FRAME: Create TransactionExtension as a replacement for SignedExtension (#2280)

Closes #2160 First part of [Extrinsic Horizon](https://github.com/paritytech/polkadot-sdk/issues/2415) Introduces a new trait `TransactionExtension` to replace `SignedExtension`. Introduce the idea of transactions which obey the runtime's extensions and have according Extension data (né Extra data) yet do not have hard-coded signatures. Deprecate the terminology of "Unsigned" when used for transactions/extrinsics owing to there now being "proper" unsigned transactions which obey the extension framework and "old-style" unsigned which do not. Instead we have __*General*__ for the former and __*Bare*__ for the latter. (Ultimately, the latter will be phased out as a type of transaction, and Bare will only be used for Inherents.) Types of extrinsic are now therefore: - Bare (no hardcoded signature, no Extra data; used to be known as "Unsigned") - Bare transactions (deprecated): Gossiped, validated with `ValidateUnsigned` (deprecated) and the `_bare_compat` bits of `TransactionExtension` (deprecated). - Inherents: Not gossiped, validated with `ProvideInherent`. - Extended (Extra data): Gossiped, validated via `TransactionExtension`. - Signed transactions (with a hardcoded signature). - General transactions (without a hardcoded signature). `TransactionExtension` differs from `SignedExtension` because: - A signature on the underlying transaction may validly not be present. - It may alter the origin during validation. - `pre_dispatch` is renamed to `prepare` and need not contain the checks present in `validate`. - `validate` and `prepare` is passed an `Origin` rather than a `AccountId`. - `validate` may pass arbitrary information into `prepare` via a new user-specifiable type `Val`. - `AdditionalSigned`/`additional_signed` is renamed to `Implicit`/`implicit`. It is encoded *for the entire transaction* and passed in to each extension as a new argument to `validate`. This facilitates the ability of extensions to acts as underlying crypto. There is a new `DispatchTransaction` trait which contains only default function impls and is impl'ed for any `TransactionExtension` impler. It provides several utility functions which reduce some of the tedium from using `TransactionExtension` (indeed, none of its regular functions should now need to be called directly). Three transaction version discriminator ("versions") are now permissible: - 0b000000100: Bare (used to be called "Unsigned"): contains Signature or Extra (extension data). After bare transactions are no longer supported, this will strictly identify an Inherents only. - 0b100000100: Old-school "Signed" Transaction: contains Signature and Extra (extension data). - 0b010000100: New-school "General" Transaction: contains Extra (extension data), but no Signature. For the New-school General Transaction, it becomes trivial for authors to publish extensions to the mechanism for authorizing an Origin, e.g. through new kinds of key-signing schemes, ZK proofs, pallet state, mutations over pre-authenticated origins or any combination of the above. ## Code Migration ### NOW: Getting it to build Wrap your `SignedExtension`s in `AsTransactionExtension`. This should be accompanied by renaming your aggregate type in line with the new terminology. E.g. Before: ```rust /// The SignedExtension to the basic transaction logic. pub type SignedExtra = ( /* snip */ MySpecialSignedExtension, ); /// Unchecked extrinsic type as expected by this runtime. pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, SignedExtra>; ``` After: ```rust /// The extension to the basic transaction logic. pub type TxExtension = ( /* snip */ AsTransactionExtension<MySpecialSignedExtension>, ); /// Unchecked extrinsic type as expected by this runtime. pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, TxExtension>; ``` You'll also need to alter any transaction building logic to add a `.into()` to make the conversion happen. E.g. Before: ```rust fn construct_extrinsic( /* snip */ ) -> UncheckedExtrinsic { let extra: SignedExtra = ( /* snip */ MySpecialSignedExtension::new(/* snip */), ); let payload = SignedPayload::new(call.clone(), extra.clone()).unwrap(); let signature = payload.using_encoded(|e| sender.sign(e)); UncheckedExtrinsic::new_signed( /* snip */ Signature::Sr25519(signature), extra, ) } ``` After: ```rust fn construct_extrinsic( /* snip */ ) -> UncheckedExtrinsic { let tx_ext: TxExtension = ( /* snip */ MySpecialSignedExtension::new(/* snip */).into(), ); let payload = SignedPayload::new(call.clone(), tx_ext.clone()).unwrap(); let signature = payload.using_encoded(|e| sender.sign(e)); UncheckedExtrinsic::new_signed( /* snip */ Signature::Sr25519(signature), tx_ext, ) } ``` ### SOON: Migrating to `TransactionExtension` Most `SignedExtension`s can be trivially converted to become a `TransactionExtension`. There are a few things to know. - Instead of a single trait like `SignedExtension`, you should now implement two traits individually: `TransactionExtensionBase` and `TransactionExtension`. - Weights are now a thing and must be provided via the new function `fn weight`. #### `TransactionExtensionBase` This trait takes care of anything which is not dependent on types specific to your runtime, most notably `Call`. - `AdditionalSigned`/`additional_signed` is renamed to `Implicit`/`implicit`. - Weight must be returned by implementing the `weight` function. If your extension is associated with a pallet, you'll probably want to do this via the pallet's existing benchmarking infrastructure. #### `TransactionExtension` Generally: - `pre_dispatch` is now `prepare` and you *should not reexecute the `validate` functionality in there*! - You don't get an account ID any more; you get an origin instead. If you need to presume an account ID, then you can use the trait function `AsSystemOriginSigner::as_system_origin_signer`. - You get an additional ticket, similar to `Pre`, called `Val`. This defines data which is passed from `validate` into `prepare`. This is important since you should not be duplicating logic from `validate` to `prepare`, you need a way of passing your working from the former into the latter. This is it. - This trait takes two type parameters: `Call` and `Context`. `Call` is the runtime call type which used to be an associated type; you can just move it to become a type parameter for your trait impl. `Context` is not currently used and you can safely implement over it as an unbounded type. - There's no `AccountId` associated type any more. Just remove it. Regarding `validate`: - You get three new parameters in `validate`; all can be ignored when migrating from `SignedExtension`. - `validate` returns a tuple on success; the second item in the tuple is the new ticket type `Self::Val` which gets passed in to `prepare`. If you use any information extracted during `validate` (off-chain and on-chain, non-mutating) in `prepare` (on-chain, mutating) then you can pass it through with this. For the tuple's last item, just return the `origin` argument. Regarding `prepare`: - This is renamed from `pre_dispatch`, but there is one change: - FUNCTIONALITY TO VALIDATE THE TRANSACTION NEED NOT BE DUPLICATED FROM `validate`!! - (This is different to `SignedExtension` which was required to run the same checks in `pre_dispatch` as in `validate`.) Regarding `post_dispatch`: - Since there are no unsigned transactions handled by `TransactionExtension`, `Pre` is always defined, so the first parameter is `Self::Pre` rather than `Option<Self::Pre>`. If you make use of `SignedExtension::validate_unsigned` or `SignedExtension::pre_dispatch_unsigned`, then: - Just use the regular versions of these functions instead. - Have your logic execute in the case that the `origin` is `None`. - Ensure your transaction creation logic creates a General Transaction rather than a Bare Transaction; this means having to include all `TransactionExtension`s' data. - `ValidateUnsigned` can still be used (for now) if you need to be able to construct transactions which contain none of the extension data, however these will be phased out in stage 2 of the Transactions Horizon, so you should consider moving to an extension-centric design. ## TODO - [x] Introduce `CheckSignature` impl of `TransactionExtension` to ensure it's possible to have crypto be done wholly in a `TransactionExtension`. - [x] Deprecate `SignedExtension` and move all uses in codebase to `TransactionExtension`. - [x] `ChargeTransactionPayment` - [x] `DummyExtension` - [x] `ChargeAssetTxPayment` (asset-tx-payment) - [x] `ChargeAssetTxPayment` (asset-conversion-tx-payment) - [x] `CheckWeight` - [x] `CheckTxVersion` - [x] `CheckSpecVersion` - [x] `CheckNonce` - [x] `CheckNonZeroSender` - [x] `CheckMortality` - [x] `CheckGenesis` - [x] `CheckOnlySudoAccount` - [x] `WatchDummy` - [x] `PrevalidateAttests` - [x] `GenericSignedExtension` - [x] `SignedExtension` (chain-polkadot-bulletin) - [x] `RefundSignedExtensionAdapter` - [x] Implement `fn weight` across the board. - [ ] Go through all pre-existing extensions which assume an account signer and explicitly handle the possibility of another kind of origin. - [x] `CheckNonce` should probably succeed in the case of a non-account origin. - [x] `CheckNonZeroSender` should succeed in the case of a non-account origin. - [x] `ChargeTransactionPayment` and family should fail in the case of a non-account origin. - [ ] - [x] Fix any broken tests. --------- Signed-off-by: georgepisaltu <george.pisaltu@parity.io> Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> Signed-off-by: dependabot[bot] <support@github.com> Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io> Signed-off-by: Andrei Sandu <andrei-mihail@parity.io> Co-authored-by: Nikhil Gupta <17176722+gupnik@users.noreply.github.com> Co-authored-by: georgepisaltu <52418509+georgepisaltu@users.noreply.github.com> Co-authored-by: Chevdor <chevdor@users.noreply.github.com> Co-authored-by: Bastian Köcher <git@kchr.de> Co-authored-by: Maciej <maciej.zyszkiewicz@parity.io> Co-authored-by: Javier Viola <javier@parity.io> Co-authored-by: Marcin S. <marcin@realemail.net> Co-authored-by: Tsvetomir Dimitrov <tsvetomir@parity.io> Co-authored-by: Javier Bullrich <javier@bullrich.dev> Co-authored-by: Koute <koute@users.noreply.github.com> Co-authored-by: Adrian Catangiu <adrian@parity.io> Co-authored-by: Vladimir Istyufeev <vladimir@parity.io> Co-authored-by: Ross 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2026-04-26 09:57:56 +00:00 · 2024-03-04 20:12:43 +01:00
parent b0741d4f78
commit fd5f9292f5
349 changed files with 25581 additions and 17082 deletions
@@ -19,7 +19,8 @@ use crate::{pallet_prelude::BlockNumberFor, Config, Pallet};
 use codec::{Decode, Encode};
 use scale_info::TypeInfo;
 use sp_runtime::{
-	traits::{DispatchInfoOf, SignedExtension, Zero},
+	impl_tx_ext_default,
+	traits::{TransactionExtension, TransactionExtensionBase, Zero},
 	transaction_validity::TransactionValidityError,
 };

@@ -46,30 +47,26 @@ impl<T: Config + Send + Sync> sp_std::fmt::Debug for CheckGenesis<T> {
 }

 impl<T: Config + Send + Sync> CheckGenesis<T> {
-	/// Creates new `SignedExtension` to check genesis hash.
+	/// Creates new `TransactionExtension` to check genesis hash.
 	pub fn new() -> Self {
 		Self(sp_std::marker::PhantomData)
 	}
 }

