Deprecate Currency: Companion for #12951 (#6780)

* Some renames

* Fix

* Fix build for new APIs

* Remove diener

* Fixes

* Fixes

* Fix integration tests

* Fixes

* fix nis issuance

* Update Cargo.toml

* Polkadot doesn't have freezes/holds yet

* No networks use freezes/holds

* update lockfile for {"substrate"}

* Fix tests

There are more failing tests; just starting with the easy ones.
Reserved balance does not count towards ED anymore, therefore reducing
all the reserves by ED (1).

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Fixes for Polkadot pallets

* Fix parachains benchmarks

* Update Substrate

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: parity-processbot <>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

polkadot/node/test/service/src/lib.rs

@@ -395,10 +395,11 @@ pub fn construct_transfer_extrinsic(
 	dest: sp_keyring::AccountKeyring,
 	value: Balance,
 ) -> UncheckedExtrinsic {
-	let function = polkadot_test_runtime::RuntimeCall::Balances(pallet_balances::Call::transfer {
+	let function =
-		dest: MultiSigner::from(dest.public()).into_account().into(),
+		polkadot_test_runtime::RuntimeCall::Balances(pallet_balances::Call::transfer_allow_death {
-		value,
+			dest: MultiSigner::from(dest.public()).into_account().into(),
-	});
+			value,
+		});
 
 	construct_extrinsic(client, function, origin, 0)
 }

polkadot/node/test/service/tests/call-function.rs

@@ -24,10 +24,11 @@ async fn call_function_actually_work() {
 
 	let alice = run_validator_node(alice_config, None);
 
-	let function = polkadot_test_runtime::RuntimeCall::Balances(pallet_balances::Call::transfer {
+	let function =
-		dest: Charlie.to_account_id().into(),
+		polkadot_test_runtime::RuntimeCall::Balances(pallet_balances::Call::transfer_allow_death {
-		value: 1,
+			dest: Charlie.to_account_id().into(),
-	});
+			value: 1,
+		});
 	let output = alice.send_extrinsic(function, Bob).await.unwrap();
 
 	let res = output.result;

polkadot/runtime/common/src/assigned_slots.rs

@@ -631,6 +631,10 @@ mod tests {
 		type MaxLocks = ();
 		type MaxReserves = ();
 		type ReserveIdentifier = [u8; 8];
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	impl parachains_configuration::Config for Test {

polkadot/runtime/common/src/auctions.rs

@@ -679,7 +679,7 @@ mod tests {
 		assert_noop, assert_ok, assert_storage_noop,
 		dispatch::DispatchError::BadOrigin,
 		ord_parameter_types, parameter_types,
-		traits::{EitherOfDiverse, OnFinalize, OnInitialize},
+		traits::{ConstU32, EitherOfDiverse, OnFinalize, OnInitialize},
 	};
 	use frame_system::{EnsureRoot, EnsureSignedBy};
 	use pallet_balances;
@@ -748,6 +748,10 @@ mod tests {
 		type MaxLocks = ();
 		type MaxReserves = MaxReserves;
 		type ReserveIdentifier = [u8; 8];
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	#[derive(Eq, PartialEq, Ord, PartialOrd, Clone, Copy, Debug)]
@@ -1412,24 +1416,25 @@ mod tests {
 			let para_2 = ParaId::from(2_u32);
 
 			// Make a bid and reserve a balance
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(1), para_1, 1, 1, 4, 10));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(1), para_1, 1, 1, 4, 9));
-			assert_eq!(Balances::reserved_balance(1), 10);
+			assert_eq!(Balances::reserved_balance(1), 9);
-			assert_eq!(ReservedAmounts::<Test>::get((1, para_1)), Some(10));
+			assert_eq!(ReservedAmounts::<Test>::get((1, para_1)), Some(9));
 			assert_eq!(Balances::reserved_balance(2), 0);
 			assert_eq!(ReservedAmounts::<Test>::get((2, para_2)), None);
 
 			// Bigger bid, reserves new balance and returns funds
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(2), para_2, 1, 1, 4, 20));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(2), para_2, 1, 1, 4, 19));
 			assert_eq!(Balances::reserved_balance(1), 0);
 			assert_eq!(ReservedAmounts::<Test>::get((1, para_1)), None);
-			assert_eq!(Balances::reserved_balance(2), 20);
+			assert_eq!(Balances::reserved_balance(2), 19);
-			assert_eq!(ReservedAmounts::<Test>::get((2, para_2)), Some(20));
+			assert_eq!(ReservedAmounts::<Test>::get((2, para_2)), Some(19));
 		});
 	}
 
 	#[test]
 	fn initialize_winners_in_ending_period_works() {
 		new_test_ext().execute_with(|| {
+			assert_eq!(<Test as pallet_balances::Config>::ExistentialDeposit::get(), 1);
 			run_to_block(1);
 			assert_ok!(Auctions::new_auction(RuntimeOrigin::signed(6), 9, 1));
 			let para_1 = ParaId::from(1_u32);
@@ -1437,16 +1442,16 @@ mod tests {
 			let para_3 = ParaId::from(3_u32);
 
 			// Make bids
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(1), para_1, 1, 1, 4, 10));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(1), para_1, 1, 1, 4, 9));
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(2), para_2, 1, 3, 4, 20));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(2), para_2, 1, 3, 4, 19));
 
 			assert_eq!(
 				Auctions::auction_status(System::block_number()),
 				AuctionStatus::<u32>::StartingPeriod
 			);
 			let mut winning = [None; SlotRange::SLOT_RANGE_COUNT];
-			winning[SlotRange::ZeroThree as u8 as usize] = Some((1, para_1, 10));
+			winning[SlotRange::ZeroThree as u8 as usize] = Some((1, para_1, 9));
-			winning[SlotRange::TwoThree as u8 as usize] = Some((2, para_2, 20));
+			winning[SlotRange::TwoThree as u8 as usize] = Some((2, para_2, 19));
 			assert_eq!(Auctions::winning(0), Some(winning));
 
 			run_to_block(9);
@@ -1468,14 +1473,14 @@ mod tests {
 				AuctionStatus::<u32>::EndingPeriod(1, 0)
 			);
 			assert_eq!(Auctions::winning(1), Some(winning));
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(3), para_3, 1, 3, 4, 30));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(3), para_3, 1, 3, 4, 29));
 
 			run_to_block(12);
 			assert_eq!(
 				Auctions::auction_status(System::block_number()),
 				AuctionStatus::<u32>::EndingPeriod(2, 0)
 			);
-			winning[SlotRange::TwoThree as u8 as usize] = Some((3, para_3, 30));
+			winning[SlotRange::TwoThree as u8 as usize] = Some((3, para_3, 29));
 			assert_eq!(Auctions::winning(2), Some(winning));
 		});
 	}
@@ -1542,6 +1547,7 @@ mod tests {
 	#[test]
 	fn less_winning_samples_work() {
 		new_test_ext().execute_with(|| {
+			assert_eq!(<Test as pallet_balances::Config>::ExistentialDeposit::get(), 1);
 			EndingPeriod::set(30);
 			SampleLength::set(10);
 
