Snowbridge V2 Pallets

CHANGELOG.md

@@ -112,6 +112,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - [#8021](https://github.com/paritytech/polkadot-sdk/pull/8021): XCMP: use batching when enqueuing inbound messages
     This PR implements batching for the XCMP inbound enqueueing logic, which leads to an about ~75x performance improvement for that specific code.
   - [#9202](https://github.com/paritytech/polkadot-sdk/pull/9202): `apply_authorized_force_set_current_code` does not need to consume the whole block
+- Add Snowbridge V2 pallets, to enable Snowbridge V2 bridging: [polkadot-fellows/runtimes/pull/796](https://github.com/polkadot-fellows/runtimes/pull/796))
 
 ## [1.6.1] 24.06.2025
 

Cargo.toml

@@ -209,10 +209,14 @@ snowbridge-outbound-queue-runtime-api = { version = "0.15.0", default-features =
 snowbridge-outbound-queue-primitives = { version = "0.4.0", default-features = false }
 snowbridge-pallet-ethereum-client = { version = "0.15.0", default-features = false }
 snowbridge-pallet-inbound-queue = { version = "0.15.0", default-features = false }
+snowbridge-pallet-inbound-queue-v2 = { version = "0.4.0", default-features = false }
 snowbridge-pallet-inbound-queue-fixtures = { version = "0.23.0" }
 snowbridge-pallet-ethereum-client-fixtures = { version = "0.23.0" }
 snowbridge-pallet-outbound-queue = { version = "0.15.0", default-features = false }
+snowbridge-pallet-outbound-queue-v2 = { version = "0.4.0", default-features = false }
 snowbridge-pallet-system = { version = "0.15.0", default-features = false }
+snowbridge-pallet-system-v2 = { version = "0.4.0", default-features = false }
+snowbridge-pallet-system-frontend = { version = "0.4.0", default-features = false }
 snowbridge-inbound-queue-primitives = { version = "0.4.0", default-features = false }
 snowbridge-runtime-common = { version = "0.15.0", default-features = false }
 snowbridge-runtime-test-common = { version = "0.17.0" }

integration-tests/emulated/chains/parachains/assets/asset-hub-polkadot/src/lib.rs

@@ -48,6 +48,7 @@ decl_test_parachains! {
 			ForeignAssets: asset_hub_polkadot_runtime::ForeignAssets,
 			PoolAssets: asset_hub_polkadot_runtime::PoolAssets,
 			AssetConversion: asset_hub_polkadot_runtime::AssetConversion,
+			SnowbridgeSystemFrontend: asset_hub_polkadot_runtime::SnowbridgeSystemFrontend,
 		}
 	},
 }

integration-tests/emulated/chains/parachains/bridges/bridge-hub-polkadot/src/lib.rs

@@ -44,6 +44,8 @@ decl_test_parachains! {
 			EthereumSystem: bridge_hub_polkadot_runtime::EthereumSystem,
 			EthereumInboundQueue: bridge_hub_polkadot_runtime::EthereumInboundQueue,
 			EthereumOutboundQueue: bridge_hub_polkadot_runtime::EthereumOutboundQueue,
+			EthereumSystemV2: bridge_hub_polkadot_runtime::EthereumSystemV2,
+			BridgeRelayers: bridge_hub_polkadot_runtime::BridgeRelayers,
 		}
 	},
 }

integration-tests/emulated/tests/bridges/bridge-hub-polkadot/Cargo.toml

@@ -14,6 +14,7 @@ hex-literal = { workspace = true }
 
 # Substrate
 sp-core = { workspace = true, default-features = true }
+sp-io = { workspace = true, default-features = true }
 sp-runtime = { workspace = true, default-features = true }
 frame-support = { workspace = true, default-features = true }
 pallet-balances = { workspace = true, default-features = true }
@@ -26,6 +27,7 @@ xcm = { workspace = true, default-features = true }
 pallet-xcm = { workspace = true, default-features = true }
 xcm-executor = { workspace = true, default-features = true }
 xcm-runtime-apis = { workspace = true, default-features = true }
+xcm-builder = { workspace = true }
 
 # Cumulus
 emulated-integration-tests-common = { workspace = true }
@@ -36,10 +38,12 @@ cumulus-pallet-xcmp-queue = { workspace = true, default-features = true }
 # Bridges
 bp-messages = { workspace = true, default-features = true }
 pallet-bridge-messages = { workspace = true, default-features = true }
+pallet-bridge-relayers = { workspace = true, default-features = true }
 
 # Local
 bp-bridge-hub-polkadot = { workspace = true, default-features = true }
 bridge-hub-common = { workspace = true, default-features = true }
+bp-asset-hub-polkadot = { workspace = true, default-features = true }
 bridge-hub-polkadot-runtime = { workspace = true }
 asset-hub-polkadot-runtime = { workspace = true }
 integration-tests-helpers = { workspace = true }
@@ -48,17 +52,23 @@ polkadot-system-emulated-network = { workspace = true }
 system-parachains-constants = { workspace = true, default-features = true }
 
