@ -250,7 +250,7 @@ parameter_types! {
 	pub const MaxBalance: Balance = Balance::max_value();
 	// The asset's interior location for the paying account. This is the Fellowship Treasury
 	// pallet instance (which sits at index 65).
-	pub FellowshipTreasuryInteriorLocation: InteriorMultiLocation = PalletInstance(65).into();
+	pub FellowshipTreasuryInteriorLocation: InteriorLocation = PalletInstance(65).into();
 }
 
 #[cfg(feature = "runtime-benchmarks")]
@@ -269,10 +269,10 @@ pub type FellowshipTreasuryPaymaster = PayOverXcm<
 	crate::xcm_config::XcmRouter,
 	crate::PolkadotXcm,
 	ConstU32<{ 6 * HOURS }>,
-	VersionedMultiLocation,
+	VersionedLocation,
 	VersionedLocatableAsset,
 	LocatableAssetConverter,
-	VersionedMultiLocationConverter,
+	VersionedLocationConverter,
 >;
 
 pub type FellowshipTreasuryInstance = pallet_treasury::Instance1;
@@ -327,7 +327,7 @@ impl pallet_treasury::Config<FellowshipTreasuryInstance> for Runtime {
 		>,
 	>;
 	type AssetKind = VersionedLocatableAsset;
-	type Beneficiary = VersionedMultiLocation;
+	type Beneficiary = VersionedLocation;
 	type BeneficiaryLookup = IdentityLookup<Self::Beneficiary>;
 	#[cfg(not(feature = "runtime-benchmarks"))]
 	type Paymaster = FellowshipTreasuryPaymaster;

cumulus/parachains/runtimes/collectives/collectives-westend/src/lib.rs

@@ -427,7 +427,7 @@ impl cumulus_pallet_aura_ext::Config for Runtime {}
 
 parameter_types! {
 	/// The asset ID for the asset that we use to pay for message delivery fees.
-	pub FeeAssetId: AssetId = Concrete(xcm_config::WndLocation::get());
+	pub FeeAssetId: AssetId = AssetId(xcm_config::WndLocation::get());
 	/// The base fee for the message delivery fees.
 	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
 }
@@ -974,28 +974,28 @@ impl_runtime_apis! {
 
 			use pallet_xcm::benchmarking::Pallet as PalletXcmExtrinsicsBenchmark;
 			impl pallet_xcm::benchmarking::Config for Runtime {
-				fn reachable_dest() -> Option<MultiLocation> {
+				fn reachable_dest() -> Option<Location> {
 					Some(Parent.into())
 				}
 
-				fn teleportable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn teleportable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Relay/native token can be teleported between Collectives and Relay.
 					Some((
-						MultiAsset {
+						Asset {
 							fun: Fungible(EXISTENTIAL_DEPOSIT),
-							id: Concrete(Parent.into())
+							id: AssetId(Parent.into())
 						}.into(),
 						Parent.into(),
 					))
 				}
 
-				fn reserve_transferable_asset_and_dest() -> Option<(MultiAsset, MultiLocation)> {
+				fn reserve_transferable_asset_and_dest() -> Option<(Asset, Location)> {
 					// Reserve transfers are disabled on Collectives.
 					None
 				}
 
 				fn set_up_complex_asset_transfer(
-				) -> Option<(MultiAssets, u32, MultiLocation, Box<dyn FnOnce()>)> {
+				) -> Option<(Assets, u32, Location, Box<dyn FnOnce()>)> {
 					// Collectives only supports teleports to system parachain.
 					// Relay/native token can be teleported between Collectives and Relay.
 					let native_location = Parent.into();

cumulus/parachains/runtimes/collectives/collectives-westend/src/xcm_config.rs

@@ -19,7 +19,7 @@ use super::{
 	TransactionByteFee, WeightToFee, WestendTreasuryAccount, XcmpQueue,
 };
 use frame_support::{
-	match_types, parameter_types,
+	parameter_types,
 	traits::{ConstU32, Contains, Equals, Everything, Nothing},
 	weights::Weight,
 };
@@ -51,17 +51,17 @@ use xcm_builder::{
 use xcm_executor::{traits::WithOriginFilter, XcmExecutor};
 