@@ -1552,16 +1558,16 @@ mod tests {
 			let para_3 = ParaId::from(3_u32);
 
 			// Make bids
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(1), para_1, 1, 11, 14, 10));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(1), para_1, 1, 11, 14, 9));
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(2), para_2, 1, 13, 14, 20));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(2), para_2, 1, 13, 14, 19));
 
 			assert_eq!(
 				Auctions::auction_status(System::block_number()),
 				AuctionStatus::<u32>::StartingPeriod
 			);
 			let mut winning = [None; SlotRange::SLOT_RANGE_COUNT];
-			winning[SlotRange::ZeroThree as u8 as usize] = Some((1, para_1, 10));
+			winning[SlotRange::ZeroThree as u8 as usize] = Some((1, para_1, 9));
-			winning[SlotRange::TwoThree as u8 as usize] = Some((2, para_2, 20));
+			winning[SlotRange::TwoThree as u8 as usize] = Some((2, para_2, 19));
 			assert_eq!(Auctions::winning(0), Some(winning));
 
 			run_to_block(9);
@@ -1578,8 +1584,8 @@ mod tests {
 			assert_eq!(Auctions::winning(0), Some(winning));
 
 			// New bids update the current winning
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(3), para_3, 1, 14, 14, 30));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(3), para_3, 1, 14, 14, 29));
-			winning[SlotRange::ThreeThree as u8 as usize] = Some((3, para_3, 30));
+			winning[SlotRange::ThreeThree as u8 as usize] = Some((3, para_3, 29));
 			assert_eq!(Auctions::winning(0), Some(winning));
 
 			run_to_block(20);
@@ -1590,8 +1596,8 @@ mod tests {
 			assert_eq!(Auctions::winning(1), Some(winning));
 			run_to_block(25);
 			// Overbid mid sample
-			assert_ok!(Auctions::bid(RuntimeOrigin::signed(3), para_3, 1, 13, 14, 30));
+			assert_ok!(Auctions::bid(RuntimeOrigin::signed(3), para_3, 1, 13, 14, 29));
-			winning[SlotRange::TwoThree as u8 as usize] = Some((3, para_3, 30));
+			winning[SlotRange::TwoThree as u8 as usize] = Some((3, para_3, 29));
 			assert_eq!(Auctions::winning(1), Some(winning));
 
 			run_to_block(30);
@@ -1611,8 +1617,8 @@ mod tests {
 			assert_eq!(
 				leases(),
 				vec![
-					((3.into(), 13), LeaseData { leaser: 3, amount: 30 }),
+					((3.into(), 13), LeaseData { leaser: 3, amount: 29 }),
-					((3.into(), 14), LeaseData { leaser: 3, amount: 30 }),
+					((3.into(), 14), LeaseData { leaser: 3, amount: 29 }),
 				]
 			);
 		});

polkadot/runtime/common/src/claims.rs

@@ -717,13 +717,14 @@ mod tests {
 		assert_err, assert_noop, assert_ok,
 		dispatch::{DispatchError::BadOrigin, GetDispatchInfo, Pays},
 		ord_parameter_types, parameter_types,
-		traits::{ExistenceRequirement, GenesisBuild, WithdrawReasons},
+		traits::{ConstU32, ExistenceRequirement, GenesisBuild, WithdrawReasons},
 	};
 	use pallet_balances;
 	use sp_runtime::{
 		testing::Header,
 		traits::{BlakeTwo256, Identity, IdentityLookup},
 		transaction_validity::TransactionLongevity,
+		TokenError,
 	};
 
 	type UncheckedExtrinsic = frame_system::mocking::MockUncheckedExtrinsic<Test>;
@@ -786,6 +787,10 @@ mod tests {
 		type MaxReserves = ();
 		type ReserveIdentifier = [u8; 8];
 		type WeightInfo = ();
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	parameter_types! {
@@ -1206,7 +1211,7 @@ mod tests {
 					180,
 					ExistenceRequirement::AllowDeath
 				),
-				pallet_balances::Error::<Test, _>::LiquidityRestrictions,
+				TokenError::Frozen,
 			);
 		});
 	}
@@ -1294,6 +1299,8 @@ mod tests {
 	#[test]
 	fn claiming_while_vested_doesnt_work() {
 		new_test_ext().execute_with(|| {
+			CurrencyOf::<Test>::make_free_balance_be(&69, total_claims());
+			assert_eq!(Balances::free_balance(69), total_claims());
 			// A user is already vested
 			assert_ok!(<Test as Config>::VestingSchedule::add_vesting_schedule(
 				&69,
@@ -1301,8 +1308,6 @@ mod tests {
 				100,
 				10
 			));
-			CurrencyOf::<Test>::make_free_balance_be(&69, total_claims());
-			assert_eq!(Balances::free_balance(69), total_claims());
 			assert_ok!(Claims::mint_claim(
 				RuntimeOrigin::root(),
 				eth(&bob()),

polkadot/runtime/common/src/crowdloan/mod.rs

@@ -419,6 +419,7 @@ pub mod pallet {
 
 			let deposit = T::SubmissionDeposit::get();
 
+			frame_system::Pallet::<T>::inc_providers(&Self::fund_account_id(fund_index));
 			CurrencyOf::<T>::reserve(&depositor, deposit)?;
 
 			Funds::<T>::insert(
@@ -575,6 +576,7 @@ pub mod pallet {
 			// can take care of that.
 			debug_assert!(Self::contribution_iterator(fund.fund_index).count().is_zero());
 
+			frame_system::Pallet::<T>::dec_providers(&Self::fund_account_id(fund.fund_index))?;
 			CurrencyOf::<T>::unreserve(&fund.depositor, fund.deposit);
 			Funds::<T>::remove(index);
 			Self::deposit_event(Event::<T>::Dissolved { para_id: index });
@@ -861,7 +863,7 @@ mod tests {
 
 	use frame_support::{
 		assert_noop, assert_ok, parameter_types,
-		traits::{OnFinalize, OnInitialize},
+		traits::{ConstU32, OnFinalize, OnInitialize},
 	};
 	use primitives::Id as ParaId;
 	use sp_core::H256;
@@ -943,6 +945,10 @@ mod tests {
 		type MaxReserves = ();
 		type ReserveIdentifier = [u8; 8];
 		type WeightInfo = ();
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	#[derive(Copy, Clone, Eq, PartialEq, Debug)]
@@ -987,9 +993,10 @@ mod tests {
 		let fund = Funds::<Test>::get(para).unwrap();
 		let account_id = Crowdloan::fund_account_id(fund.fund_index);
 		if winner {
+			let ed = <Test as pallet_balances::Config>::ExistentialDeposit::get();
 			let free_balance = Balances::free_balance(&account_id);
-			Balances::reserve(&account_id, free_balance)
+			Balances::reserve(&account_id, free_balance - ed)
-				.expect("should be able to reserve free balance");
+				.expect("should be able to reserve free balance minus ED");
 		} else {
 			let reserved_balance = Balances::reserved_balance(&account_id);
 			Balances::unreserve(&account_id, reserved_balance);
@@ -1613,7 +1620,7 @@ mod tests {
 			let account_id = Crowdloan::fund_account_id(index);
 
