Companion for substrate#9878 (#3949)

* Companion for substrate#9878

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* update substrate

Co-authored-by: thiolliere <gui.thiolliere@gmail.com>

polkadot/runtime/kusama/src/lib.rs

@@ -51,7 +51,7 @@ use frame_support::{
 	construct_runtime, match_type, parameter_types,
 	traits::{
 		Contains, Everything, InstanceFilter, KeyOwnerProofSystem, LockIdentifier, Nothing,
-		PrivilegeCmp,
+		OnRuntimeUpgrade, PrivilegeCmp,
 	},
 	weights::Weight,
 	PalletId, RuntimeDebug,
@@ -1595,11 +1595,32 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPallets,
-	(),
+	(SessionHistoricalPalletPrefixMigration,),
 >;
 /// The payload being signed in the transactions.
 pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;
 
+/// Migrate session-historical from `Session` to the new pallet prefix `Historical`
+pub struct SessionHistoricalPalletPrefixMigration;
+
+impl OnRuntimeUpgrade for SessionHistoricalPalletPrefixMigration {
+	fn on_runtime_upgrade() -> frame_support::weights::Weight {
+		pallet_session::migrations::v1::migrate::<Runtime, Historical>()
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn pre_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::pre_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn post_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::post_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+}
+
 #[cfg(not(feature = "disable-runtime-api"))]
 sp_api::impl_runtime_apis! {
 	impl sp_api::Core<Block> for Runtime {