-impl<T: Config + Send + Sync> SignedExtension for CheckGenesis<T> {
-	type AccountId = T::AccountId;
-	type Call = <T as Config>::RuntimeCall;
-	type AdditionalSigned = T::Hash;
-	type Pre = ();
+impl<T: Config + Send + Sync> TransactionExtensionBase for CheckGenesis<T> {
 	const IDENTIFIER: &'static str = "CheckGenesis";
-
-	fn additional_signed(&self) -> Result<Self::AdditionalSigned, TransactionValidityError> {
+	type Implicit = T::Hash;
+	fn implicit(&self) -> Result<Self::Implicit, TransactionValidityError> {
 		Ok(<Pallet<T>>::block_hash(BlockNumberFor::<T>::zero()))
 	}
-
-	fn pre_dispatch(
-		self,
-		who: &Self::AccountId,
-		call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> Result<Self::Pre, TransactionValidityError> {
-		self.validate(who, call, info, len).map(|_| ())
+	fn weight(&self) -> sp_weights::Weight {
+		<T::ExtensionsWeightInfo as super::WeightInfo>::check_genesis()
 	}
 }
+impl<T: Config + Send + Sync, Context> TransactionExtension<T::RuntimeCall, Context>
+	for CheckGenesis<T>
+{
+	type Val = ();
+	type Pre = ();
+	impl_tx_ext_default!(T::RuntimeCall; Context; validate prepare);
+}
@@ -20,10 +20,12 @@ use codec::{Decode, Encode};
 use scale_info::TypeInfo;
 use sp_runtime::{
 	generic::Era,
-	traits::{DispatchInfoOf, SaturatedConversion, SignedExtension},
-	transaction_validity::{
-		InvalidTransaction, TransactionValidity, TransactionValidityError, ValidTransaction,
+	impl_tx_ext_default,
+	traits::{
+		DispatchInfoOf, SaturatedConversion, TransactionExtension, TransactionExtensionBase,
+		ValidateResult,
 	},
+	transaction_validity::{InvalidTransaction, TransactionValidityError, ValidTransaction},
 };

 /// Check for transaction mortality.
@@ -54,29 +56,11 @@ impl<T: Config + Send + Sync> sp_std::fmt::Debug for CheckMortality<T> {
 	}
 }

-impl<T: Config + Send + Sync> SignedExtension for CheckMortality<T> {
-	type AccountId = T::AccountId;
-	type Call = T::RuntimeCall;
-	type AdditionalSigned = T::Hash;
-	type Pre = ();
+impl<T: Config + Send + Sync> TransactionExtensionBase for CheckMortality<T> {
 	const IDENTIFIER: &'static str = "CheckMortality";
+	type Implicit = T::Hash;

-	fn validate(
-		&self,
-		_who: &Self::AccountId,
-		_call: &Self::Call,
-		_info: &DispatchInfoOf<Self::Call>,
-		_len: usize,
-	) -> TransactionValidity {
-		let current_u64 = <Pallet<T>>::block_number().saturated_into::<u64>();
-		let valid_till = self.0.death(current_u64);
-		Ok(ValidTransaction {
-			longevity: valid_till.saturating_sub(current_u64),
-			..Default::default()
-		})
-	}
-
-	fn additional_signed(&self) -> Result<Self::AdditionalSigned, TransactionValidityError> {
+	fn implicit(&self) -> Result<Self::Implicit, TransactionValidityError> {
 		let current_u64 = <Pallet<T>>::block_number().saturated_into::<u64>();
 		let n = self.0.birth(current_u64).saturated_into::<BlockNumberFor<T>>();
 		if !<BlockHash<T>>::contains_key(n) {
@@ -85,17 +69,39 @@ impl<T: Config + Send + Sync> SignedExtension for CheckMortality<T> {
 			Ok(<Pallet<T>>::block_hash(n))
 		}
 	}
-
-	fn pre_dispatch(
-		self,
-		who: &Self::AccountId,
-		call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> Result<Self::Pre, TransactionValidityError> {
-		self.validate(who, call, info, len).map(|_| ())
+	fn weight(&self) -> sp_weights::Weight {
+		<T::ExtensionsWeightInfo as super::WeightInfo>::check_mortality()
 	}
 }
+impl<T: Config + Send + Sync, Context> TransactionExtension<T::RuntimeCall, Context>
+	for CheckMortality<T>
+{
+	type Pre = ();
+	type Val = ();
+
+	fn validate(
+		&self,
+		origin: <T as Config>::RuntimeOrigin,
+		_call: &T::RuntimeCall,
+		_info: &DispatchInfoOf<T::RuntimeCall>,
+		_len: usize,
+		_context: &mut Context,
+		_self_implicit: Self::Implicit,
+		_inherited_implication: &impl Encode,
+	) -> ValidateResult<Self::Val, T::RuntimeCall> {
+		let current_u64 = <Pallet<T>>::block_number().saturated_into::<u64>();
+		let valid_till = self.0.death(current_u64);
+		Ok((
+			ValidTransaction {
+				longevity: valid_till.saturating_sub(current_u64),
+				..Default::default()
+			},
+			(),
+			origin,
+		))
+	}
+	impl_tx_ext_default!(T::RuntimeCall; Context; prepare);
+}

 #[cfg(test)]
 mod tests {
@@ -106,23 +112,21 @@ mod tests {
 		weights::Weight,
 	};
 	use sp_core::H256;
+	use sp_runtime::traits::DispatchTransaction;

 	#[test]
 	fn signed_ext_check_era_should_work() {
 		new_test_ext().execute_with(|| {
 			// future
 			assert_eq!(
-				CheckMortality::<Test>::from(Era::mortal(4, 2))
-					.additional_signed()
-					.err()
-					.unwrap(),
+				CheckMortality::<Test>::from(Era::mortal(4, 2)).implicit().err().unwrap(),
 				InvalidTransaction::AncientBirthBlock.into(),
 			);

 			// correct
 			System::set_block_number(13);
 			<BlockHash<Test>>::insert(12, H256::repeat_byte(1));
-			assert!(CheckMortality::<Test>::from(Era::mortal(4, 12)).additional_signed().is_ok());
+			assert!(CheckMortality::<Test>::from(Era::mortal(4, 12)).implicit().is_ok());
 		})
 	}

@@ -142,7 +146,10 @@ mod tests {
 			System::set_block_number(17);
 			<BlockHash<Test>>::insert(16, H256::repeat_byte(1));

-			assert_eq!(ext.validate(&1, CALL, &normal, len).unwrap().longevity, 15);
+			assert_eq!(
+				ext.validate_only(Some(1).into(), CALL, &normal, len).unwrap().0.longevity,
+				15
+			);
 		})
 	}
 }
@@ -17,13 +17,14 @@

 use crate::Config;
 use codec::{Decode, Encode};
-use frame_support::{dispatch::DispatchInfo, DefaultNoBound};
+use frame_support::{traits::OriginTrait, DefaultNoBound};
 use scale_info::TypeInfo;
 use sp_runtime::{
-	traits::{DispatchInfoOf, Dispatchable, SignedExtension},
-	transaction_validity::{
-		InvalidTransaction, TransactionValidity, TransactionValidityError, ValidTransaction,
+	impl_tx_ext_default,
+	traits::{
+		transaction_extension::TransactionExtensionBase, DispatchInfoOf, TransactionExtension,
 	},
+	transaction_validity::InvalidTransaction,
 };
 use sp_std::{marker::PhantomData, prelude::*};

@@ -45,66 +46,82 @@ impl<T: Config + Send + Sync> sp_std::fmt::Debug for CheckNonZeroSender<T> {
 }

 impl<T: Config + Send + Sync> CheckNonZeroSender<T> {
-	/// Create new `SignedExtension` to check runtime version.
+	/// Create new `TransactionExtension` to check runtime version.
 	pub fn new() -> Self {
 		Self(sp_std::marker::PhantomData)
 	}
 }

-impl<T: Config + Send + Sync> SignedExtension for CheckNonZeroSender<T>
-where
-	T::RuntimeCall: Dispatchable<Info = DispatchInfo>,
-{
-	type AccountId = T::AccountId;
-	type Call = T::RuntimeCall;
-	type AdditionalSigned = ();
-	type Pre = ();
+impl<T: Config + Send + Sync> TransactionExtensionBase for CheckNonZeroSender<T> {
 	const IDENTIFIER: &'static str = "CheckNonZeroSender";
-
-	fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {
-		Ok(())
+	type Implicit = ();
+	fn weight(&self) -> sp_weights::Weight {
+		<T::ExtensionsWeightInfo as super::WeightInfo>::check_non_zero_sender()
 	}
-
-	fn pre_dispatch(
-		self,
-		who: &Self::AccountId,
-		call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> Result<Self::Pre, TransactionValidityError> {
-		self.validate(who, call, info, len).map(|_| ())
-	}
-
+}
+impl<T: Config + Send + Sync, Context> TransactionExtension<T::RuntimeCall, Context>
+	for CheckNonZeroSender<T>
+{
+	type Val = ();
+	type Pre = ();
 	fn validate(
 		&self,
-		who: &Self::AccountId,
-		_call: &Self::Call,
-		_info: &DispatchInfoOf<Self::Call>,
+		origin: <T as Config>::RuntimeOrigin,
+		_call: &T::RuntimeCall,
+		_info: &DispatchInfoOf<T::RuntimeCall>,
 		_len: usize,
-	) -> TransactionValidity {
-		if who.using_encoded(|d| d.iter().all(|x| *x == 0)) {
-			return Err(TransactionValidityError::Invalid(InvalidTransaction::BadSigner))
+		_context: &mut Context,
+		_self_implicit: Self::Implicit,
+		_inherited_implication: &impl Encode,
+	) -> sp_runtime::traits::ValidateResult<Self::Val, T::RuntimeCall> {
+		if let Some(who) = origin.as_system_signer() {
+			if who.using_encoded(|d| d.iter().all(|x| *x == 0)) {
+				return Err(InvalidTransaction::BadSigner.into())
+			}
 		}
-		Ok(ValidTransaction::default())
+		Ok((Default::default(), (), origin))
 	}
+	impl_tx_ext_default!(T::RuntimeCall; Context; prepare);
 }

 #[cfg(test)]
 mod tests {
 	use super::*;
 	use crate::mock::{new_test_ext, Test, CALL};
-	use frame_support::{assert_noop, assert_ok};
+	use frame_support::{assert_ok, dispatch::DispatchInfo};
+	use sp_runtime::{traits::DispatchTransaction, TransactionValidityError};