 			// user sends the crowdloan funds trying to make an accounting error
-			assert_ok!(Balances::transfer(RuntimeOrigin::signed(1), account_id, 10));
+			assert_ok!(Balances::transfer_allow_death(RuntimeOrigin::signed(1), account_id, 10));
 
 			// overfunded now
 			assert_eq!(Balances::free_balance(&account_id), 110);
@@ -1782,6 +1789,7 @@ mod tests {
 	#[test]
 	fn withdraw_from_finished_works() {
 		new_test_ext().execute_with(|| {
+			assert_eq!(<Test as pallet_balances::Config>::ExistentialDeposit::get(), 1);
 			let para = new_para();
 			let index = NextFundIndex::<Test>::get();
 			let account_id = Crowdloan::fund_account_id(index);
@@ -1793,7 +1801,7 @@ mod tests {
 			assert_ok!(Crowdloan::contribute(RuntimeOrigin::signed(2), para, 100, None));
 			assert_ok!(Crowdloan::contribute(RuntimeOrigin::signed(3), para, 50, None));
 			// simulate the reserving of para's funds. this actually happens in the Slots pallet.
-			assert_ok!(Balances::reserve(&account_id, 150));
+			assert_ok!(Balances::reserve(&account_id, 149));
 
 			run_to_block(19);
 			assert_noop!(

polkadot/runtime/common/src/impls.rs

@@ -102,11 +102,15 @@ pub fn era_payout(
 mod tests {
 	use super::*;
 	use frame_support::{
-		dispatch::DispatchClass, parameter_types, traits::FindAuthor, weights::Weight, PalletId,
+		dispatch::DispatchClass,
+		parameter_types,
+		traits::{ConstU32, FindAuthor},
+		weights::Weight,
+		PalletId,
 	};
 	use frame_system::limits;
 	use primitives::AccountId;
-	use sp_core::H256;
+	use sp_core::{ConstU64, H256};
 	use sp_runtime::{
 		testing::Header,
 		traits::{BlakeTwo256, IdentityLookup},
@@ -176,12 +180,16 @@ mod tests {
 		type Balance = u64;
 		type RuntimeEvent = RuntimeEvent;
 		type DustRemoval = ();
-		type ExistentialDeposit = ();
+		type ExistentialDeposit = ConstU64<1>;
 		type AccountStore = System;
 		type MaxLocks = ();
 		type MaxReserves = ();
 		type ReserveIdentifier = [u8; 8];
 		type WeightInfo = ();
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	parameter_types! {

polkadot/runtime/common/src/integration_tests.rs

@@ -24,7 +24,7 @@ use crate::{
 };
 use frame_support::{
 	assert_noop, assert_ok, parameter_types,
-	traits::{Currency, GenesisBuild, OnFinalize, OnInitialize},
+	traits::{ConstU32, Currency, GenesisBuild, OnFinalize, OnInitialize},
 	weights::Weight,
 	PalletId,
 };
@@ -178,6 +178,10 @@ impl pallet_balances::Config for Test {
 	type WeightInfo = ();
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 impl configuration::Config for Test {

polkadot/runtime/common/src/paras_registrar.rs

@@ -658,7 +658,7 @@ mod tests {
 		assert_noop, assert_ok,
 		error::BadOrigin,
 		parameter_types,
-		traits::{GenesisBuild, OnFinalize, OnInitialize},
+		traits::{ConstU32, GenesisBuild, OnFinalize, OnInitialize},
 	};
 	use frame_system::limits;
 	use pallet_balances::Error as BalancesError;
@@ -750,6 +750,10 @@ mod tests {
 		type MaxReserves = ();
 		type ReserveIdentifier = [u8; 8];
 		type WeightInfo = ();
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	impl shared::Config for Test {}

polkadot/runtime/common/src/purchase.rs

@@ -485,11 +485,10 @@ mod tests {
 		ord_parameter_types, parameter_types,
 		traits::{Currency, WithdrawReasons},
 	};
-	use pallet_balances::Error as BalancesError;
 	use sp_runtime::{
 		testing::Header,
 		traits::{BlakeTwo256, Dispatchable, IdentifyAccount, Identity, IdentityLookup, Verify},
-		MultiSignature,
+		ArithmeticError, MultiSignature,
 	};
 
 	type UncheckedExtrinsic = frame_system::mocking::MockUncheckedExtrinsic<Test>;
@@ -554,6 +553,10 @@ mod tests {
 		type MaxReserves = ();
 		type ReserveIdentifier = [u8; 8];
 		type WeightInfo = ();
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	parameter_types! {
@@ -815,6 +818,7 @@ mod tests {
 			);
 
 			// Account with vesting
+			Balances::make_free_balance_be(&alice(), 100);
 			assert_ok!(<Test as Config>::VestingSchedule::add_vesting_schedule(
 				&alice(),
 				100,
@@ -1127,6 +1131,7 @@ mod tests {
 			// Wrong Origin
 			assert_noop!(Purchase::payout(RuntimeOrigin::signed(alice()), alice(),), BadOrigin);
 			// Account with Existing Vesting Schedule
+			Balances::make_free_balance_be(&bob(), 100);
 			assert_ok!(
 				<Test as Config>::VestingSchedule::add_vesting_schedule(&bob(), 100, 1, 50,)
 			);
@@ -1163,8 +1168,8 @@ mod tests {
 				Permill::zero(),
 			));
 			assert_noop!(
-				Purchase::payout(RuntimeOrigin::signed(payment_account()), alice(),),
+				Purchase::payout(RuntimeOrigin::signed(payment_account()), alice()),
-				BalancesError::<Test, _>::InsufficientBalance
+				ArithmeticError::Underflow
 			);
 		});
 	}

polkadot/runtime/common/src/slots/mod.rs

@@ -568,6 +568,10 @@ mod tests {
 		type MaxLocks = ();
 		type MaxReserves = ();
 		type ReserveIdentifier = [u8; 8];
+		type HoldIdentifier = ();
+		type FreezeIdentifier = ();
+		type MaxHolds = ConstU32<1>;
+		type MaxFreezes = ConstU32<1>;
 	}
 
 	parameter_types! {
@@ -844,9 +848,9 @@ mod tests {
 			// max_num different people are reserved for leases to Para ID 1
 			for i in 1u32..=max_num {
 				let j: u64 = i.into();
-				assert_ok!(Slots::lease_out(1.into(), &j, j * 10, i * i, i));
+				assert_ok!(Slots::lease_out(1.into(), &j, j * 10 - 1, i * i, i));
-				assert_eq!(Slots::deposit_held(1.into(), &j), j * 10);
+				assert_eq!(Slots::deposit_held(1.into(), &j), j * 10 - 1);
-				assert_eq!(Balances::reserved_balance(j), j * 10);
+				assert_eq!(Balances::reserved_balance(j), j * 10 - 1);
 			}
 
 			assert_ok!(Slots::clear_all_leases(RuntimeOrigin::root(), 1.into()));

