Remove Executed Migrations

runtime/common/src/lib.rs

@@ -27,7 +27,6 @@ pub mod impls;
 pub mod paras_registrar;
 pub mod paras_sudo_wrapper;
 pub mod purchase;
-pub mod session;
 pub mod slot_range;
 pub mod slots;
 pub mod traits;

runtime/kusama/src/lib.rs

@@ -1521,40 +1521,12 @@ impl Get<Perbill> for NominationPoolsMigrationV4OldPallet {
 ///
 /// This contains the combined migrations of the last 10 releases. It allows to skip runtime
 /// upgrades in case governance decides to do so. THE ORDER IS IMPORTANT.
-pub type Migrations = (
-	migrations::V0940,
-	migrations::V0941,
-	migrations::V0942,
-	migrations::V0943,
-	migrations::Unreleased,
-);
+pub type Migrations = (migrations::Unreleased,);
 
 /// The runtime migrations per release.
 #[allow(deprecated, missing_docs)]
 pub mod migrations {
 	use super::*;
-	use frame_support::traits::{GetStorageVersion, OnRuntimeUpgrade, StorageVersion};
-
-	pub type V0940 = (
-		pallet_nomination_pools::migration::v4::MigrateToV4<
-			Runtime,
-			NominationPoolsMigrationV4OldPallet,
-		>,
-		pallet_nomination_pools::migration::v5::MigrateToV5<Runtime>,
-	);
-	pub type V0941 = (); // Node only release - no migrations.
-	pub type V0942 = (
-		parachains_configuration::migration::v5::MigrateToV5<Runtime>,
-		pallet_offences::migration::v1::MigrateToV1<Runtime>,
-		runtime_common::session::migration::ClearOldSessionStorage<Runtime>,
-	);
-
-	pub type V0943 = (
-		SetStorageVersions,
-		// Remove UMP dispatch queue <https://github.com/paritytech/polkadot/pull/6271>
-		parachains_configuration::migration::v6::MigrateToV6<Runtime>,
-		ump_migrations::UpdateUmpLimits,
-	);
 
 	/// Unreleased migrations. Add new ones here:
 	pub type Unreleased = (
@@ -1567,46 +1539,6 @@ pub mod migrations {
 		pallet_im_online::migration::v1::Migration<Runtime>,
 		parachains_configuration::migration::v7::MigrateToV7<Runtime>,
 	);
-
-	/// Migrations that set `StorageVersion`s we missed to set.
-	pub struct SetStorageVersions;
-
-	impl OnRuntimeUpgrade for SetStorageVersions {
-		fn on_runtime_upgrade() -> Weight {
-			// The `NisCounterpartBalances` pallet was added to the chain after/with the migration.
-			// So, the migration never needed to be executed, but we also did not set the proper `StorageVersion`.
-			let storage_version = NisCounterpartBalances::on_chain_storage_version();
-			if storage_version < 1 {
-				StorageVersion::new(1).put::<NisCounterpartBalances>();
-			}
-
-			// Was missed as part of: `runtime_common::session::migration::ClearOldSessionStorage<Runtime>`.
-			let storage_version = Historical::on_chain_storage_version();
-			if storage_version < 1 {
-				StorageVersion::new(1).put::<Historical>();
-			}
-
-			RocksDbWeight::get().reads_writes(2, 2)
-		}
-	}
-}
-
-/// Helpers to configure the ump migrations.
-pub mod ump_migrations {
-	use runtime_parachains::configuration::migration_ump;
-
-	pub const MAX_UPWARD_QUEUE_SIZE: u32 = 4 * 1024 * 1024;
-	pub const MAX_UPWARD_QUEUE_COUNT: u32 = 699050;
-	pub const MAX_UPWARD_MESSAGE_SIZE: u32 = (1 << 16) - 5; // Checked in test `max_upward_message_size`.
-	pub const MAX_UPWARD_MESSAGE_NUM_PER_CANDIDATE: u32 = 128;
-
-	pub type UpdateUmpLimits = migration_ump::latest::ScheduleConfigUpdate<
-		super::Runtime,
-		MAX_UPWARD_QUEUE_SIZE,
-		MAX_UPWARD_QUEUE_COUNT,
-		MAX_UPWARD_MESSAGE_SIZE,
-		MAX_UPWARD_MESSAGE_NUM_PER_CANDIDATE,
-	>;
 }
 
 /// Unchecked extrinsic type as expected by this runtime.

runtime/kusama/src/tests.rs

@@ -146,11 +146,3 @@ fn nominator_limit() {
 fn call_size() {
 	RuntimeCall::assert_size_under(230);
 }
-
-#[test]
-fn max_upward_message_size() {
-	assert_eq!(
-		ump_migrations::MAX_UPWARD_MESSAGE_SIZE,
-		pallet_message_queue::MaxMessageLenOf::<Runtime>::get()
-	);
-}

runtime/parachains/src/configuration.rs

@@ -37,7 +37,6 @@ mod tests;
 mod benchmarking;
 
 pub mod migration;
-pub mod migration_ump;
 
 pub use pallet::*;
 

runtime/parachains/src/configuration/migration.rs

@@ -16,8 +16,5 @@
 
 //! A module that is responsible for migration of storage.
 
-use primitives::ExecutorParams;
-
-pub mod v5;
 pub mod v6;
 pub mod v7;