 	#[test]
 	fn zero_account_ban_works() {
 		new_test_ext().execute_with(|| {
 			let info = DispatchInfo::default();
 			let len = 0_usize;
-			assert_noop!(
-				CheckNonZeroSender::<Test>::new().validate(&0, CALL, &info, len),
-				InvalidTransaction::BadSigner
+			assert_eq!(
+				CheckNonZeroSender::<Test>::new()
+					.validate_only(Some(0).into(), CALL, &info, len)
+					.unwrap_err(),
+				TransactionValidityError::from(InvalidTransaction::BadSigner)
 			);
-			assert_ok!(CheckNonZeroSender::<Test>::new().validate(&1, CALL, &info, len));
+			assert_ok!(CheckNonZeroSender::<Test>::new().validate_only(
+				Some(1).into(),
+				CALL,
+				&info,
+				len
+			));
+		})
+	}
+
+	#[test]
+	fn unsigned_origin_works() {
+		new_test_ext().execute_with(|| {
+			let info = DispatchInfo::default();
+			let len = 0_usize;
+			assert_ok!(CheckNonZeroSender::<Test>::new().validate_only(
+				None.into(),
+				CALL,
+				&info,
+				len
+			));
 		})
 	}
 }
@@ -15,16 +15,19 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

-use crate::Config;
+use crate::{AccountInfo, Config};
 use codec::{Decode, Encode};
 use frame_support::dispatch::DispatchInfo;
 use scale_info::TypeInfo;
 use sp_runtime::{
-	traits::{DispatchInfoOf, Dispatchable, One, SignedExtension, Zero},
-	transaction_validity::{
-		InvalidTransaction, TransactionLongevity, TransactionValidity, TransactionValidityError,
-		ValidTransaction,
+	traits::{
+		AsSystemOriginSigner, DispatchInfoOf, Dispatchable, One, TransactionExtension,
+		TransactionExtensionBase, ValidateResult, Zero,
 	},
+	transaction_validity::{
+		InvalidTransaction, TransactionLongevity, TransactionValidityError, ValidTransaction,
+	},
+	Saturating,
 };
 use sp_std::vec;

@@ -58,75 +61,78 @@ impl<T: Config> sp_std::fmt::Debug for CheckNonce<T> {
 	}
 }

-impl<T: Config> SignedExtension for CheckNonce<T>
+impl<T: Config> TransactionExtensionBase for CheckNonce<T> {
+	const IDENTIFIER: &'static str = "CheckNonce";
+	type Implicit = ();
+	fn weight(&self) -> sp_weights::Weight {
+		<T::ExtensionsWeightInfo as super::WeightInfo>::check_nonce()
+	}
+}
+impl<T: Config, Context> TransactionExtension<T::RuntimeCall, Context> for CheckNonce<T>
 where
 	T::RuntimeCall: Dispatchable<Info = DispatchInfo>,
+	<T::RuntimeCall as Dispatchable>::RuntimeOrigin: AsSystemOriginSigner<T::AccountId> + Clone,
 {
-	type AccountId = T::AccountId;
-	type Call = T::RuntimeCall;
-	type AdditionalSigned = ();
+	type Val = Option<(T::AccountId, AccountInfo<T::Nonce, T::AccountData>)>;
 	type Pre = ();
-	const IDENTIFIER: &'static str = "CheckNonce";

-	fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {
-		Ok(())
-	}
-
-	fn pre_dispatch(
-		self,
-		who: &Self::AccountId,
-		_call: &Self::Call,
-		_info: &DispatchInfoOf<Self::Call>,
+	fn validate(
+		&self,
+		origin: <T as Config>::RuntimeOrigin,
+		_call: &T::RuntimeCall,
+		_info: &DispatchInfoOf<T::RuntimeCall>,
 		_len: usize,
-	) -> Result<(), TransactionValidityError> {
-		let mut account = crate::Account::<T>::get(who);
+		_context: &mut Context,
+		_self_implicit: Self::Implicit,
+		_inherited_implication: &impl Encode,
+	) -> ValidateResult<Self::Val, T::RuntimeCall> {
+		let Some(who) = origin.as_system_origin_signer() else {
+			return Ok((Default::default(), None, origin))
+		};
+		let account = crate::Account::<T>::get(who);
 		if account.providers.is_zero() && account.sufficients.is_zero() {
 			// Nonce storage not paid for
 			return Err(InvalidTransaction::Payment.into())
 		}
-		if self.0 != account.nonce {
-			return Err(if self.0 < account.nonce {
-				InvalidTransaction::Stale
-			} else {
-				InvalidTransaction::Future
-			}
-			.into())
-		}
-		account.nonce += T::Nonce::one();
-		crate::Account::<T>::insert(who, account);
-		Ok(())
-	}
-
-	fn validate(
-		&self,
-		who: &Self::AccountId,
-		_call: &Self::Call,
-		_info: &DispatchInfoOf<Self::Call>,
-		_len: usize,
-	) -> TransactionValidity {
-		let account = crate::Account::<T>::get(who);
-		if account.providers.is_zero() && account.sufficients.is_zero() {
-			// Nonce storage not paid for
-			return InvalidTransaction::Payment.into()
-		}
 		if self.0 < account.nonce {
-			return InvalidTransaction::Stale.into()
+			return Err(InvalidTransaction::Stale.into())
 		}

-		let provides = vec![Encode::encode(&(who, self.0))];
+		let provides = vec![Encode::encode(&(who.clone(), self.0))];
 		let requires = if account.nonce < self.0 {
-			vec![Encode::encode(&(who, self.0 - One::one()))]
+			vec![Encode::encode(&(who.clone(), self.0.saturating_sub(One::one())))]
 		} else {
 			vec![]
 		};

-		Ok(ValidTransaction {
+		let validity = ValidTransaction {
 			priority: 0,
 			requires,
 			provides,
 			longevity: TransactionLongevity::max_value(),
 			propagate: true,
-		})
+		};
+
+		Ok((validity, Some((who.clone(), account)), origin))
+	}
+
+	fn prepare(
+		self,
+		val: Self::Val,
+		_origin: &T::RuntimeOrigin,
+		_call: &T::RuntimeCall,
+		_info: &DispatchInfoOf<T::RuntimeCall>,
+		_len: usize,
+		_context: &Context,
+	) -> Result<Self::Pre, TransactionValidityError> {
+		let Some((who, mut account)) = val else { return Ok(()) };
+		// `self.0 < account.nonce` already checked in `validate`.
+		if self.0 > account.nonce {
+			return Err(InvalidTransaction::Future.into())
+		}
+		account.nonce.saturating_inc();
+		crate::Account::<T>::insert(who, account);
+		Ok(())
 	}
 }

@@ -134,7 +140,8 @@ where
 mod tests {
 	use super::*;
 	use crate::mock::{new_test_ext, Test, CALL};
-	use frame_support::{assert_noop, assert_ok};
+	use frame_support::assert_ok;
+	use sp_runtime::traits::DispatchTransaction;

 	#[test]
 	fn signed_ext_check_nonce_works() {
@@ -152,22 +159,33 @@ mod tests {
 			let info = DispatchInfo::default();
 			let len = 0_usize;
 			// stale
-			assert_noop!(
-				CheckNonce::<Test>(0).validate(&1, CALL, &info, len),
-				InvalidTransaction::Stale
+			assert_eq!(
+				CheckNonce::<Test>(0)
+					.validate_only(Some(1).into(), CALL, &info, len,)
+					.unwrap_err(),
+				TransactionValidityError::Invalid(InvalidTransaction::Stale)
 			);
-			assert_noop!(
-				CheckNonce::<Test>(0).pre_dispatch(&1, CALL, &info, len),
-				InvalidTransaction::Stale
+			assert_eq!(
+				CheckNonce::<Test>(0)
+					.validate_and_prepare(Some(1).into(), CALL, &info, len)
+					.unwrap_err(),
+				InvalidTransaction::Stale.into()
 			);
 			// correct
-			assert_ok!(CheckNonce::<Test>(1).validate(&1, CALL, &info, len));
-			assert_ok!(CheckNonce::<Test>(1).pre_dispatch(&1, CALL, &info, len));
+			assert_ok!(CheckNonce::<Test>(1).validate_only(Some(1).into(), CALL, &info, len));
+			assert_ok!(CheckNonce::<Test>(1).validate_and_prepare(
+				Some(1).into(),
+				CALL,
+				&info,
+				len
+			));
 			// future
-			assert_ok!(CheckNonce::<Test>(5).validate(&1, CALL, &info, len));
-			assert_noop!(
-				CheckNonce::<Test>(5).pre_dispatch(&1, CALL, &info, len),
-				InvalidTransaction::Future
+			assert_ok!(CheckNonce::<Test>(5).validate_only(Some(1).into(), CALL, &info, len));
+			assert_eq!(
+				CheckNonce::<Test>(5)
+					.validate_and_prepare(Some(1).into(), CALL, &info, len)
+					.unwrap_err(),
+				InvalidTransaction::Future.into()
 			);
 		})
 	}
@@ -198,20 +216,44 @@ mod tests {
 			let info = DispatchInfo::default();
 			let len = 0_usize;
 			// Both providers and sufficients zero
-			assert_noop!(
-				CheckNonce::<Test>(1).validate(&1, CALL, &info, len),
-				InvalidTransaction::Payment
+			assert_eq!(
+				CheckNonce::<Test>(1)
+					.validate_only(Some(1).into(), CALL, &info, len)
+					.unwrap_err(),
+				TransactionValidityError::Invalid(InvalidTransaction::Payment)
 			);
-			assert_noop!(
-				CheckNonce::<Test>(1).pre_dispatch(&1, CALL, &info, len),
-				InvalidTransaction::Payment
+			assert_eq!(
+				CheckNonce::<Test>(1)
+					.validate_and_prepare(Some(1).into(), CALL, &info, len)
+					.unwrap_err(),
+				TransactionValidityError::Invalid(InvalidTransaction::Payment)
 			);
 			// Non-zero providers
-			assert_ok!(CheckNonce::<Test>(1).validate(&2, CALL, &info, len));
-			assert_ok!(CheckNonce::<Test>(1).pre_dispatch(&2, CALL, &info, len));
+			assert_ok!(CheckNonce::<Test>(1).validate_only(Some(2).into(), CALL, &info, len));
+			assert_ok!(CheckNonce::<Test>(1).validate_and_prepare(
+				Some(2).into(),
+				CALL,
+				&info,
+				len
+			));
 			// Non-zero sufficients
-			assert_ok!(CheckNonce::<Test>(1).validate(&3, CALL, &info, len));
-			assert_ok!(CheckNonce::<Test>(1).pre_dispatch(&3, CALL, &info, len));
+			assert_ok!(CheckNonce::<Test>(1).validate_only(Some(3).into(), CALL, &info, len));
+			assert_ok!(CheckNonce::<Test>(1).validate_and_prepare(
+				Some(3).into(),
+				CALL,
+				&info,
+				len
+			));
+		})
+	}
+
+	#[test]
+	fn unsigned_check_nonce_works() {
+		new_test_ext().execute_with(|| {
+			let info = DispatchInfo::default();
+			let len = 0_usize;
+			assert_ok!(CheckNonce::<Test>(1).validate_only(None.into(), CALL, &info, len));
+			assert_ok!(CheckNonce::<Test>(1).validate_and_prepare(None.into(), CALL, &info, len));
 		})
 	}
 }
@@ -19,7 +19,8 @@ use crate::{Config, Pallet};
 use codec::{Decode, Encode};
 use scale_info::TypeInfo;
 use sp_runtime::{
-	traits::{DispatchInfoOf, SignedExtension},
+	impl_tx_ext_default,
+	traits::{transaction_extension::TransactionExtensionBase, TransactionExtension},
 	transaction_validity::TransactionValidityError,
 };