polkadot/runtime/kusama/src/lib.rs

@@ -34,6 +34,7 @@ use runtime_common::{
 	prod_or_fast, slots, BalanceToU256, BlockHashCount, BlockLength, CurrencyToVote,
 	SlowAdjustingFeeUpdate, U256ToBalance,
 };
+use scale_info::TypeInfo;
 use sp_std::{cmp::Ordering, collections::btree_map::BTreeMap, prelude::*};
 
 use runtime_parachains::{
@@ -303,6 +304,10 @@ impl pallet_balances::Config for Runtime {
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
 	type WeightInfo = weights::pallet_balances::WeightInfo<Runtime>;
+	type FreezeIdentifier = ();
+	type MaxFreezes = ();
+	type HoldIdentifier = HoldReason;
+	type MaxHolds = ConstU32<1>;
 }
 
 parameter_types! {
@@ -1236,7 +1241,6 @@ impl pallet_balances::Config<NisCounterpartInstance> for Runtime {
 	type ExistentialDeposit = ConstU128<10_000_000_000>; // One KTC cent
 	type AccountStore = StorageMapShim<
 		pallet_balances::Account<Runtime, NisCounterpartInstance>,
-		frame_system::Provider<Runtime>,
 		AccountId,
 		pallet_balances::AccountData<u128>,
 	>;
@@ -1244,10 +1248,13 @@ impl pallet_balances::Config<NisCounterpartInstance> for Runtime {
 	type MaxReserves = ConstU32<4>;
 	type ReserveIdentifier = [u8; 8];
 	type WeightInfo = weights::pallet_balances_nis_counterpart_balances::WeightInfo<Runtime>;
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {
-	pub IgnoredIssuance: Balance = Treasury::pot();
 	pub const NisBasePeriod: BlockNumber = 7 * DAYS;
 	pub const MinBid: Balance = 100 * QUID;
 	pub MinReceipt: Perquintill = Perquintill::from_rational(1u64, 10_000_000u64);
@@ -1256,7 +1263,27 @@ parameter_types! {
 	pub const ThawThrottle: (Perquintill, BlockNumber) = (Perquintill::from_percent(25), 5);
 	pub storage NisTarget: Perquintill = Perquintill::zero();
 	pub const NisPalletId: PalletId = PalletId(*b"py/nis  ");
-	pub const NisReserveId: [u8; 8] = *b"py/nis  ";
+	pub const NisHoldReason: HoldReason = HoldReason::Nis(HoldReasonNis::NftReceipt);
+}
+
+/// A reason for placing a hold on funds.
+#[derive(
+	Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Encode, Decode, MaxEncodedLen, Debug, TypeInfo,
+)]
+pub enum HoldReason {
+	/// Some reason of the NIS pallet.
+	#[codec(index = 38)]
+	Nis(HoldReasonNis),
+}
+
+/// A reason for the NIS pallet placing a hold on funds.
+#[derive(
+	Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Encode, Decode, MaxEncodedLen, Debug, TypeInfo,
+)]
+pub enum HoldReasonNis {
+	/// The NIS Pallet has reserved it for a non-fungible receipt.
+	#[codec(index = 0)]
+	NftReceipt = 0,
 }
 
 impl pallet_nis::Config for Runtime {
@@ -1268,7 +1295,7 @@ impl pallet_nis::Config for Runtime {
 	type Counterpart = NisCounterpartBalances;
 	type CounterpartAmount = WithMaximumOf<ConstU128<21_000_000_000_000_000_000u128>>;
 	type Deficit = (); // Mint
-	type IgnoredIssuance = IgnoredIssuance;
+	type IgnoredIssuance = ();
 	type Target = NisTarget;
 	type PalletId = NisPalletId;
 	type QueueCount = ConstU32<500>;
@@ -1280,7 +1307,7 @@ impl pallet_nis::Config for Runtime {
 	type IntakePeriod = IntakePeriod;
 	type MaxIntakeWeight = MaxIntakeWeight;
 	type ThawThrottle = ThawThrottle;
-	type ReserveId = NisReserveId;
+	type HoldReason = NisHoldReason;
 }
 
 parameter_types! {

polkadot/runtime/kusama/src/weights/pallet_balances.rs

@@ -45,7 +45,7 @@ use sp_std::marker::PhantomData;
 pub struct WeightInfo<T>(PhantomData<T>);
 impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	// Storage: System Account (r:1 w:1)
-	fn transfer() -> Weight {
+	fn transfer_allow_death() -> Weight {
 		// Minimum execution time: 40_902 nanoseconds.
 		Weight::from_parts(41_638_000 as u64, 0)
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
@@ -59,14 +59,14 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().writes(1 as u64))
 	}
 	// Storage: System Account (r:1 w:1)
-	fn set_balance_creating() -> Weight {
+	fn force_set_balance_creating() -> Weight {
 		// Minimum execution time: 23_901 nanoseconds.
 		Weight::from_parts(24_238_000 as u64, 0)
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
 			.saturating_add(T::DbWeight::get().writes(1 as u64))
 	}
 	// Storage: System Account (r:1 w:1)
-	fn set_balance_killing() -> Weight {
+	fn force_set_balance_killing() -> Weight {
 		// Minimum execution time: 26_402 nanoseconds.
 		Weight::from_parts(27_026_000 as u64, 0)
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
@@ -93,4 +93,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
 			.saturating_add(T::DbWeight::get().writes(1 as u64))
 	}
+	fn upgrade_accounts(_: u32) -> Weight {
+		Weight::from_parts(0, 0)
+	}
 }

polkadot/runtime/kusama/src/weights/pallet_balances_nis_counterpart_balances.rs

@@ -51,7 +51,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
 	/// Storage: NisCounterpartBalances TotalIssuance (r:1 w:1)
 	/// Proof: NisCounterpartBalances TotalIssuance (max_values: Some(1), max_size: Some(16), added: 511, mode: MaxEncodedLen)
-	fn transfer() -> Weight {
+	fn transfer_allow_death() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `219`
 		//  Estimated: `11258`
@@ -79,7 +79,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Proof: NisCounterpartBalances Account (max_values: None, max_size: Some(112), added: 2587, mode: MaxEncodedLen)
 	/// Storage: NisCounterpartBalances TotalIssuance (r:1 w:1)
 	/// Proof: NisCounterpartBalances TotalIssuance (max_values: Some(1), max_size: Some(16), added: 511, mode: MaxEncodedLen)
-	fn set_balance_creating() -> Weight {
+	fn force_set_balance_creating() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `219`
 		//  Estimated: `5078`
@@ -95,7 +95,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
 	/// Storage: NisCounterpartBalances TotalIssuance (r:1 w:1)
 	/// Proof: NisCounterpartBalances TotalIssuance (max_values: Some(1), max_size: Some(16), added: 511, mode: MaxEncodedLen)
-	fn set_balance_killing() -> Weight {
+	fn force_set_balance_killing() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `393`
 		//  Estimated: `8671`
@@ -147,4 +147,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().reads(1))
 			.saturating_add(T::DbWeight::get().writes(1))
 	}
+	fn upgrade_accounts(_: u32) -> Weight {
+		Weight::from_parts(0, 0)
+	}
 }

polkadot/runtime/parachains/src/hrmp/benchmarking.rs

@@ -69,6 +69,7 @@ where
 	<T as frame_system::Config>::RuntimeOrigin: From<crate::Origin>,
 {
 	let config = Configuration::<T>::config();
+	let ed = T::Currency::minimum_balance();
 	let deposit: BalanceOf<T> = config.hrmp_sender_deposit.unique_saturated_into();
 	let capacity = config.hrmp_channel_max_capacity;
 	let message_size = config.hrmp_channel_max_message_size;
@@ -83,10 +84,10 @@ where
 
