diff --git a/polkadot/runtime/rococo/README.md b/polkadot/runtime/rococo/README.md
index bc47556792..0f35665ca1 100644
--- a/polkadot/runtime/rococo/README.md
+++ b/polkadot/runtime/rococo/README.md
@@ -1,11 +1,11 @@
-# Rococo: v1
+# Rococo: v2.1
 
 Rococo is a testnet runtime with no stability guarantees.
 
-## How to run
+## How to run `rococo-local`
 
-> TODO: figure out how to run this properly.
+The [Cumulus Tutorial](https://docs.substrate.io/tutorials/v3/cumulus/start-relay/) details building, starting, and testing `rococo-local` and parachains connecting to it.
 
-### Alice
+## How to register a parachain on the Rococo testnet
 
-`cargo run --release -- --alice --tmp --validator --chain rococo-local`
+The [parachain registration process](https://docs.substrate.io/tutorials/v3/cumulus/rococo/) on the public Rococo testnet is also outlined.
diff --git a/polkadot/runtime/rococo/src/lib.rs b/polkadot/runtime/rococo/src/lib.rs
index be7c685a7f..f459ca5975 100644
--- a/polkadot/runtime/rococo/src/lib.rs
+++ b/polkadot/runtime/rococo/src/lib.rs
@@ -24,7 +24,7 @@ use authority_discovery_primitives::AuthorityId as AuthorityDiscoveryId;
 use beefy_primitives::{crypto::AuthorityId as BeefyId, mmr::MmrLeafVersion};
 use frame_support::{
 	construct_runtime, parameter_types,
-	traits::{Contains, InstanceFilter, KeyOwnerProofSystem, OnRuntimeUpgrade},
+	traits::{Contains, InstanceFilter, KeyOwnerProofSystem},
 	PalletId,
 };
 use frame_system::EnsureRoot;
@@ -148,50 +148,10 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPalletsWithSystem,
-	(SessionHistoricalModulePrefixMigration, CrowdloanIndexMigration),
 >;
 /// The payload being signed in transactions.
 pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;
 
-// Migration for crowdloan pallet to use fund index for account generation.
-pub struct CrowdloanIndexMigration;
-impl OnRuntimeUpgrade for CrowdloanIndexMigration {
-	fn on_runtime_upgrade() -> frame_support::weights::Weight {
-		crowdloan::migration::crowdloan_index_migration::migrate::<Runtime>()
-	}
-
-	#[cfg(feature = "try-runtime")]
-	fn pre_upgrade() -> Result<(), &'static str> {
-		crowdloan::migration::crowdloan_index_migration::pre_migrate::<Runtime>()
-	}
-
-	#[cfg(feature = "try-runtime")]
-	fn post_upgrade() -> Result<(), &'static str> {
-		crowdloan::migration::crowdloan_index_migration::post_migrate::<Runtime>()
-	}
-}
-
-/// Migrate session-historical from `Session` to the new pallet prefix `Historical`
-pub struct SessionHistoricalModulePrefixMigration;
-
-impl OnRuntimeUpgrade for SessionHistoricalModulePrefixMigration {
-	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(())
-	}
-}
-
 impl_opaque_keys! {
 	pub struct SessionKeys {
 		pub grandpa: Grandpa,