@@ -46,30 +47,26 @@ impl<T: Config + Send + Sync> sp_std::fmt::Debug for CheckSpecVersion<T> {
 }

 impl<T: Config + Send + Sync> CheckSpecVersion<T> {
-	/// Create new `SignedExtension` to check runtime version.
+	/// Create new `TransactionExtension` to check runtime version.
 	pub fn new() -> Self {
 		Self(sp_std::marker::PhantomData)
 	}
 }

-impl<T: Config + Send + Sync> SignedExtension for CheckSpecVersion<T> {
-	type AccountId = T::AccountId;
-	type Call = <T as Config>::RuntimeCall;
-	type AdditionalSigned = u32;
-	type Pre = ();
+impl<T: Config + Send + Sync> TransactionExtensionBase for CheckSpecVersion<T> {
 	const IDENTIFIER: &'static str = "CheckSpecVersion";
-
-	fn additional_signed(&self) -> Result<Self::AdditionalSigned, TransactionValidityError> {
+	type Implicit = u32;
+	fn implicit(&self) -> Result<Self::Implicit, TransactionValidityError> {
 		Ok(<Pallet<T>>::runtime_version().spec_version)
 	}
-
-	fn pre_dispatch(
-		self,
-		who: &Self::AccountId,
-		call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> Result<Self::Pre, TransactionValidityError> {
-		self.validate(who, call, info, len).map(|_| ())
+	fn weight(&self) -> sp_weights::Weight {
+		<T::ExtensionsWeightInfo as super::WeightInfo>::check_spec_version()
 	}
 }
+impl<T: Config + Send + Sync, Context> TransactionExtension<<T as Config>::RuntimeCall, Context>
+	for CheckSpecVersion<T>
+{
+	type Val = ();
+	type Pre = ();
+	impl_tx_ext_default!(<T as Config>::RuntimeCall; Context; validate prepare);
+}
@@ -19,7 +19,8 @@ use crate::{Config, Pallet};
 use codec::{Decode, Encode};
 use scale_info::TypeInfo;
 use sp_runtime::{
-	traits::{DispatchInfoOf, SignedExtension},
+	impl_tx_ext_default,
+	traits::{transaction_extension::TransactionExtensionBase, TransactionExtension},
 	transaction_validity::TransactionValidityError,
 };

@@ -46,29 +47,26 @@ impl<T: Config + Send + Sync> sp_std::fmt::Debug for CheckTxVersion<T> {
 }

 impl<T: Config + Send + Sync> CheckTxVersion<T> {
-	/// Create new `SignedExtension` to check transaction version.
+	/// Create new `TransactionExtension` to check transaction version.
 	pub fn new() -> Self {
 		Self(sp_std::marker::PhantomData)
 	}
 }

-impl<T: Config + Send + Sync> SignedExtension for CheckTxVersion<T> {
-	type AccountId = T::AccountId;
-	type Call = <T as Config>::RuntimeCall;
-	type AdditionalSigned = u32;
-	type Pre = ();
+impl<T: Config + Send + Sync> TransactionExtensionBase for CheckTxVersion<T> {
 	const IDENTIFIER: &'static str = "CheckTxVersion";
-
-	fn additional_signed(&self) -> Result<Self::AdditionalSigned, TransactionValidityError> {
+	type Implicit = u32;
+	fn implicit(&self) -> Result<Self::Implicit, TransactionValidityError> {
 		Ok(<Pallet<T>>::runtime_version().transaction_version)
 	}
-	fn pre_dispatch(
-		self,
-		who: &Self::AccountId,
-		call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> Result<Self::Pre, TransactionValidityError> {
-		self.validate(who, call, info, len).map(|_| ())
+	fn weight(&self) -> sp_weights::Weight {
+		<T::ExtensionsWeightInfo as super::WeightInfo>::check_tx_version()
 	}
 }
+impl<T: Config + Send + Sync, Context> TransactionExtension<<T as Config>::RuntimeCall, Context>
+	for CheckTxVersion<T>
+{
+	type Val = ();
+	type Pre = ();
+	impl_tx_ext_default!(<T as Config>::RuntimeCall; Context; validate prepare);
+}
@@ -23,9 +23,12 @@ use frame_support::{
 };
 use scale_info::TypeInfo;
 use sp_runtime::{
-	traits::{DispatchInfoOf, Dispatchable, PostDispatchInfoOf, SignedExtension},
-	transaction_validity::{InvalidTransaction, TransactionValidity, TransactionValidityError},
-	DispatchResult,
+	traits::{
+		DispatchInfoOf, Dispatchable, PostDispatchInfoOf, TransactionExtension,
+		TransactionExtensionBase, ValidateResult,
+	},
+	transaction_validity::{InvalidTransaction, TransactionValidityError},
+	DispatchResult, ValidTransaction,
 };
 use sp_weights::Weight;

@@ -100,39 +103,43 @@ where
 		}
 	}

-	/// Creates new `SignedExtension` to check weight of the extrinsic.
+	/// Creates new `TransactionExtension` to check weight of the extrinsic.
 	pub fn new() -> Self {
 		Self(Default::default())
 	}

-	/// Do the pre-dispatch checks. This can be applied to both signed and unsigned.
-	///
-	/// It checks and notes the new weight and length.
-	pub fn do_pre_dispatch(
-		info: &DispatchInfoOf<T::RuntimeCall>,
-		len: usize,
-	) -> Result<(), TransactionValidityError> {
-		let next_len = Self::check_block_length(info, len)?;
-		let next_weight = Self::check_block_weight(info)?;
-		Self::check_extrinsic_weight(info)?;
-
-		crate::AllExtrinsicsLen::<T>::put(next_len);
-		crate::BlockWeight::<T>::put(next_weight);
-		Ok(())
-	}
-
 	/// Do the validate checks. This can be applied to both signed and unsigned.
 	///
 	/// It only checks that the block weight and length limit will not exceed.
-	pub fn do_validate(info: &DispatchInfoOf<T::RuntimeCall>, len: usize) -> TransactionValidity {
+	///
+	/// Returns the transaction validity and the next block length, to be used in `prepare`.
+	pub fn do_validate(
+		info: &DispatchInfoOf<T::RuntimeCall>,
+		len: usize,
+	) -> Result<(ValidTransaction, u32), TransactionValidityError> {
 		// ignore the next length. If they return `Ok`, then it is below the limit.
-		let _ = Self::check_block_length(info, len)?;
+		let next_len = Self::check_block_length(info, len)?;
 		// during validation we skip block limit check. Since the `validate_transaction`
 		// call runs on an empty block anyway, by this we prevent `on_initialize` weight
 		// consumption from causing false negatives.
 		Self::check_extrinsic_weight(info)?;

-		Ok(Default::default())
+		Ok((Default::default(), next_len))
+	}
+
+	/// Do the pre-dispatch checks. This can be applied to both signed and unsigned.
+	///
+	/// It checks and notes the new weight and length.
+	pub fn do_prepare(
+		info: &DispatchInfoOf<T::RuntimeCall>,
+		next_len: u32,
+	) -> Result<(), TransactionValidityError> {
+		let next_weight = Self::check_block_weight(info)?;
+		// Extrinsic weight already checked in `validate`.
+
+		crate::AllExtrinsicsLen::<T>::put(next_len);
+		crate::BlockWeight::<T>::put(next_weight);
+		Ok(())
 	}
 }

@@ -201,62 +208,55 @@ where
 	Ok(all_weight)
 }

-impl<T: Config + Send + Sync> SignedExtension for CheckWeight<T>
+impl<T: Config + Send + Sync> TransactionExtensionBase for CheckWeight<T> {
+	const IDENTIFIER: &'static str = "CheckWeight";
+	type Implicit = ();
+
+	fn weight(&self) -> Weight {
+		<T::ExtensionsWeightInfo as super::WeightInfo>::check_weight()
+	}
+}
+impl<T: Config + Send + Sync, Context> TransactionExtension<T::RuntimeCall, Context>
+	for CheckWeight<T>
 where
 	T::RuntimeCall: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo>,
 {
-	type AccountId = T::AccountId;
-	type Call = T::RuntimeCall;
-	type AdditionalSigned = ();
 	type Pre = ();
-	const IDENTIFIER: &'static str = "CheckWeight";
-
-	fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {
-		Ok(())
-	}
-
-	fn pre_dispatch(
-		self,
-		_who: &Self::AccountId,
-		_call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> Result<(), TransactionValidityError> {
-		Self::do_pre_dispatch(info, len)
-	}
+	type Val = u32; /* next block length */

 	fn validate(
 		&self,
-		_who: &Self::AccountId,
-		_call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
+		origin: T::RuntimeOrigin,
+		_call: &T::RuntimeCall,
+		info: &DispatchInfoOf<T::RuntimeCall>,
 		len: usize,
-	) -> TransactionValidity {
-		Self::do_validate(info, len)
+		_context: &mut Context,
+		_self_implicit: Self::Implicit,
+		_inherited_implication: &impl Encode,
+	) -> ValidateResult<Self::Val, T::RuntimeCall> {
+		let (validity, next_len) = Self::do_validate(info, len)?;
+		Ok((validity, next_len, origin))
 	}