 	// Make both a parachain if they are already not.
 	if !Paras::<T>::is_parachain(sender) {
-		register_parachain_with_balance::<T>(sender, deposit);
+		register_parachain_with_balance::<T>(sender, deposit + ed);
 	}
 	if !Paras::<T>::is_parachain(recipient) {
-		register_parachain_with_balance::<T>(recipient, deposit);
+		register_parachain_with_balance::<T>(recipient, deposit + ed);
 	}
 
 	assert_ok!(Hrmp::<T>::hrmp_init_open_channel(
@@ -147,9 +148,10 @@ frame_benchmarking::benchmarks! {
 		let recipient_id: ParaId = 2u32.into();
 
 		// make sure para is registered, and has enough balance.
+		let ed = T::Currency::minimum_balance();
 		let deposit: BalanceOf<T> = Configuration::<T>::config().hrmp_sender_deposit.unique_saturated_into();
-		register_parachain_with_balance::<T>(sender_id, deposit);
+		register_parachain_with_balance::<T>(sender_id, deposit + ed);
-		register_parachain_with_balance::<T>(recipient_id, deposit);
+		register_parachain_with_balance::<T>(recipient_id, deposit + ed);
 
 		let capacity = Configuration::<T>::config().hrmp_channel_max_capacity;
 		let message_size = Configuration::<T>::config().hrmp_channel_max_message_size;
@@ -302,12 +304,13 @@ frame_benchmarking::benchmarks! {
 		let recipient_id: ParaId = 2u32.into();
 
 		// make sure para is registered, and has enough balance.
+		let ed = T::Currency::minimum_balance();
 		let sender_deposit: BalanceOf<T> =
 			Configuration::<T>::config().hrmp_sender_deposit.unique_saturated_into();
 		let recipient_deposit: BalanceOf<T> =
 			Configuration::<T>::config().hrmp_recipient_deposit.unique_saturated_into();
-		register_parachain_with_balance::<T>(sender_id, sender_deposit);
+		register_parachain_with_balance::<T>(sender_id, sender_deposit + ed);
-		register_parachain_with_balance::<T>(recipient_id, recipient_deposit);
+		register_parachain_with_balance::<T>(recipient_id, recipient_deposit + ed);
 
 		let capacity = Configuration::<T>::config().hrmp_channel_max_capacity;
 		let message_size = Configuration::<T>::config().hrmp_channel_max_message_size;

polkadot/runtime/parachains/src/mock.rs

@@ -25,7 +25,7 @@ use crate::{
 
 use frame_support::{
 	parameter_types,
-	traits::{GenesisBuild, ValidatorSet, ValidatorSetWithIdentification},
+	traits::{ConstU32, GenesisBuild, ValidatorSet, ValidatorSetWithIdentification},
 	weights::Weight,
 };
 use frame_support_test::TestRandomness;
@@ -113,11 +113,11 @@ impl frame_system::Config for Test {
 	type SystemWeightInfo = ();
 	type SS58Prefix = ();
 	type OnSetCode = ();
-	type MaxConsumers = frame_support::traits::ConstU32<16>;
+	type MaxConsumers = ConstU32<16>;
 }
 
 parameter_types! {
-	pub static ExistentialDeposit: u64 = 0;
+	pub static ExistentialDeposit: u64 = 1;
 }
 
 impl pallet_balances::Config for Test {
@@ -130,6 +130,10 @@ impl pallet_balances::Config for Test {
 	type ExistentialDeposit = ExistentialDeposit;
 	type AccountStore = System;
 	type WeightInfo = ();
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {

polkadot/runtime/polkadot/src/lib.rs

@@ -296,6 +296,10 @@ impl pallet_balances::Config for Runtime {
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
 	type WeightInfo = weights::pallet_balances::WeightInfo<Runtime>;
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {

polkadot/runtime/polkadot/src/weights/pallet_balances.rs

@@ -47,7 +47,7 @@ pub struct WeightInfo<T>(PhantomData<T>);
 impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Storage: System Account (r:1 w:1)
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
-	fn transfer() -> Weight {
+	fn transfer_allow_death() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `3593`
@@ -71,7 +71,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	}
 	/// Storage: System Account (r:1 w:1)
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
-	fn set_balance_creating() -> Weight {
+	fn force_set_balance_creating() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `174`
 		//  Estimated: `3593`
@@ -83,7 +83,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	}
 	/// Storage: System Account (r:1 w:1)
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
-	fn set_balance_killing() -> Weight {
+	fn force_set_balance_killing() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `174`
 		//  Estimated: `3593`
@@ -129,4 +129,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().reads(1))
 			.saturating_add(T::DbWeight::get().writes(1))
 	}
+	fn upgrade_accounts(_: u32) -> Weight {
+		Weight::from_parts(0, 0)
+	}
 }

polkadot/runtime/rococo/src/lib.rs

@@ -34,6 +34,7 @@ use runtime_common::{
 	paras_registrar, paras_sudo_wrapper, prod_or_fast, slots, BlockHashCount, BlockLength,
 	SlowAdjustingFeeUpdate,
 };
+use scale_info::TypeInfo;
 use sp_std::{cmp::Ordering, collections::btree_map::BTreeMap, prelude::*};
 
 use runtime_parachains::{
@@ -281,6 +282,10 @@ impl pallet_balances::Config for Runtime {
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
 	type WeightInfo = weights::pallet_balances::WeightInfo<Runtime>;
+	type FreezeIdentifier = ();
+	type MaxFreezes = ConstU32<1>;
+	type HoldIdentifier = HoldReason;
+	type MaxHolds = ConstU32<1>;
 }
 