 # Snowbridge
-snowbridge-beacon-primitives = { workspace = true, default-features = true }
-snowbridge-core = { workspace = true, default-features = true }
-snowbridge-inbound-queue-primitives = { workspace = true, default-features = true }
-snowbridge-pallet-system = { workspace = true, default-features = true }
-snowbridge-pallet-outbound-queue = { workspace = true, default-features = true }
-snowbridge-pallet-inbound-queue-fixtures = { workspace = true }
+snowbridge-core = { workspace = true }
+snowbridge-beacon-primitives = { workspace = true }
+snowbridge-inbound-queue-primitives = { workspace = true }
 snowbridge-outbound-queue-primitives = { workspace = true }
+snowbridge-pallet-inbound-queue = { workspace = true }
+snowbridge-pallet-inbound-queue-fixtures = { workspace = true }
+snowbridge-pallet-inbound-queue-v2 = { workspace = true }
+snowbridge-pallet-outbound-queue = { workspace = true }
+snowbridge-pallet-outbound-queue-v2 = { workspace = true }
+snowbridge-pallet-system = { workspace = true }
+snowbridge-pallet-system-frontend = { workspace = true }
+snowbridge-pallet-system-v2 = { workspace = true }
 
 [features]
 runtime-benchmarks = [
 	"asset-hub-polkadot-runtime/runtime-benchmarks",
+	"bp-asset-hub-polkadot/runtime-benchmarks",
 	"bp-bridge-hub-polkadot/runtime-benchmarks",
 	"bridge-hub-common/runtime-benchmarks",
 	"bridge-hub-polkadot-runtime/runtime-benchmarks",
@@ -71,17 +81,25 @@ runtime-benchmarks = [
 	"pallet-assets/runtime-benchmarks",
 	"pallet-balances/runtime-benchmarks",
 	"pallet-bridge-messages/runtime-benchmarks",
+	"pallet-bridge-relayers/runtime-benchmarks",
 	"pallet-message-queue/runtime-benchmarks",
 	"pallet-xcm/runtime-benchmarks",
 	"parachains-common/runtime-benchmarks",
 	"polkadot-system-emulated-network/runtime-benchmarks",
 	"snowbridge-core/runtime-benchmarks",
 	"snowbridge-inbound-queue-primitives/runtime-benchmarks",
 	"snowbridge-pallet-inbound-queue-fixtures/runtime-benchmarks",
+	"snowbridge-pallet-inbound-queue-v2/runtime-benchmarks",
+	"snowbridge-pallet-inbound-queue-v2/runtime-benchmarks",
+	"snowbridge-pallet-inbound-queue/runtime-benchmarks",
+	"snowbridge-pallet-outbound-queue-v2/runtime-benchmarks",
 	"snowbridge-pallet-outbound-queue/runtime-benchmarks",
+	"snowbridge-pallet-system-frontend/runtime-benchmarks",
+	"snowbridge-pallet-system-v2/runtime-benchmarks",
 	"snowbridge-pallet-system/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
 	"system-parachains-constants/runtime-benchmarks",
+	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",
 	"xcm-runtime-apis/runtime-benchmarks",
 	"xcm/runtime-benchmarks",

integration-tests/emulated/tests/bridges/bridge-hub-polkadot/src/tests/asset_transfers.rs

@@ -170,7 +170,7 @@ fn send_dot_usdt_and_weth_from_asset_hub_polkadot_to_asset_hub_kusama() {
 	let bridged_weth_at_ah = weth_at_asset_hubs();
 	let bridged_weth_at_ah_latest: Location = bridged_weth_at_ah.clone();
 
-	let snowbridge_sovereign: AccountId =
+	let ethereum_sovereign: AccountId =
 		EthereumLocationsConverterFor::<[u8; 32]>::convert_location(&Location::new(
 			2,
 			[GlobalConsensus(EthereumNetwork::get())],
@@ -186,7 +186,7 @@ fn send_dot_usdt_and_weth_from_asset_hub_polkadot_to_asset_hub_kusama() {
 		amount * 2,
 	);
 	AssetHubPolkadot::mint_foreign_asset(
-		<AssetHubPolkadot as Chain>::RuntimeOrigin::signed(snowbridge_sovereign),
+		<AssetHubPolkadot as Chain>::RuntimeOrigin::signed(ethereum_sovereign),
 		bridged_weth_at_ah.clone(),
 		sender.clone(),
 		MIN_ETHER_BALANCE,

integration-tests/emulated/tests/bridges/bridge-hub-polkadot/src/tests/mod.rs

@@ -21,6 +21,13 @@ mod claim_assets;
 mod register_bridged_assets;
 mod send_xcm;
 mod snowbridge;
+mod snowbridge_common;
+mod snowbridge_v2_config;
+mod snowbridge_v2_inbound;
+mod snowbridge_v2_inbound_to_kusama;
+mod snowbridge_v2_outbound;
+mod snowbridge_v2_outbound_edge_case;
+mod snowbridge_v2_outbound_from_kusama;
 mod teleport;
 
 pub(crate) fn asset_hub_kusama_location() -> Location {