-	fn pre_dispatch_unsigned(
-		_call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> Result<(), TransactionValidityError> {
-		Self::do_pre_dispatch(info, len)
-	}
-
-	fn validate_unsigned(
-		_call: &Self::Call,
-		info: &DispatchInfoOf<Self::Call>,
-		len: usize,
-	) -> TransactionValidity {
-		Self::do_validate(info, len)
+	fn prepare(
+		self,
+		val: Self::Val,
+		_origin: &T::RuntimeOrigin,
+		_call: &T::RuntimeCall,
+		info: &DispatchInfoOf<T::RuntimeCall>,
+		_len: usize,
+		_context: &Context,
+	) -> Result<Self::Pre, TransactionValidityError> {
+		Self::do_prepare(info, val)
 	}

 	fn post_dispatch(
-		_pre: Option<Self::Pre>,
-		info: &DispatchInfoOf<Self::Call>,
-		post_info: &PostDispatchInfoOf<Self::Call>,
+		_pre: Self::Pre,
+		info: &DispatchInfoOf<T::RuntimeCall>,
+		post_info: &PostDispatchInfoOf<T::RuntimeCall>,
 		_len: usize,
 		_result: &DispatchResult,
+		_context: &Context,
 	) -> Result<(), TransactionValidityError> {
 		let unspent = post_info.calc_unspent(info);
 		if unspent.any_gt(Weight::zero()) {
@@ -301,6 +301,7 @@ mod tests {
 		AllExtrinsicsLen, BlockWeight, DispatchClass,
 	};
 	use frame_support::{assert_err, assert_ok, dispatch::Pays, weights::Weight};
+	use sp_runtime::traits::DispatchTransaction;
 	use sp_std::marker::PhantomData;

 	fn block_weights() -> crate::limits::BlockWeights {
@@ -338,7 +339,8 @@ mod tests {
 		}

 		check(|max, len| {
-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(max, len));
+			let next_len = CheckWeight::<Test>::check_block_length(max, len).unwrap();
+			assert_ok!(CheckWeight::<Test>::do_prepare(max, next_len));
 			assert_eq!(System::block_weight().total(), Weight::MAX);
 			assert!(System::block_weight().total().ref_time() > block_weight_limit().ref_time());
 		});
@@ -419,9 +421,11 @@ mod tests {

 			let len = 0_usize;

-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(&max_normal, len));
+			let next_len = CheckWeight::<Test>::check_block_length(&max_normal, len).unwrap();
+			assert_ok!(CheckWeight::<Test>::do_prepare(&max_normal, next_len));
 			assert_eq!(System::block_weight().total(), Weight::from_parts(768, 0));
-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(&rest_operational, len));
+			let next_len = CheckWeight::<Test>::check_block_length(&rest_operational, len).unwrap();
+			assert_ok!(CheckWeight::<Test>::do_prepare(&rest_operational, next_len));
 			assert_eq!(block_weight_limit(), Weight::from_parts(1024, u64::MAX));
 			assert_eq!(System::block_weight().total(), block_weight_limit().set_proof_size(0));
 			// Checking single extrinsic should not take current block weight into account.
@@ -443,10 +447,12 @@ mod tests {

 			let len = 0_usize;

-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(&rest_operational, len));
+			let next_len = CheckWeight::<Test>::check_block_length(&rest_operational, len).unwrap();
+			assert_ok!(CheckWeight::<Test>::do_prepare(&rest_operational, next_len));
 			// Extra 20 here from block execution + base extrinsic weight
 			assert_eq!(System::block_weight().total(), Weight::from_parts(266, 0));
-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(&max_normal, len));
+			let next_len = CheckWeight::<Test>::check_block_length(&max_normal, len).unwrap();
+			assert_ok!(CheckWeight::<Test>::do_prepare(&max_normal, next_len));
 			assert_eq!(block_weight_limit(), Weight::from_parts(1024, u64::MAX));
 			assert_eq!(System::block_weight().total(), block_weight_limit().set_proof_size(0));
 		});
@@ -469,16 +475,19 @@ mod tests {
 			};
 			let len = 0_usize;

+			let next_len = CheckWeight::<Test>::check_block_length(&dispatch_normal, len).unwrap();
 			assert_err!(
-				CheckWeight::<Test>::do_pre_dispatch(&dispatch_normal, len),
+				CheckWeight::<Test>::do_prepare(&dispatch_normal, next_len),
 				InvalidTransaction::ExhaustsResources
 			);
+			let next_len =
+				CheckWeight::<Test>::check_block_length(&dispatch_operational, len).unwrap();
 			// Thank goodness we can still do an operational transaction to possibly save the
 			// blockchain.
-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(&dispatch_operational, len));
+			assert_ok!(CheckWeight::<Test>::do_prepare(&dispatch_operational, next_len));
 			// Not too much though
 			assert_err!(
-				CheckWeight::<Test>::do_pre_dispatch(&dispatch_operational, len),
+				CheckWeight::<Test>::do_prepare(&dispatch_operational, next_len),
 				InvalidTransaction::ExhaustsResources
 			);
 			// Even with full block, validity of single transaction should be correct.
@@ -503,21 +512,35 @@ mod tests {
 				current_weight.set(normal_limit, DispatchClass::Normal)
 			});
 			// will not fit.
-			assert_err!(
-				CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, &normal, len),
-				InvalidTransaction::ExhaustsResources
+			assert_eq!(
+				CheckWeight::<Test>(PhantomData)
+					.validate_and_prepare(Some(1).into(), CALL, &normal, len)
+					.unwrap_err(),
+				InvalidTransaction::ExhaustsResources.into()
 			);
 			// will fit.
-			assert_ok!(CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, &op, len));
+			assert_ok!(CheckWeight::<Test>(PhantomData).validate_and_prepare(
+				Some(1).into(),
+				CALL,
+				&op,
+				len
+			));

 			// likewise for length limit.
 			let len = 100_usize;
 			AllExtrinsicsLen::<Test>::put(normal_length_limit());
-			assert_err!(
-				CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, &normal, len),
-				InvalidTransaction::ExhaustsResources
+			assert_eq!(
+				CheckWeight::<Test>(PhantomData)
+					.validate_and_prepare(Some(1).into(), CALL, &normal, len)
+					.unwrap_err(),
+				InvalidTransaction::ExhaustsResources.into()
 			);
-			assert_ok!(CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, &op, len));
+			assert_ok!(CheckWeight::<Test>(PhantomData).validate_and_prepare(
+				Some(1).into(),
+				CALL,
+				&op,
+				len
+			));
 		})
 	}

@@ -528,7 +551,12 @@ mod tests {
 			let normal_limit = normal_weight_limit().ref_time() as usize;
 			let reset_check_weight = |tx, s, f| {
 				AllExtrinsicsLen::<Test>::put(0);
-				let r = CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, tx, s);
+				let r = CheckWeight::<Test>(PhantomData).validate_and_prepare(
+					Some(1).into(),
+					CALL,
+					tx,
+					s,
+				);
 				if f {
 					assert!(r.is_err())
 				} else {
@@ -571,7 +599,12 @@ mod tests {
 				BlockWeight::<Test>::mutate(|current_weight| {
 					current_weight.set(s, DispatchClass::Normal)
 				});
-				let r = CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, i, len);
+				let r = CheckWeight::<Test>(PhantomData).validate_and_prepare(
+					Some(1).into(),
+					CALL,
+					i,
+					len,
+				);
 				if f {
 					assert!(r.is_err())
 				} else {
@@ -604,18 +637,22 @@ mod tests {
 					.set(Weight::from_parts(256, 0) - base_extrinsic, DispatchClass::Normal);
 			});

-			let pre = CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, &info, len).unwrap();
+			let pre = CheckWeight::<Test>(PhantomData)
+				.validate_and_prepare(Some(1).into(), CALL, &info, len)
+				.unwrap()
+				.0;
 			assert_eq!(
 				BlockWeight::<Test>::get().total(),
 				info.weight + Weight::from_parts(256, 0)
 			);

 			assert_ok!(CheckWeight::<Test>::post_dispatch(
-				Some(pre),
+				pre,
 				&info,
 				&post_info,
 				len,
-				&Ok(())
+				&Ok(()),
+				&()
 			));
 			assert_eq!(
 				BlockWeight::<Test>::get().total(),
@@ -639,7 +676,10 @@ mod tests {
 				current_weight.set(Weight::from_parts(128, 0), DispatchClass::Normal);
 			});

-			let pre = CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, &info, len).unwrap();
+			let pre = CheckWeight::<Test>(PhantomData)
+				.validate_and_prepare(Some(1).into(), CALL, &info, len)
+				.unwrap()
+				.0;
 			assert_eq!(
 				BlockWeight::<Test>::get().total(),
 				info.weight +
@@ -648,11 +688,12 @@ mod tests {
 			);

 			assert_ok!(CheckWeight::<Test>::post_dispatch(
-				Some(pre),
+				pre,
 				&info,
 				&post_info,
 				len,
-				&Ok(())
+				&Ok(()),
+				&()
 			));
 			assert_eq!(
 				BlockWeight::<Test>::get().total(),
@@ -672,7 +713,12 @@ mod tests {

 			// Initial weight from `weights.base_block`
 			assert_eq!(System::block_weight().total(), weights.base_block);
-			assert_ok!(CheckWeight::<Test>(PhantomData).pre_dispatch(&1, CALL, &free, len));
+			assert_ok!(CheckWeight::<Test>(PhantomData).validate_and_prepare(
+				Some(1).into(),
+				CALL,
+				&free,
+				len
+			));
 			assert_eq!(
 				System::block_weight().total(),
 				weights.get(DispatchClass::Normal).base_extrinsic + weights.base_block
@@ -696,9 +742,11 @@ mod tests {

 			let len = 0_usize;