 parameter_types! {
@@ -1169,7 +1174,6 @@ impl pallet_balances::Config<NisCounterpartInstance> for Runtime {
 	type ExistentialDeposit = ConstU128<10_000_000_000>; // One RTC cent
 	type AccountStore = StorageMapShim<
 		pallet_balances::Account<Runtime, NisCounterpartInstance>,
-		frame_system::Provider<Runtime>,
 		AccountId,
 		pallet_balances::AccountData<u128>,
 	>;
@@ -1177,10 +1181,13 @@ impl pallet_balances::Config<NisCounterpartInstance> for Runtime {
 	type MaxReserves = ConstU32<4>;
 	type ReserveIdentifier = [u8; 8];
 	type WeightInfo = weights::pallet_balances_nis_counterpart_balances::WeightInfo<Runtime>;
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {
-	pub IgnoredIssuance: Balance = Treasury::pot();
 	pub const NisBasePeriod: BlockNumber = 30 * DAYS;
 	pub const MinBid: Balance = 100 * UNITS;
 	pub MinReceipt: Perquintill = Perquintill::from_rational(1u64, 10_000_000u64);
@@ -1189,7 +1196,27 @@ parameter_types! {
 	pub const ThawThrottle: (Perquintill, BlockNumber) = (Perquintill::from_percent(25), 5);
 	pub storage NisTarget: Perquintill = Perquintill::zero();
 	pub const NisPalletId: PalletId = PalletId(*b"py/nis  ");
-	pub const NisReserveId: [u8; 8] = *b"py/nis  ";
+	pub const NisHoldReason: HoldReason = HoldReason::Nis(HoldReasonNis::NftReceipt);
+}
+
+/// A reason for placing a hold on funds.
+#[derive(
+	Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Encode, Decode, MaxEncodedLen, Debug, TypeInfo,
+)]
+pub enum HoldReason {
+	/// Some reason of the NIS pallet.
+	#[codec(index = 38)]
+	Nis(HoldReasonNis),
+}
+
+/// A reason for the NIS pallet placing a hold on funds.
+#[derive(
+	Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Encode, Decode, MaxEncodedLen, Debug, TypeInfo,
+)]
+pub enum HoldReasonNis {
+	/// The NIS Pallet has reserved it for a non-fungible receipt.
+	#[codec(index = 0)]
+	NftReceipt = 0,
 }
 
 impl pallet_nis::Config for Runtime {
@@ -1201,7 +1228,7 @@ impl pallet_nis::Config for Runtime {
 	type Counterpart = NisCounterpartBalances;
 	type CounterpartAmount = WithMaximumOf<ConstU128<21_000_000_000_000_000_000u128>>;
 	type Deficit = (); // Mint
-	type IgnoredIssuance = IgnoredIssuance;
+	type IgnoredIssuance = ();
 	type Target = NisTarget;
 	type PalletId = NisPalletId;
 	type QueueCount = ConstU32<300>;
@@ -1213,7 +1240,7 @@ impl pallet_nis::Config for Runtime {
 	type IntakePeriod = IntakePeriod;
 	type MaxIntakeWeight = MaxIntakeWeight;
 	type ThawThrottle = ThawThrottle;
-	type ReserveId = NisReserveId;
+	type HoldReason = NisHoldReason;
 }
 
 parameter_types! {

polkadot/runtime/rococo/src/weights/pallet_balances.rs

@@ -45,7 +45,7 @@ use sp_std::marker::PhantomData;
 pub struct WeightInfo<T>(PhantomData<T>);
 impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	// Storage: System Account (r:1 w:1)
-	fn transfer() -> Weight {
+	fn transfer_allow_death() -> Weight {
 		// Minimum execution time: 40_106 nanoseconds.
 		Weight::from_parts(40_750_000 as u64, 0)
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
@@ -59,14 +59,14 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().writes(1 as u64))
 	}
 	// Storage: System Account (r:1 w:1)
-	fn set_balance_creating() -> Weight {
+	fn force_set_balance_creating() -> Weight {
 		// Minimum execution time: 23_902 nanoseconds.
 		Weight::from_parts(24_338_000 as u64, 0)
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
 			.saturating_add(T::DbWeight::get().writes(1 as u64))
 	}
 	// Storage: System Account (r:1 w:1)
-	fn set_balance_killing() -> Weight {
+	fn force_set_balance_killing() -> Weight {
 		// Minimum execution time: 26_492 nanoseconds.
 		Weight::from_parts(26_866_000 as u64, 0)
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
@@ -93,4 +93,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().reads(1 as u64))
 			.saturating_add(T::DbWeight::get().writes(1 as u64))
 	}
+	fn upgrade_accounts(_: u32) -> Weight {
+		Weight::from_parts(0, 0)
+	}
 }

polkadot/runtime/rococo/src/weights/pallet_balances_nis_counterpart_balances.rs

@@ -51,7 +51,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
 	/// Storage: NisCounterpartBalances TotalIssuance (r:1 w:1)
 	/// Proof: NisCounterpartBalances TotalIssuance (max_values: Some(1), max_size: Some(16), added: 511, mode: MaxEncodedLen)
-	fn transfer() -> Weight {
+	fn transfer_allow_death() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `219`
 		//  Estimated: `11258`
@@ -79,7 +79,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Proof: NisCounterpartBalances Account (max_values: None, max_size: Some(112), added: 2587, mode: MaxEncodedLen)
 	/// Storage: NisCounterpartBalances TotalIssuance (r:1 w:1)
 	/// Proof: NisCounterpartBalances TotalIssuance (max_values: Some(1), max_size: Some(16), added: 511, mode: MaxEncodedLen)
-	fn set_balance_creating() -> Weight {
+	fn force_set_balance_creating() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `219`
 		//  Estimated: `5078`
@@ -95,7 +95,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
 	/// Storage: NisCounterpartBalances TotalIssuance (r:1 w:1)
 	/// Proof: NisCounterpartBalances TotalIssuance (max_values: Some(1), max_size: Some(16), added: 511, mode: MaxEncodedLen)
-	fn set_balance_killing() -> Weight {
+	fn force_set_balance_killing() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `393`
 		//  Estimated: `8671`
@@ -147,4 +147,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().reads(1))
 			.saturating_add(T::DbWeight::get().writes(1))
 	}
+	fn upgrade_accounts(_: u32) -> Weight {
+		Weight::from_parts(0, 0)
+	}
 }

polkadot/runtime/test-runtime/src/lib.rs

@@ -56,7 +56,7 @@ use runtime_common::{
 	claims, impl_runtime_weights, paras_sudo_wrapper, BlockHashCount, BlockLength,
 	SlowAdjustingFeeUpdate,
 };
-use sp_core::OpaqueMetadata;
+use sp_core::{ConstU32, OpaqueMetadata};
 use sp_mmr_primitives as mmr;
 use sp_runtime::{
 	create_runtime_str,
@@ -217,6 +217,10 @@ impl pallet_balances::Config for Runtime {
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
 	type WeightInfo = ();
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {

polkadot/runtime/westend/src/lib.rs

@@ -258,6 +258,10 @@ impl pallet_balances::Config for Runtime {
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
 	type WeightInfo = weights::pallet_balances::WeightInfo<Runtime>;
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {

polkadot/runtime/westend/src/weights/pallet_balances.rs

@@ -47,7 +47,7 @@ pub struct WeightInfo<T>(PhantomData<T>);
 impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	/// Storage: System Account (r:1 w:1)
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
-	fn transfer() -> Weight {
+	fn transfer_allow_death() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `3593`
@@ -71,7 +71,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	}
 	/// Storage: System Account (r:1 w:1)
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
-	fn set_balance_creating() -> Weight {
+	fn force_set_balance_creating() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `174`
 		//  Estimated: `3593`
@@ -83,7 +83,7 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	}
 	/// Storage: System Account (r:1 w:1)
 	/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
-	fn set_balance_killing() -> Weight {
+	fn force_set_balance_killing() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `174`
 		//  Estimated: `3593`
@@ -129,4 +129,8 @@ impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 			.saturating_add(T::DbWeight::get().reads(1))
 			.saturating_add(T::DbWeight::get().writes(1))
 	}
+	fn upgrade_accounts(_: u32) -> Weight {
+		Weight::from_parts(0, 0)
+	}
+
 }

