Changelog

Full Changelog

Features

• allow block import after NUMBER_OF_COLUMNS / 2 (#8818) (@wemeetagain)
• implement ePBS gossip topics (#8616) (@ensi321)
• async block import persistence (#8784) (@wemeetagain)
• add API and logs to display monitored validator indices (#8702) (@dik654)
• make builders non-validating staked actors (#8759) (@ensi321)
• enable specref features & remove unnecessary spec items (#8788) (@jtraglia)
• add spec references, a mapping of spec to implementation (#8778) (@jtraglia)
• support single db batch operation (#8268) (@nazarhussain)
• api: add runtime direct peer management endpoints (#8853) (@lodekeeper)
• api: add custody info endpoint for PeerDAS (#8826) (@lodekeeper)
• network: add directPeers support for GossipSub (#8831) (@catwith1hat)

Bug Fixes

• consistently check block input cache before checking hot db for blocks (#8823) (@nflaig)
• remove index label from validator_monitor_prev_epoch_on_chain_balance metric (#8824) (@lodekeeper)
• make column reconstruction delay a function of slot time (#8827) (@lodekeeper)
• remove docker build stage to rebuild native dependencies (#8819) (@nflaig)
• revert changes to getPendingBalanceToWithdraw (#8812) (@ensi321)
• handle slot 0 correctly in data column sidecar RPC handler (#8783) (@qu0b)
• avoid BeaconState commit() clone() in beacon-node (#8728) (@twoeths)
• pass fork info used to compute domain to remote signer (#8776) (@nflaig)
• return reward delta instead of validator balance as sync committee rewards (#8774) (@nflaig)
• api: allow duplicate columns/blobs in publishBlock for multi-BN setups (#8849) (@lodekeeper)
• network: handle invalid peer public key in onLibp2pPeerConnect (#8829) (@lodekeeper)
• docker: reinstall dependencies on target platform (#8816) (@wemeetagain)

Performance

• optimize byteArrayEquals with hybrid loop/Buffer.compare (#8846) (@lodekeeper)

Refactoring

• update signature sets to use validator indices instead of pubkeys (#8803) (@wemeetagain)
• getBlockSlotState() (#8806) (@twoeths)
• generalize state repositories (#8732) (@twoeths)
• query ShufflingCache for shuffling data (#8743) (@twoeths)
• remove build() and async shuffling calculation (#8688) (@guha-rahul)
• simplify assertValidAttesterSlashing() assertValidProposerSlashing() (#8744) (@twoeths)
• simplify isValidBlsToExecutionChange() (#8746) (@twoeths)

Continuous Integration

• disable bun unit tests in code (#8851) (@philknows)

Tests

• add e2e test to ensure chainConfig values match consensus-specs (#8859) (@lodekeeper)
• increase timeouts for flaky E2E tests on slow CI (#8860) (@lodekeeper)
• increase lightclient e2e test timeout to prevent flaky failures (#8841) (@lodekeeper)
• correct lightclient committee root test for electra (#8825) (@lodekeeper)
• allow custom db path and resumeFromDb in getDevBeaconNode (#8742) (@vedant-asati)

Maintenance

• drop support for node v22 (#8872) (@nflaig)
• upgrade fastify to 5.7.4 (#8842) (@lodekeeper)
• cleanup bigint buffer utils (#8863) (@lodekeeper)
• rename adhoc docker workflow to manual and reuse docker.yml (#8862) (@lodekeeper)
• add manually triggered workflow for ad-hoc Docker image tagging (#8840) (@lodekeeper)
• update bigint-buffer2 to v1.0.5 and re-enable bun CI (#8855) (@lodekeeper)
• fix lint warnings (#8854) (@lodekeeper)
• add .venv and checkpoint_states to .gitignore (#8852) (@lodekeeper)
• remove in-memory state caches (#8813) (@twoeths)
• remove stale references to merge block (#8834) (@nflaig)
• use native arm64 runners instead of qemu for docker builds (#8821) (@nflaig)
• replace bigint-buffer (#8789) (@rnfairchild)
• avoid passing CachedBeaconStateGloas to state-transition apis from beacon-node (#8833) (@twoeths)
• merge v1.39.1 back to unstable (#8820) (@philknows)
• fix lint warnings (#8815) (@nflaig)
• add axios to root package.json to fix downloading dashboards (#8807) (@nflaig)
• add assertions to check prior withdrawals against limit (#8802) (@nflaig)
• fix deploy docs workflow (#8799) (@nflaig)
• merge stable v1.39.0 back to unstable (#8798) (@philknows)
• improve archiveBlocks log (#8795) (@twoeths)
• skip Map benchmarks (#8787) (@twoeths)
• skip snappy benchmarks (#8786) (@twoeths)
• update test current file launch config to work with pnpm (#8775) (@nflaig)
• remove getAttestationsForBlockPreElectra (#8721) (@twoeths)
• deps: bump qs from 6.11.1 to 6.14.1 (#8724) (@dependabot[bot])
• deps: bump js-yaml from 4.1.0 to 4.1.1 (#8733) (@dependabot[bot])
• deps: bump axios from 1.8.2 to 1.12.0 (#8681) (@dependabot[bot])
• deps: bump systeminformation from 5.23.8 to 5.27.14 (#8734) (@dependabot[bot])

Documentation

• add AGENTS.md for AI coding assistants (#8844) (@lodekeeper)
• clarify release note step (#8800) (@philknows)