-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(&max_normal, len));
+			let next_len = CheckWeight::<Test>::check_block_length(&max_normal, len).unwrap();
+			assert_ok!(CheckWeight::<Test>::do_prepare(&max_normal, next_len));
 			assert_eq!(System::block_weight().total(), Weight::from_parts(768, 0));
-			assert_ok!(CheckWeight::<Test>::do_pre_dispatch(&mandatory, len));
+			let next_len = CheckWeight::<Test>::check_block_length(&mandatory, len).unwrap();
+			assert_ok!(CheckWeight::<Test>::do_prepare(&mandatory, next_len));
 			assert_eq!(block_weight_limit(), Weight::from_parts(1024, u64::MAX));
 			assert_eq!(System::block_weight().total(), Weight::from_parts(1024 + 768, 0));
 			assert_eq!(CheckWeight::<Test>::check_extrinsic_weight(&mandatory), Ok(()));
@@ -22,3 +22,6 @@ pub mod check_nonce;
 pub mod check_spec_version;
 pub mod check_tx_version;
 pub mod check_weight;
+pub mod weights;
+
+pub use weights::WeightInfo;
@@ -0,0 +1,196 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Autogenerated weights for `frame_system_extensions`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2024-03-01, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! WORST CASE MAP SIZE: `1000000`
+//! HOSTNAME: `runner-bn-ce5rx-project-674-concurrent-0`, CPU: `Intel(R) Xeon(R) CPU @ 2.60GHz`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
+
+// Executed Command:
+// ./target/production/substrate-node
+// benchmark
+// pallet
+// --chain=dev
+// --steps=50
+// --repeat=20
+// --pallet=frame_system_extensions
+// --no-storage-info
+// --no-median-slopes
+// --no-min-squares
+// --extrinsic=*
+// --wasm-execution=compiled
+// --heap-pages=4096
+// --output=./substrate/frame/system/src/extensions/weights.rs
+// --header=./substrate/HEADER-APACHE2
+// --template=./substrate/.maintain/frame-weight-template.hbs
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+#![allow(missing_docs)]
+
+use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use core::marker::PhantomData;
+
+/// Weight functions needed for `frame_system_extensions`.
+pub trait WeightInfo {
+	fn check_genesis() -> Weight;
+	fn check_mortality() -> Weight;
+	fn check_non_zero_sender() -> Weight;
+	fn check_nonce() -> Weight;
+	fn check_spec_version() -> Weight;
+	fn check_tx_version() -> Weight;
+	fn check_weight() -> Weight;
+}
+
+/// Weights for `frame_system_extensions` using the Substrate node and recommended hardware.
+pub struct SubstrateWeight<T>(PhantomData<T>);
+impl<T: crate::Config> WeightInfo for SubstrateWeight<T> {
+	/// Storage: `System::BlockHash` (r:1 w:0)
+	/// Proof: `System::BlockHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+	fn check_genesis() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `54`
+		//  Estimated: `3509`
+		// Minimum execution time: 3_876_000 picoseconds.
+		Weight::from_parts(4_160_000, 3509)
+			.saturating_add(T::DbWeight::get().reads(1_u64))
+	}
+	/// Storage: `System::BlockHash` (r:1 w:0)
+	/// Proof: `System::BlockHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+	fn check_mortality() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `92`
+		//  Estimated: `3509`
+		// Minimum execution time: 6_296_000 picoseconds.
+		Weight::from_parts(6_523_000, 3509)
+			.saturating_add(T::DbWeight::get().reads(1_u64))
+	}
+	fn check_non_zero_sender() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `0`
+		//  Estimated: `0`
+		// Minimum execution time: 449_000 picoseconds.
+		Weight::from_parts(527_000, 0)
+	}
+	/// Storage: `System::Account` (r:1 w:1)
+	/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
+	fn check_nonce() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `101`
+		//  Estimated: `3593`
+		// Minimum execution time: 5_689_000 picoseconds.
+		Weight::from_parts(6_000_000, 3593)
+			.saturating_add(T::DbWeight::get().reads(1_u64))
+			.saturating_add(T::DbWeight::get().writes(1_u64))
+	}
+	fn check_spec_version() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `0`
+		//  Estimated: `0`
+		// Minimum execution time: 399_000 picoseconds.
+		Weight::from_parts(461_000, 0)
+	}
+	fn check_tx_version() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `0`
+		//  Estimated: `0`
+		// Minimum execution time: 390_000 picoseconds.
+		Weight::from_parts(439_000, 0)
+	}
+	/// Storage: `System::AllExtrinsicsLen` (r:1 w:1)
+	/// Proof: `System::AllExtrinsicsLen` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+	fn check_weight() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `24`
+		//  Estimated: `1489`
+		// Minimum execution time: 4_375_000 picoseconds.
+		Weight::from_parts(4_747_000, 1489)
+			.saturating_add(T::DbWeight::get().reads(1_u64))
+			.saturating_add(T::DbWeight::get().writes(1_u64))
+	}
+}
+
+// For backwards compatibility and tests.
+impl WeightInfo for () {
+	/// Storage: `System::BlockHash` (r:1 w:0)
+	/// Proof: `System::BlockHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+	fn check_genesis() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `54`
+		//  Estimated: `3509`
+		// Minimum execution time: 3_876_000 picoseconds.
+		Weight::from_parts(4_160_000, 3509)
+			.saturating_add(RocksDbWeight::get().reads(1_u64))
+	}
+	/// Storage: `System::BlockHash` (r:1 w:0)
+	/// Proof: `System::BlockHash` (`max_values`: None, `max_size`: Some(44), added: 2519, mode: `MaxEncodedLen`)
+	fn check_mortality() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `92`
+		//  Estimated: `3509`
+		// Minimum execution time: 6_296_000 picoseconds.
+		Weight::from_parts(6_523_000, 3509)
+			.saturating_add(RocksDbWeight::get().reads(1_u64))
+	}
+	fn check_non_zero_sender() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `0`
+		//  Estimated: `0`
+		// Minimum execution time: 449_000 picoseconds.
+		Weight::from_parts(527_000, 0)
+	}
+	/// Storage: `System::Account` (r:1 w:1)
+	/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
+	fn check_nonce() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `101`
+		//  Estimated: `3593`
+		// Minimum execution time: 5_689_000 picoseconds.
+		Weight::from_parts(6_000_000, 3593)
+			.saturating_add(RocksDbWeight::get().reads(1_u64))
+			.saturating_add(RocksDbWeight::get().writes(1_u64))
+	}
+	fn check_spec_version() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `0`
+		//  Estimated: `0`
+		// Minimum execution time: 399_000 picoseconds.
+		Weight::from_parts(461_000, 0)
+	}
+	fn check_tx_version() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `0`
+		//  Estimated: `0`
+		// Minimum execution time: 390_000 picoseconds.
+		Weight::from_parts(439_000, 0)
+	}
+	/// Storage: `System::AllExtrinsicsLen` (r:1 w:1)
+	/// Proof: `System::AllExtrinsicsLen` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
+	fn check_weight() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `24`
+		//  Estimated: `1489`
+		// Minimum execution time: 4_375_000 picoseconds.
+		Weight::from_parts(4_747_000, 1489)
+			.saturating_add(RocksDbWeight::get().reads(1_u64))
+			.saturating_add(RocksDbWeight::get().writes(1_u64))
+	}
+}
@@ -166,7 +166,7 @@ pub use extensions::{
 	check_genesis::CheckGenesis, check_mortality::CheckMortality,
 	check_non_zero_sender::CheckNonZeroSender, check_nonce::CheckNonce,
 	check_spec_version::CheckSpecVersion, check_tx_version::CheckTxVersion,
-	check_weight::CheckWeight,
+	check_weight::CheckWeight, WeightInfo as ExtensionsWeightInfo,
 };
 // Backward compatible re-export.
 pub use extensions::check_mortality::CheckMortality as CheckEra;
@@ -284,6 +284,7 @@ pub mod pallet {
 			type OnNewAccount = ();
 			type OnKilledAccount = ();
 			type SystemWeightInfo = ();
+			type ExtensionsWeightInfo = ();
 			type SS58Prefix = ();
 			type Version = ();
 			type BlockWeights = ();
@@ -356,6 +357,9 @@ pub mod pallet {
 			/// Weight information for the extrinsics of this pallet.
 			type SystemWeightInfo = ();

+			/// Weight information for the extensions of this pallet.
+			type ExtensionsWeightInfo = ();
+
 			/// This is used as an identifier of the chain.
 			type SS58Prefix = ();

@@ -563,8 +567,12 @@ pub mod pallet {
 		/// All resources should be cleaned up associated with the given account.
 		type OnKilledAccount: OnKilledAccount<Self::AccountId>;

+		/// Weight information for the extrinsics of this pallet.
 		type SystemWeightInfo: WeightInfo;

+		/// Weight information for the transaction extensions of this pallet.
+		type ExtensionsWeightInfo: extensions::WeightInfo;
+
 		/// The designated SS58 prefix of this chain.
 		///
 		/// This replaces the "ss58Format" property declared in the chain spec. Reason is
@@ -79,6 +79,9 @@ pub struct SubmitTransaction<T: SendTransactionTypes<OverarchingCall>, Overarchi
 	_phantom: sp_std::marker::PhantomData<(T, OverarchingCall)>,
 }

+// TODO [#2415]: Avoid splitting call and the totally opaque `signature`; `CreateTransaction` trait
+// should provide something which impls `Encode`, which can be sent onwards to
+// `sp_io::offchain::submit_transaction`. There's no great need to split things up as in here.
 impl<T, LocalCall> SubmitTransaction<T, LocalCall>
 where
 	T: SendTransactionTypes<LocalCall>,
@@ -88,6 +91,8 @@ where
 		call: <T as SendTransactionTypes<LocalCall>>::OverarchingCall,
 		signature: Option<<T::Extrinsic as ExtrinsicT>::SignaturePayload>,
 	) -> Result<(), ()> {
+		// TODO: Use regular transaction API instead.
+		#[allow(deprecated)]
 		let xt = T::Extrinsic::new(call, signature).ok_or(())?;
 		sp_io::offchain::submit_transaction(xt.encode())
 	}
@@ -471,7 +476,7 @@ pub trait SendTransactionTypes<LocalCall> {
 ///
 /// This trait is meant to be implemented by the runtime and is responsible for constructing
 /// a payload to be signed and contained within the extrinsic.
-/// This will most likely include creation of `SignedExtra` (a set of `SignedExtensions`).
+/// This will most likely include creation of `TxExtension` (a tuple of `TransactionExtension`s).
 /// Note that the result can be altered by inspecting the `Call` (for instance adjusting
 /// fees, or mortality depending on the `pallet` being called).
 pub trait CreateSignedTransaction<LocalCall>:
@@ -621,14 +626,17 @@ mod tests {
 	use crate::mock::{RuntimeCall, Test as TestRuntime, CALL};
 	use codec::Decode;
 	use sp_core::offchain::{testing, TransactionPoolExt};
-	use sp_runtime::testing::{TestSignature, TestXt, UintAuthorityId};
+	use sp_runtime::{
+		generic::UncheckedExtrinsic,
+		testing::{TestSignature, UintAuthorityId},
+	};

 	impl SigningTypes for TestRuntime {
 		type Public = UintAuthorityId;
 		type Signature = TestSignature;
 	}

-	type Extrinsic = TestXt<RuntimeCall, ()>;
+	type Extrinsic = UncheckedExtrinsic<u64, RuntimeCall, (), ()>;

 	impl SendTransactionTypes<RuntimeCall> for TestRuntime {
 		type Extrinsic = Extrinsic;
@@ -693,7 +701,7 @@ mod tests {
 			let _tx3 = pool_state.write().transactions.pop().unwrap();
 			assert!(pool_state.read().transactions.is_empty());
 			let tx1 = Extrinsic::decode(&mut &*tx1).unwrap();
-			assert_eq!(tx1.signature, None);
+			assert!(tx1.is_inherent());
 		});
 	}

@@ -724,7 +732,7 @@ mod tests {
 			let tx1 = pool_state.write().transactions.pop().unwrap();
 			assert!(pool_state.read().transactions.is_empty());
 			let tx1 = Extrinsic::decode(&mut &*tx1).unwrap();
-			assert_eq!(tx1.signature, None);
+			assert!(tx1.is_inherent());
 		});
 	}