 parameter_types! {
-	pub const WndLocation: MultiLocation = MultiLocation::parent();
+	pub const WndLocation: Location = Location::parent();
 	pub const RelayNetwork: Option<NetworkId> = Some(NetworkId::Westend);
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
-	pub UniversalLocation: InteriorMultiLocation =
+	pub UniversalLocation: InteriorLocation =
-		X2(GlobalConsensus(RelayNetwork::get().unwrap()), Parachain(ParachainInfo::parachain_id().into()));
+		[GlobalConsensus(RelayNetwork::get().unwrap()), Parachain(ParachainInfo::parachain_id().into())].into();
-	pub RelayTreasuryLocation: MultiLocation = (Parent, PalletInstance(westend_runtime_constants::TREASURY_PALLET_ID)).into();
+	pub RelayTreasuryLocation: Location = (Parent, PalletInstance(westend_runtime_constants::TREASURY_PALLET_ID)).into();
 	pub CheckingAccount: AccountId = PolkadotXcm::check_account();
-	pub const GovernanceLocation: MultiLocation = MultiLocation::parent();
+	pub const GovernanceLocation: Location = Location::parent();
 	pub const FellowshipAdminBodyId: BodyId = BodyId::Index(xcm_constants::body::FELLOWSHIP_ADMIN_INDEX);
+	pub AssetHub: Location = (Parent, Parachain(1000)).into();
 	pub const TreasurerBodyId: BodyId = BodyId::Index(xcm_constants::body::TREASURER_INDEX);
-	pub AssetHub: MultiLocation = (Parent, Parachain(1000)).into();
 	pub AssetHubUsdtId: AssetId = (PalletInstance(50), GeneralIndex(1984)).into();
 	pub UsdtAssetHub: LocatableAssetId = LocatableAssetId {
 		location: AssetHub::get(),
@@ -73,7 +73,7 @@ parameter_types! {
 	};
 }
 
-/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
+/// Type for specifying how a `Location` can be converted into an `AccountId`. This is used
 /// when determining ownership of accounts for asset transacting and when attempting to use XCM
 /// `Transact` in order to determine the dispatch Origin.
 pub type LocationToAccountId = (
@@ -92,7 +92,7 @@ pub type CurrencyTransactor = CurrencyAdapter<
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
 	IsConcrete<WndLocation>,
-	// Convert an XCM MultiLocation into a local account id:
+	// Convert an XCM Location into a local account id:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):
 	AccountId,
@@ -136,11 +136,11 @@ parameter_types! {
 	pub const FellowsBodyId: BodyId = BodyId::Technical;
 }
 
-match_types! {
+pub struct ParentOrParentsPlurality;
-	pub type ParentOrParentsPlurality: impl Contains<MultiLocation> = {
+impl Contains<Location> for ParentOrParentsPlurality {
-		MultiLocation { parents: 1, interior: Here } |
+	fn contains(location: &Location) -> bool {
-		MultiLocation { parents: 1, interior: X1(Plurality { .. }) }
+		matches!(location.unpack(), (1, []) | (1, [Plurality { .. }]))
-	};
+	}
 }
 
 /// A call filter for the XCM Transact instruction. This is a temporary measure until we properly
@@ -292,7 +292,7 @@ impl xcm_executor::Config for XcmConfig {
 	type Aliasers = Nothing;
 }
 
-/// Converts a local signed origin into an XCM multilocation.
+/// Converts a local signed origin into an XCM location.
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
@@ -310,10 +310,10 @@ pub type XcmRouter = WithUniqueTopic<(
 
 #[cfg(feature = "runtime-benchmarks")]
 parameter_types! {
-	pub ReachableDest: Option<MultiLocation> = Some(Parent.into());
+	pub ReachableDest: Option<Location> = Some(Parent.into());
 }
 
-/// Type to convert the Fellows origin to a Plurality `MultiLocation` value.
+/// Type to convert the Fellows origin to a Plurality `Location` value.
 pub type FellowsToPlurality = OriginToPluralityVoice<RuntimeOrigin, Fellows, FellowsBodyId>;
 
 impl pallet_xcm::Config for Runtime {