This release contains the changes from polkadot-stable2412-3 to polkadot-stable2412-4.
ℹ️ Please note:
This is a patch release for the latest stable version: stable2412. If your nodes are already running on this version, you can consider upgrading to it to have the latest fixes.
The tag corresponding to the current patch release polkadot-stable2412-4 and matching the old pattern will be available under polkadot-v1.17.4.
Changelog
Changelog for Node Dev
ℹ️ These changes are relevant to: Those who build around the client side code. Alternative client builders, SMOLDOT, those who consume RPCs. These are people who are oblivious to the runtime changes. They only care about the meta-protocol, not the protocol itself.
[#7866]: Make litep2p the default backend in Kusama
A new trait IdentifyNetworkBackend is introduced for the polkadot-service. The purpose of the trait is to specify the default network backend for individual chains. For Kusama based chains, the default is now litep2p. For other chains, the default remains unchanged to libp2p.
The network backend field of the network configuration is made optional to accommodate for this change.
[#7075]: Snowbridge - Ethereum Electra Upgrade Support
Adds support for the Ethereum Electra hard-fork in the Ethereum light client. Maintains backwards compatibility with the current Deneb hard-fork.
Relayers should update to the latest binary to support sending Electra consensus updates.
Changelog for Runtime Dev
ℹ️ These changes are relevant to: All of those who rely on the runtime. A parachain team that is using a pallet. A DApp that is using a pallet. These are people who care about the protocol (WASM, not the meta-protocol (client).)
[#7856]: Fix XCM decoding inconsistencies
This PR adjusts the XCM decoding logic in order to deduplicate the logic used for decoding v3::Xcm, v4::Xcm and v5::Xcm and also to use decode_with_depth_limit() in some more places.
[#7968]: Fix XCM Barrier Rejection Handling to Return Incomplete with Weight
This PR addresses an issue with the handling of message execution when blocked by the barrier. Instead of returning an Outcome::Error, we modify the behaviour to return Outcome::Incomplete, which includes the weight consumed up to the point of rejection and the error that caused the blockage.
This change ensures more accurate weight tracking during message execution, even when interrupted. It improves resource management and aligns the XCM executor’s behaviour with better error handling practices.
[#7899]: Remove execute_with_origin implementation in the XCM executor
The XCM executor will not support the ExecuteWithOrigin instruction from the start.
It might be added later when more time can be spent on it.
[#7921]: Use non-native token to benchmark on asset hub
Asset Hub was using the native token for benchmarking xcm instructions. This is not the best since it's cheaper than using something in pallet-assets for example.
Had to remove some restrictive checks from pallet-xcm-benchmarks.
[#7738]: Introduce filter to restrict accounts from staking
Introduce an associated fn filter in pallet-staking to restrict some accounts from staking.
This is useful for restricting certain accounts from staking, for example, accounts staking via pools.
[#7760]: Dynamic uncompressed code size limit
Deprecates node constant VALIDATION_CODE_BOMB_LIMIT and introduces validation_code_bomb_limit runtime API that computes the maximum uncompressed code size as the maximum code size multiplied by a compression ratio of 10.
[#7694]: XCM: Process PayFees only once
The PayFees instruction should only ever be used once. If it's used more than once, it's just a noop.
[#8051]: XCM: Some weight fixes for InitiateTransfer
- Added some base weight for
InitiateTransferno matter what. - Short circuit on
AllCounted(0)to not have to go through all fungibles.
[#7689]: Fix DryRunApi client-facing XCM versions
Fixes #7413
This PR updates the DryRunApi. The signature of the dry_run_call is changed, and the XCM version of the return values of dry_run_xcm now follows the version of the input XCM program.
It also fixes xcmp-queue's Router's clear_messages: the channel details first_index and last_index are reset when clearing.
[#7894]: [stable2412] pallet-revive: remove related crates from umbrella
Fixes polkadot-sdk building for stable2412. It removes its dependency on pallet-revive* crates, which aren't publishable as part of stable2412 release & patch releases. Minor updates were brought to a bunch of other crates to allow their compilation in test profile, to enable granular testing and rapid feedback of crates for next stable2412 patch releases.
Changelog for Node Operator
ℹ️ These changes are relevant to: Those who don't write any code and only run code.
[#7866]: Make litep2p the default backend in Kusama
This PR makes the litep2p backend the default network backend in Kusama, but also for system chains.
We performed a gradual rollout in Kusama by asking validators to manually switch to litep2p.
The rollout went smoothly, with 250 validators running litep2p without issues. This PR represents the next step in testing the backend at scale.
Rust compiler versions
This release was built and tested against the following versions of rustc.
Other versions may work.
- Rust Stable:
"1.81.0"
Docker images
The docker images for the polkadot node binary and the polkadot-parachain binary can be found at Docker hub (will be available a few minutes after the release has been published):
You may also pull it with:
docker pull parity/polkadot:stable2412-4
or
docker pull parity/polkadot-parachain:stable2412-4