@@ -758,7 +766,7 @@ mod tests {
 			let _tx2 = pool_state.write().transactions.pop().unwrap();
 			assert!(pool_state.read().transactions.is_empty());
 			let tx1 = Extrinsic::decode(&mut &*tx1).unwrap();
-			assert_eq!(tx1.signature, None);
+			assert!(tx1.is_inherent());
 		});
 	}

@@ -790,7 +798,7 @@ mod tests {
 			let tx1 = pool_state.write().transactions.pop().unwrap();
 			assert!(pool_state.read().transactions.is_empty());
 			let tx1 = Extrinsic::decode(&mut &*tx1).unwrap();
-			assert_eq!(tx1.signature, None);
+			assert!(tx1.is_inherent());
 		});
 	}
 }
@@ -15,30 +15,31 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

-//! Autogenerated weights for frame_system
+//! Autogenerated weights for `frame_system`
 //!
-//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
-//! DATE: 2023-06-22, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
+//! DATE: 2024-03-01, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
 //! WORST CASE MAP SIZE: `1000000`
-//! HOSTNAME: `runner-s7kdgajz-project-145-concurrent-0`, CPU: `Intel(R) Xeon(R) CPU @ 2.60GHz`
-//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("dev"), DB CACHE: 1024
+//! HOSTNAME: `runner-bn-ce5rx-project-674-concurrent-0`, CPU: `Intel(R) Xeon(R) CPU @ 2.60GHz`
+//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`

 // Executed Command:
-// target/production/substrate
+// ./target/production/substrate-node
 // benchmark
 // pallet
+// --chain=dev
 // --steps=50
 // --repeat=20
+// --pallet=frame_system
+// --no-storage-info
+// --no-median-slopes
+// --no-min-squares
 // --extrinsic=*
-// --execution=wasm
 // --wasm-execution=compiled
 // --heap-pages=4096
-// --json-file=/builds/parity/mirrors/substrate/.git/.artifacts/bench.json
-// --pallet=frame-system
-// --chain=dev
-// --header=./HEADER-APACHE2
-// --output=./frame/system/src/weights.rs
-// --template=./.maintain/frame-weight-template.hbs
+// --output=./substrate/frame/system/src/weights.rs
+// --header=./substrate/HEADER-APACHE2
+// --template=./substrate/.maintain/frame-weight-template.hbs

 #![cfg_attr(rustfmt, rustfmt_skip)]
 #![allow(unused_parens)]
@@ -48,7 +49,7 @@
 use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
 use core::marker::PhantomData;

-/// Weight functions needed for frame_system.
+/// Weight functions needed for `frame_system`.
 pub trait WeightInfo {
 	fn remark(b: u32, ) -> Weight;
 	fn remark_with_event(b: u32, ) -> Weight;
@@ -61,7 +62,7 @@ pub trait WeightInfo {
 	fn apply_authorized_upgrade() -> Weight;
 }

-/// Weights for frame_system using the Substrate node and recommended hardware.
+/// Weights for `frame_system` using the Substrate node and recommended hardware.
 pub struct SubstrateWeight<T>(PhantomData<T>);
 impl<T: crate::Config> WeightInfo for SubstrateWeight<T> {
 	/// The range of component `b` is `[0, 3932160]`.
@@ -69,84 +70,86 @@ impl<T: crate::Config> WeightInfo for SubstrateWeight<T> {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 2_004_000 picoseconds.
-		Weight::from_parts(2_119_000, 0)
+		// Minimum execution time: 2_130_000 picoseconds.
+		Weight::from_parts(2_976_430, 0)
 			// Standard Error: 0
-			.saturating_add(Weight::from_parts(390, 0).saturating_mul(b.into()))
+			.saturating_add(Weight::from_parts(386, 0).saturating_mul(b.into()))
 	}
 	/// The range of component `b` is `[0, 3932160]`.
 	fn remark_with_event(b: u32, ) -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 8_032_000 picoseconds.
-		Weight::from_parts(8_097_000, 0)
-			// Standard Error: 2
-			.saturating_add(Weight::from_parts(1_455, 0).saturating_mul(b.into()))
+		// Minimum execution time: 5_690_000 picoseconds.
+		Weight::from_parts(15_071_416, 0)
+			// Standard Error: 1
+			.saturating_add(Weight::from_parts(1_387, 0).saturating_mul(b.into()))
 	}
-	/// Storage: System Digest (r:1 w:1)
-	/// Proof Skipped: System Digest (max_values: Some(1), max_size: None, mode: Measured)
-	/// Storage: unknown `0x3a686561707061676573` (r:0 w:1)
-	/// Proof Skipped: unknown `0x3a686561707061676573` (r:0 w:1)
+	/// Storage: `System::Digest` (r:1 w:1)
+	/// Proof: `System::Digest` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
+	/// Storage: UNKNOWN KEY `0x3a686561707061676573` (r:0 w:1)
+	/// Proof: UNKNOWN KEY `0x3a686561707061676573` (r:0 w:1)
 	fn set_heap_pages() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `1485`
-		// Minimum execution time: 4_446_000 picoseconds.
-		Weight::from_parts(4_782_000, 1485)
+		// Minimum execution time: 3_822_000 picoseconds.
+		Weight::from_parts(4_099_000, 1485)
 			.saturating_add(T::DbWeight::get().reads(1_u64))
 			.saturating_add(T::DbWeight::get().writes(2_u64))
 	}
-	/// Storage: System Digest (r:1 w:1)
-	/// Proof Skipped: System Digest (max_values: Some(1), max_size: None, mode: Measured)
-	/// Storage: unknown `0x3a636f6465` (r:0 w:1)
-	/// Proof Skipped: unknown `0x3a636f6465` (r:0 w:1)
+	/// Storage: `MultiBlockMigrations::Cursor` (r:1 w:0)
+	/// Proof: `MultiBlockMigrations::Cursor` (`max_values`: Some(1), `max_size`: Some(65550), added: 66045, mode: `MaxEncodedLen`)
+	/// Storage: `System::Digest` (r:1 w:1)
+	/// Proof: `System::Digest` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
+	/// Storage: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
+	/// Proof: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
 	fn set_code() -> Weight {
 		// Proof Size summary in bytes:
-		//  Measured:  `0`
-		//  Estimated: `1485`
-		// Minimum execution time: 84_000_503_000 picoseconds.
-		Weight::from_parts(87_586_619_000, 1485)
-			.saturating_add(T::DbWeight::get().reads(1_u64))
+		//  Measured:  `142`
+		//  Estimated: `67035`
+		// Minimum execution time: 81_512_045_000 picoseconds.
+		Weight::from_parts(82_321_281_000, 67035)
+			.saturating_add(T::DbWeight::get().reads(2_u64))
 			.saturating_add(T::DbWeight::get().writes(2_u64))
 	}
-	/// Storage: Skipped Metadata (r:0 w:0)
-	/// Proof Skipped: Skipped Metadata (max_values: None, max_size: None, mode: Measured)
+	/// Storage: `Skipped::Metadata` (r:0 w:0)
+	/// Proof: `Skipped::Metadata` (`max_values`: None, `max_size`: None, mode: `Measured`)
 	/// The range of component `i` is `[0, 1000]`.
 	fn set_storage(i: u32, ) -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 2_086_000 picoseconds.
-		Weight::from_parts(2_175_000, 0)
-			// Standard Error: 1_056
-			.saturating_add(Weight::from_parts(841_511, 0).saturating_mul(i.into()))
+		// Minimum execution time: 2_074_000 picoseconds.
+		Weight::from_parts(2_137_000, 0)
+			// Standard Error: 879
+			.saturating_add(Weight::from_parts(797_224, 0).saturating_mul(i.into()))
 			.saturating_add(T::DbWeight::get().writes((1_u64).saturating_mul(i.into())))
 	}
-	/// Storage: Skipped Metadata (r:0 w:0)
-	/// Proof Skipped: Skipped Metadata (max_values: None, max_size: None, mode: Measured)
+	/// Storage: `Skipped::Metadata` (r:0 w:0)
+	/// Proof: `Skipped::Metadata` (`max_values`: None, `max_size`: None, mode: `Measured`)
 	/// The range of component `i` is `[0, 1000]`.
 	fn kill_storage(i: u32, ) -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 2_000_000 picoseconds.
-		Weight::from_parts(2_255_000, 0)
-			// Standard Error: 1_425
-			.saturating_add(Weight::from_parts(662_473, 0).saturating_mul(i.into()))
+		// Minimum execution time: 2_122_000 picoseconds.
+		Weight::from_parts(2_208_000, 0)
+			// Standard Error: 855
+			.saturating_add(Weight::from_parts(594_034, 0).saturating_mul(i.into()))
 			.saturating_add(T::DbWeight::get().writes((1_u64).saturating_mul(i.into())))
 	}
-	/// Storage: Skipped Metadata (r:0 w:0)
-	/// Proof Skipped: Skipped Metadata (max_values: None, max_size: None, mode: Measured)
+	/// Storage: `Skipped::Metadata` (r:0 w:0)
+	/// Proof: `Skipped::Metadata` (`max_values`: None, `max_size`: None, mode: `Measured`)
 	/// The range of component `p` is `[0, 1000]`.
 	fn kill_prefix(p: u32, ) -> Weight {
 		// Proof Size summary in bytes:
-		//  Measured:  `115 + p * (69 ±0)`
-		//  Estimated: `128 + p * (70 ±0)`
-		// Minimum execution time: 4_189_000 picoseconds.
-		Weight::from_parts(4_270_000, 128)
-			// Standard Error: 2_296
-			.saturating_add(Weight::from_parts(1_389_650, 0).saturating_mul(p.into()))
+		//  Measured:  `129 + p * (69 ±0)`
+		//  Estimated: `135 + p * (70 ±0)`
+		// Minimum execution time: 3_992_000 picoseconds.
+		Weight::from_parts(4_170_000, 135)
+			// Standard Error: 1_377
+			.saturating_add(Weight::from_parts(1_267_892, 0).saturating_mul(p.into()))
 			.saturating_add(T::DbWeight::get().reads((1_u64).saturating_mul(p.into())))
 			.saturating_add(T::DbWeight::get().writes((1_u64).saturating_mul(p.into())))
 			.saturating_add(Weight::from_parts(0, 70).saturating_mul(p.into()))
@@ -157,114 +160,116 @@ impl<T: crate::Config> WeightInfo for SubstrateWeight<T> {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 33_027_000 picoseconds.
-		Weight::from_parts(33_027_000, 0)
-			.saturating_add(Weight::from_parts(0, 0))
-			.saturating_add(T::DbWeight::get().writes(1))
+		// Minimum execution time: 8_872_000 picoseconds.
+		Weight::from_parts(9_513_000, 0)
+			.saturating_add(T::DbWeight::get().writes(1_u64))
 	}
 	/// Storage: `System::AuthorizedUpgrade` (r:1 w:1)
 	/// Proof: `System::AuthorizedUpgrade` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `MaxEncodedLen`)
+	/// Storage: `MultiBlockMigrations::Cursor` (r:1 w:0)
+	/// Proof: `MultiBlockMigrations::Cursor` (`max_values`: Some(1), `max_size`: Some(65550), added: 66045, mode: `MaxEncodedLen`)
 	/// Storage: `System::Digest` (r:1 w:1)
 	/// Proof: `System::Digest` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
 	/// Storage: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
 	/// Proof: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
 	fn apply_authorized_upgrade() -> Weight {
 		// Proof Size summary in bytes:
-		//  Measured:  `22`
-		//  Estimated: `1518`
-		// Minimum execution time: 118_101_992_000 picoseconds.
-		Weight::from_parts(118_101_992_000, 0)
-			.saturating_add(Weight::from_parts(0, 1518))
-			.saturating_add(T::DbWeight::get().reads(2))
-			.saturating_add(T::DbWeight::get().writes(3))
+		//  Measured:  `164`
+		//  Estimated: `67035`
+		// Minimum execution time: 85_037_546_000 picoseconds.
+		Weight::from_parts(85_819_414_000, 67035)
+			.saturating_add(T::DbWeight::get().reads(3_u64))
+			.saturating_add(T::DbWeight::get().writes(3_u64))
 	}
 }