polkadot/xcm/pallet-xcm-benchmarks/src/fungible/mock.rs

@@ -20,7 +20,7 @@ use crate::{fungible as xcm_balances_benchmark, mock::*};
 use frame_benchmarking::BenchmarkError;
 use frame_support::{
 	parameter_types,
-	traits::{Everything, Nothing},
+	traits::{ConstU32, Everything, Nothing},
 	weights::Weight,
 };
 use sp_core::H256;
@@ -77,7 +77,7 @@ impl frame_system::Config for Test {
 	type SystemWeightInfo = ();
 	type SS58Prefix = ();
 	type OnSetCode = ();
-	type MaxConsumers = frame_support::traits::ConstU32<16>;
+	type MaxConsumers = ConstU32<16>;
 }
 
 parameter_types! {
@@ -94,6 +94,10 @@ impl pallet_balances::Config for Test {
 	type ExistentialDeposit = ExistentialDeposit;
 	type AccountStore = System;
 	type WeightInfo = ();
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {

polkadot/xcm/pallet-xcm/src/mock.rs

@@ -17,7 +17,7 @@
 use codec::Encode;
 use frame_support::{
 	construct_runtime, parameter_types,
-	traits::{Everything, Nothing},
+	traits::{ConstU32, Everything, Nothing},
 	weights::Weight,
 };
 use polkadot_parachain::primitives::Id as ParaId;
@@ -242,6 +242,10 @@ impl pallet_balances::Config for Test {
 	type WeightInfo = ();
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {

polkadot/xcm/xcm-builder/src/fungibles_adapter.rs

@@ -16,7 +16,12 @@
 
 //! Adapters to work with `frame_support::traits::tokens::fungibles` through XCM.
 
-use frame_support::traits::{tokens::fungibles, Contains, Get};
+use frame_support::traits::{
+	tokens::{
+		fungibles, Fortitude::Polite, Precision::Exact, Preservation::Preserve, Provenance::Minted,
+	},
+	Contains, Get,
+};
 use sp_std::{marker::PhantomData, prelude::*, result};
 use xcm::latest::prelude::*;
 use xcm_executor::traits::{Convert, Error as MatchError, MatchesFungibles, TransactAsset};
@@ -26,7 +31,7 @@ pub struct FungiblesTransferAdapter<Assets, Matcher, AccountIdConverter, Account
 	PhantomData<(Assets, Matcher, AccountIdConverter, AccountId)>,
 );
 impl<
-		Assets: fungibles::Transfer<AccountId>,
+		Assets: fungibles::Mutate<AccountId>,
 		Matcher: MatchesFungibles<Assets::AssetId, Assets::Balance>,
 		AccountIdConverter: Convert<MultiLocation, AccountId>,
 		AccountId: Clone, // can't get away without it since Currency is generic over it.
@@ -49,7 +54,7 @@ impl<
 			.map_err(|()| MatchError::AccountIdConversionFailed)?;
 		let dest = AccountIdConverter::convert_ref(to)
 			.map_err(|()| MatchError::AccountIdConversionFailed)?;
-		Assets::transfer(asset_id, &source, &dest, amount, true)
+		Assets::transfer(asset_id, &source, &dest, amount, Preserve)
 			.map_err(|e| XcmError::FailedToTransactAsset(e.into()))?;
 		Ok(what.clone().into())
 	}
@@ -153,14 +158,14 @@ impl<
 {
 	fn can_accrue_checked(asset_id: Assets::AssetId, amount: Assets::Balance) -> XcmResult {
 		let checking_account = CheckingAccount::get();
-		Assets::can_deposit(asset_id, &checking_account, amount, true)
+		Assets::can_deposit(asset_id, &checking_account, amount, Minted)
 			.into_result()
 			.map_err(|_| XcmError::NotDepositable)
 	}
 	fn can_reduce_checked(asset_id: Assets::AssetId, amount: Assets::Balance) -> XcmResult {
 		let checking_account = CheckingAccount::get();
 		Assets::can_withdraw(asset_id, &checking_account, amount)
-			.into_result()
+			.into_result(false)
 			.map_err(|_| XcmError::NotWithdrawable)
 			.map(|_| ())
 	}
@@ -171,7 +176,7 @@ impl<
 	}
 	fn reduce_checked(asset_id: Assets::AssetId, amount: Assets::Balance) {
 		let checking_account = CheckingAccount::get();
-		let ok = Assets::burn_from(asset_id, &checking_account, amount).is_ok();
+		let ok = Assets::burn_from(asset_id, &checking_account, amount, Exact, Polite).is_ok();
 		debug_assert!(ok, "`can_reduce_checked` must have returned `true` immediately prior; qed");
 	}
 }
@@ -280,7 +285,8 @@ impl<
 		let who = AccountIdConverter::convert_ref(who)
 			.map_err(|()| MatchError::AccountIdConversionFailed)?;
 		Assets::mint_into(asset_id, &who, amount)
-			.map_err(|e| XcmError::FailedToTransactAsset(e.into()))
+			.map_err(|e| XcmError::FailedToTransactAsset(e.into()))?;
+		Ok(())
 	}
 
 	fn withdraw_asset(
@@ -297,7 +303,7 @@ impl<
 		let (asset_id, amount) = Matcher::matches_fungibles(what)?;
 		let who = AccountIdConverter::convert_ref(who)
 			.map_err(|()| MatchError::AccountIdConversionFailed)?;
-		Assets::burn_from(asset_id, &who, amount)
+		Assets::burn_from(asset_id, &who, amount, Exact, Polite)
 			.map_err(|e| XcmError::FailedToTransactAsset(e.into()))?;
 		Ok(what.clone().into())
 	}
@@ -312,7 +318,7 @@ pub struct FungiblesAdapter<
 	CheckingAccount,
 >(PhantomData<(Assets, Matcher, AccountIdConverter, AccountId, CheckAsset, CheckingAccount)>);
 impl<
-		Assets: fungibles::Mutate<AccountId> + fungibles::Transfer<AccountId>,
+		Assets: fungibles::Mutate<AccountId>,
 		Matcher: MatchesFungibles<Assets::AssetId, Assets::Balance>,
 		AccountIdConverter: Convert<MultiLocation, AccountId>,
 		AccountId: Clone, // can't get away without it since Currency is generic over it.