-// For backwards compatibility and tests
+// For backwards compatibility and tests.
 impl WeightInfo for () {
 	/// The range of component `b` is `[0, 3932160]`.
 	fn remark(b: u32, ) -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 2_004_000 picoseconds.
-		Weight::from_parts(2_119_000, 0)
+		// Minimum execution time: 2_130_000 picoseconds.
+		Weight::from_parts(2_976_430, 0)
 			// Standard Error: 0
-			.saturating_add(Weight::from_parts(390, 0).saturating_mul(b.into()))
+			.saturating_add(Weight::from_parts(386, 0).saturating_mul(b.into()))
 	}
 	/// The range of component `b` is `[0, 3932160]`.
 	fn remark_with_event(b: u32, ) -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 8_032_000 picoseconds.
-		Weight::from_parts(8_097_000, 0)
-			// Standard Error: 2
-			.saturating_add(Weight::from_parts(1_455, 0).saturating_mul(b.into()))
+		// Minimum execution time: 5_690_000 picoseconds.
+		Weight::from_parts(15_071_416, 0)
+			// Standard Error: 1
+			.saturating_add(Weight::from_parts(1_387, 0).saturating_mul(b.into()))
 	}
-	/// Storage: System Digest (r:1 w:1)
-	/// Proof Skipped: System Digest (max_values: Some(1), max_size: None, mode: Measured)
-	/// Storage: unknown `0x3a686561707061676573` (r:0 w:1)
-	/// Proof Skipped: unknown `0x3a686561707061676573` (r:0 w:1)
+	/// Storage: `System::Digest` (r:1 w:1)
+	/// Proof: `System::Digest` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
+	/// Storage: UNKNOWN KEY `0x3a686561707061676573` (r:0 w:1)
+	/// Proof: UNKNOWN KEY `0x3a686561707061676573` (r:0 w:1)
 	fn set_heap_pages() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `1485`
-		// Minimum execution time: 4_446_000 picoseconds.
-		Weight::from_parts(4_782_000, 1485)
+		// Minimum execution time: 3_822_000 picoseconds.
+		Weight::from_parts(4_099_000, 1485)
 			.saturating_add(RocksDbWeight::get().reads(1_u64))
 			.saturating_add(RocksDbWeight::get().writes(2_u64))
 	}
-	/// Storage: System Digest (r:1 w:1)
-	/// Proof Skipped: System Digest (max_values: Some(1), max_size: None, mode: Measured)
-	/// Storage: unknown `0x3a636f6465` (r:0 w:1)
-	/// Proof Skipped: unknown `0x3a636f6465` (r:0 w:1)
+	/// Storage: `MultiBlockMigrations::Cursor` (r:1 w:0)
+	/// Proof: `MultiBlockMigrations::Cursor` (`max_values`: Some(1), `max_size`: Some(65550), added: 66045, mode: `MaxEncodedLen`)
+	/// Storage: `System::Digest` (r:1 w:1)
+	/// Proof: `System::Digest` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
+	/// Storage: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
+	/// Proof: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
 	fn set_code() -> Weight {
 		// Proof Size summary in bytes:
-		//  Measured:  `0`
-		//  Estimated: `1485`
-		// Minimum execution time: 84_000_503_000 picoseconds.
-		Weight::from_parts(87_586_619_000, 1485)
-			.saturating_add(RocksDbWeight::get().reads(1_u64))
+		//  Measured:  `142`
+		//  Estimated: `67035`
+		// Minimum execution time: 81_512_045_000 picoseconds.
+		Weight::from_parts(82_321_281_000, 67035)
+			.saturating_add(RocksDbWeight::get().reads(2_u64))
 			.saturating_add(RocksDbWeight::get().writes(2_u64))
 	}
-	/// Storage: Skipped Metadata (r:0 w:0)
-	/// Proof Skipped: Skipped Metadata (max_values: None, max_size: None, mode: Measured)
+	/// Storage: `Skipped::Metadata` (r:0 w:0)
+	/// Proof: `Skipped::Metadata` (`max_values`: None, `max_size`: None, mode: `Measured`)
 	/// The range of component `i` is `[0, 1000]`.
 	fn set_storage(i: u32, ) -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 2_086_000 picoseconds.
-		Weight::from_parts(2_175_000, 0)
-			// Standard Error: 1_056
-			.saturating_add(Weight::from_parts(841_511, 0).saturating_mul(i.into()))
+		// Minimum execution time: 2_074_000 picoseconds.
+		Weight::from_parts(2_137_000, 0)
+			// Standard Error: 879
+			.saturating_add(Weight::from_parts(797_224, 0).saturating_mul(i.into()))
 			.saturating_add(RocksDbWeight::get().writes((1_u64).saturating_mul(i.into())))
 	}
-	/// Storage: Skipped Metadata (r:0 w:0)
-	/// Proof Skipped: Skipped Metadata (max_values: None, max_size: None, mode: Measured)
+	/// Storage: `Skipped::Metadata` (r:0 w:0)
+	/// Proof: `Skipped::Metadata` (`max_values`: None, `max_size`: None, mode: `Measured`)
 	/// The range of component `i` is `[0, 1000]`.
 	fn kill_storage(i: u32, ) -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 2_000_000 picoseconds.
-		Weight::from_parts(2_255_000, 0)
-			// Standard Error: 1_425
-			.saturating_add(Weight::from_parts(662_473, 0).saturating_mul(i.into()))
+		// Minimum execution time: 2_122_000 picoseconds.
+		Weight::from_parts(2_208_000, 0)
+			// Standard Error: 855
+			.saturating_add(Weight::from_parts(594_034, 0).saturating_mul(i.into()))
 			.saturating_add(RocksDbWeight::get().writes((1_u64).saturating_mul(i.into())))
 	}
-	/// Storage: Skipped Metadata (r:0 w:0)
-	/// Proof Skipped: Skipped Metadata (max_values: None, max_size: None, mode: Measured)
+	/// Storage: `Skipped::Metadata` (r:0 w:0)
+	/// Proof: `Skipped::Metadata` (`max_values`: None, `max_size`: None, mode: `Measured`)
 	/// The range of component `p` is `[0, 1000]`.
 	fn kill_prefix(p: u32, ) -> Weight {
 		// Proof Size summary in bytes:
-		//  Measured:  `115 + p * (69 ±0)`
-		//  Estimated: `128 + p * (70 ±0)`
-		// Minimum execution time: 4_189_000 picoseconds.
-		Weight::from_parts(4_270_000, 128)
-			// Standard Error: 2_296
-			.saturating_add(Weight::from_parts(1_389_650, 0).saturating_mul(p.into()))
+		//  Measured:  `129 + p * (69 ±0)`
+		//  Estimated: `135 + p * (70 ±0)`
+		// Minimum execution time: 3_992_000 picoseconds.
+		Weight::from_parts(4_170_000, 135)
+			// Standard Error: 1_377
+			.saturating_add(Weight::from_parts(1_267_892, 0).saturating_mul(p.into()))
 			.saturating_add(RocksDbWeight::get().reads((1_u64).saturating_mul(p.into())))
 			.saturating_add(RocksDbWeight::get().writes((1_u64).saturating_mul(p.into())))
 			.saturating_add(Weight::from_parts(0, 70).saturating_mul(p.into()))
@@ -275,25 +280,25 @@ impl WeightInfo for () {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`
 		//  Estimated: `0`
-		// Minimum execution time: 33_027_000 picoseconds.
-		Weight::from_parts(33_027_000, 0)
-			.saturating_add(Weight::from_parts(0, 0))
-			.saturating_add(RocksDbWeight::get().writes(1))
+		// Minimum execution time: 8_872_000 picoseconds.
+		Weight::from_parts(9_513_000, 0)
+			.saturating_add(RocksDbWeight::get().writes(1_u64))
 	}
 	/// Storage: `System::AuthorizedUpgrade` (r:1 w:1)
 	/// Proof: `System::AuthorizedUpgrade` (`max_values`: Some(1), `max_size`: Some(33), added: 528, mode: `MaxEncodedLen`)
+	/// Storage: `MultiBlockMigrations::Cursor` (r:1 w:0)
+	/// Proof: `MultiBlockMigrations::Cursor` (`max_values`: Some(1), `max_size`: Some(65550), added: 66045, mode: `MaxEncodedLen`)
 	/// Storage: `System::Digest` (r:1 w:1)
 	/// Proof: `System::Digest` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
 	/// Storage: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
 	/// Proof: UNKNOWN KEY `0x3a636f6465` (r:0 w:1)
 	fn apply_authorized_upgrade() -> Weight {
 		// Proof Size summary in bytes:
-		//  Measured:  `22`
-		//  Estimated: `1518`
-		// Minimum execution time: 118_101_992_000 picoseconds.
-		Weight::from_parts(118_101_992_000, 0)
-			.saturating_add(Weight::from_parts(0, 1518))
-			.saturating_add(RocksDbWeight::get().reads(2))
-			.saturating_add(RocksDbWeight::get().writes(3))
+		//  Measured:  `164`
+		//  Estimated: `67035`
+		// Minimum execution time: 85_037_546_000 picoseconds.
+		Weight::from_parts(85_819_414_000, 67035)
+			.saturating_add(RocksDbWeight::get().reads(3_u64))
+			.saturating_add(RocksDbWeight::get().writes(3_u64))
 	}
 }