polkadot/xcm/xcm-builder/tests/mock/mod.rs

@@ -16,7 +16,7 @@
 
 use frame_support::{
 	construct_runtime, parameter_types,
-	traits::{Everything, Nothing},
+	traits::{ConstU32, Everything, Nothing},
 	weights::Weight,
 };
 use parity_scale_codec::Encode;
@@ -116,6 +116,10 @@ impl pallet_balances::Config for Runtime {
 	type WeightInfo = ();
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 impl shared::Config for Runtime {}

polkadot/xcm/xcm-simulator/example/src/parachain.rs

@@ -22,7 +22,7 @@ use frame_support::{
 	traits::{EnsureOrigin, EnsureOriginWithArg, Everything, EverythingBut, Nothing},
 	weights::{constants::WEIGHT_REF_TIME_PER_SECOND, Weight},
 };
-use sp_core::H256;
+use sp_core::{ConstU32, H256};
 use sp_runtime::{
 	testing::Header,
 	traits::{Hash, IdentityLookup},
@@ -85,7 +85,7 @@ impl frame_system::Config for Runtime {
 	type SystemWeightInfo = ();
 	type SS58Prefix = ();
 	type OnSetCode = ();
-	type MaxConsumers = frame_support::traits::ConstU32<16>;
+	type MaxConsumers = ConstU32<16>;
 }
 
 parameter_types! {
@@ -104,6 +104,10 @@ impl pallet_balances::Config for Runtime {
 	type WeightInfo = ();
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 #[cfg(feature = "runtime-benchmarks")]
@@ -130,9 +134,9 @@ impl pallet_uniques::Config for Runtime {
 	type MetadataDepositBase = frame_support::traits::ConstU128<1_000>;
 	type AttributeDepositBase = frame_support::traits::ConstU128<1_000>;
 	type DepositPerByte = frame_support::traits::ConstU128<1>;
-	type StringLimit = frame_support::traits::ConstU32<64>;
+	type StringLimit = ConstU32<64>;
-	type KeyLimit = frame_support::traits::ConstU32<64>;
+	type KeyLimit = ConstU32<64>;
-	type ValueLimit = frame_support::traits::ConstU32<128>;
+	type ValueLimit = ConstU32<128>;
 	type Locker = ();
 	type WeightInfo = ();
 	#[cfg(feature = "runtime-benchmarks")]
@@ -416,7 +420,7 @@ impl pallet_xcm::Config for Runtime {
 	type CurrencyMatcher = ();
 	type TrustedLockers = ();
 	type SovereignAccountOf = LocationToAccountId;
-	type MaxLockers = frame_support::traits::ConstU32<8>;
+	type MaxLockers = ConstU32<8>;
 	type WeightInfo = pallet_xcm::TestWeightInfo;
 	#[cfg(feature = "runtime-benchmarks")]
 	type ReachableDest = ReachableDest;

polkadot/xcm/xcm-simulator/example/src/relay_chain.rs

@@ -21,7 +21,7 @@ use frame_support::{
 	traits::{AsEnsureOriginWithArg, Everything, Nothing},
 	weights::Weight,
 };
-use sp_core::H256;
+use sp_core::{ConstU32, H256};
 use sp_runtime::{testing::Header, traits::IdentityLookup, AccountId32};
 
 use polkadot_parachain::primitives::Id as ParaId;
@@ -67,7 +67,7 @@ impl frame_system::Config for Runtime {
 	type SystemWeightInfo = ();
 	type SS58Prefix = ();
 	type OnSetCode = ();
-	type MaxConsumers = frame_support::traits::ConstU32<16>;
+	type MaxConsumers = ConstU32<16>;
 }
 
 parameter_types! {
@@ -86,6 +86,10 @@ impl pallet_balances::Config for Runtime {
 	type WeightInfo = ();
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 impl pallet_uniques::Config for Runtime {
@@ -100,9 +104,9 @@ impl pallet_uniques::Config for Runtime {
 	type MetadataDepositBase = frame_support::traits::ConstU128<1_000>;
 	type AttributeDepositBase = frame_support::traits::ConstU128<1_000>;
 	type DepositPerByte = frame_support::traits::ConstU128<1>;
-	type StringLimit = frame_support::traits::ConstU32<64>;
+	type StringLimit = ConstU32<64>;
-	type KeyLimit = frame_support::traits::ConstU32<64>;
+	type KeyLimit = ConstU32<64>;
-	type ValueLimit = frame_support::traits::ConstU32<128>;
+	type ValueLimit = ConstU32<128>;
 	type Locker = ();
 	type WeightInfo = ();
 	#[cfg(feature = "runtime-benchmarks")]
@@ -213,7 +217,7 @@ impl pallet_xcm::Config for Runtime {
 	type CurrencyMatcher = IsConcrete<TokenLocation>;
 	type TrustedLockers = ();
 	type SovereignAccountOf = LocationToAccountId;
-	type MaxLockers = frame_support::traits::ConstU32<8>;
+	type MaxLockers = ConstU32<8>;
 	type WeightInfo = pallet_xcm::TestWeightInfo;
 	#[cfg(feature = "runtime-benchmarks")]
 	type ReachableDest = ReachableDest;

polkadot/xcm/xcm-simulator/fuzzer/src/parachain.rs

@@ -22,7 +22,7 @@ use frame_support::{
 	traits::{Everything, Nothing},
 	weights::{constants::WEIGHT_REF_TIME_PER_SECOND, Weight},
 };
-use sp_core::H256;
+use sp_core::{ConstU32, H256};
 use sp_runtime::{
 	testing::Header,
 	traits::{Hash, IdentityLookup},
@@ -94,6 +94,10 @@ impl pallet_balances::Config for Runtime {
 	type WeightInfo = ();
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 parameter_types! {

polkadot/xcm/xcm-simulator/fuzzer/src/relay_chain.rs

@@ -21,7 +21,7 @@ use frame_support::{
 	traits::{Everything, Nothing},
 	weights::Weight,
 };
-use sp_core::H256;
+use sp_core::{ConstU32, H256};
 use sp_runtime::{testing::Header, traits::IdentityLookup, AccountId32};
 
 use polkadot_parachain::primitives::Id as ParaId;
@@ -66,7 +66,7 @@ impl frame_system::Config for Runtime {
 	type SystemWeightInfo = ();
 	type SS58Prefix = ();
 	type OnSetCode = ();
-	type MaxConsumers = frame_support::traits::ConstU32<16>;
+	type MaxConsumers = ConstU32<16>;
 }
 
 parameter_types! {
@@ -85,6 +85,10 @@ impl pallet_balances::Config for Runtime {
 	type WeightInfo = ();
 	type MaxReserves = MaxReserves;
 	type ReserveIdentifier = [u8; 8];
+	type HoldIdentifier = ();
+	type FreezeIdentifier = ();
+	type MaxHolds = ConstU32<0>;
+	type MaxFreezes = ConstU32<0>;
 }
 
 impl shared::Config for Runtime {}
@@ -177,7 +181,7 @@ impl pallet_xcm::Config for Runtime {
 	type CurrencyMatcher = ();
 	type TrustedLockers = ();
 	type SovereignAccountOf = SovereignAccountOf;
-	type MaxLockers = frame_support::traits::ConstU32<8>;
+	type MaxLockers = ConstU32<8>;
 	type WeightInfo = pallet_xcm::TestWeightInfo;
 	#[cfg(feature = "runtime-benchmarks")]
 	type ReachableDest = ReachableDest;