Release notes

This release focuses on node robustness, Flat DB durability — alongside the eth/71 wire protocol, a reworked discovery stack, a large JSON-RPC features-and-correctness batch, continued Block-level Access Lists (EIP-7928) maturation, and a broad round of EVM, precompile, and state performance work.

OP Karst reminder: the OP Karst hardfork (shipped in 1.38.1 and included here) activates on OP Mainnet: Wed, Jul 8, 2026 at 16:00:01 UTC. OP Stack operators must be on 1.38.1 or later before then.

Overview

Full diff: https://github.com/NethermindEth/nethermind/compare/1.38.1…1.39.0

337 changes since 1.38.1. Highlights include restart-safety fixes for header sync and pivot selection, a Flat DB durability overhaul, the eth/71 wire protocol, a rework of discv4 discovery, SSZ-REST transport for the Engine API, eight new JSON-RPC methods with a large correctness batch, EIP-7928 (BALs) devnet-7 support with major performance work, EraE fixes, and chain-specific improvements for XDC, Taiko, Optimism, and Arbitrum.

Highlights

Sync & restart safety

• Recover header sync after a lost chain level on unclean shutdown (#11994, fixes #8029)
• Unwedge UpdatingPivot for nodes restarted before the first pivot update (#11995)
• Flush all column families in ColumnsDb.Flush — makes column-DB writes (incl. Flat DB) durable across restarts (#12223, fixes #11993)
• Refresh snap pivot instead of punishing the only peer (#11569, fixes #6803); support infinite pivot-update attempts via 1 (#11600, fixes #5992)
• Fix shutdown race in SnapProvider (#11807); accept receipts with zero bloom from peers (#11743); prevent negative RequestSize crash when the beacon pivot advances mid-sync (#11478)
• New Sync.StaticSnapPivot option for fixed-pivot snap sync from a frozen peer (#11943)

Flat DB (experimental, opt-in) durability & hardening

• Crash-durable snap finalize with a cheap restart wipe (#11997); preserve format markers when clearing the flat DB (#11996)
• Force-persist the head-reachable fork instead of an arbitrary one (#11967); persistence cache (#12035); prune orphaned non-canonical snapshots on persist (#11739)
• RLP-wrap storage slot values behind a versioned flag (#11909) with legacy-DB detection (#11975); improved state-backend compatibility and auto-detection (#11911, #11404)
• Stagger compaction per instance (#11756) with a CompactionOffset config to pin the schedule (#11958)

Networking & discovery

• eth/71 wire protocol (#10844); eth/70 hardening (#11456, #11615, #11754); eth/69 BlockRangeUpdate validation (#11796)
• discv4 rework (#8616) and discovery now defaults to V4 (#11614); faster discv4 timeout handling (#11859)
• Disconnect peers on unknown protocol message type (#11266); reduced per-message and per-peer allocations across Eth, Snap, and RLPx (#11639)

JSON-RPC

• New methods: eth_getHeaderByHash/eth_getHeaderByNumber (#11531), eth_getRawTransactionByBlockHashAndIndex/eth_getRawTransactionByBlockNumberAndIndex/eth_sendRawTransactionSync (#11521), eth_signTransaction (#11517), eth_baseFee (#11522), debug_intermediateRoots (#11524), eth_capabilities (#11438), proof_call (#11732), proof_getProofWithMeta (#11498)
• Streaming responses for debug_* and trace_* (#11693, #11755, #11781) with a synchronous-wait fix (#12006)
• Correctness batch: eth_estimateGas zero/revert semantics (#11780, #11783), reject EIP-1898 blockHash+blockNumber (#11777), reject oversized blob calls (#11782), eth_simulateV1 fixes (#11506, #11665, #11841), eth_createAccessList reverted-frame accesses (#11431), omit non-spec error field from receipts (#11454), zero hashes for absent eth_getProof accounts (#11912)
• Route eth_call through a shareable tx-processor pool (#11548); drain in-flight requests before disposing databases on shutdown (#11845)

Engine API

• SSZ-REST transport (#11301) with Accept-negotiation fix (#11856) and capabilities-warning fix (#12176)
• Fix forkchoice validation order (#11681); validate FCU safe/finalized by ancestry when main-chain markers are outdated (#11746); guard against null safe/finalized hash (#12110)
• Bound dangling block-cache growth (#11426); capture bad blocks at pre-process rejection stages (#11696)

Block-level Access Lists (EIP-7928)

• BAL devnet 6 and devnet 7 support (#11436, #11561) incl. the EIP-8037 intrinsic-gas cap (#11635, #11579)
• Network encoding fix (#11950), RLP fix (#11861), validation refactor (#11878), activation only when needed (#11795)
• Performance series: verify-only fast path (#11659), account-presence bitmap (#11661), single-pass build (#11676), reduced recording overhead on warm reads (#11905), allocation cuts (#11702, #11725)

Performance

• Fast ETH-transfer execution path (#11804); TrieWarmer reworked onto ThreadPool (#11848); tightened CALL hot path with EIP-7702 delegation-to-precompile fix (#11547)
• Precompiles: BN254 pairing optimizations (#11916, #11888), BLS G1MSM decoding (#11889), per-thread RIPEMD-160 (#11890), ModExp int32 overflow fix (#11692)
• State: storage-trie warm-up driven from writes (#11409), RocksDB native memory reported to GC (#11453), lock-free ChainHeadSpecProvider (#11618)

Chain-specific

• XDC: XDPoS RPC module (#10553), rewards upgrade (#11016), HotStuff and QC-manager refactors (#11711, #11644), snapshot recovery (#11602), discovery (#11527), sync fixes
• Taiko: Unzen scheduled on Taiko Hoodi (#11977) with zk-gas recalibrations (#11749, #11896, #11940); beacon-sync deadlock fix (#11648); engine payload aligned with alethia-reth (#11776)
• Optimism: OP Karst fork (#11917) and Superchain registry refresh with Base removal (#11655, #11852) — already shipped to OP operators in 1.38.1
• Arbitrum groundwork: ArbOS 60 multi-gas constraints (#10765) and EVM extension points
• zkEVM/stateless: migration to zkVM/SSZ standards (#11481, #11625), EEST stateless-execution tests (#11908), intrinsic zk gas (#11584)

Other notable

• EraE (EIP-4444) fixes and spec updates (#11727, #11771, #11772, #11928)
• Structured console logging via -logging-format (#11610); non-default config values shown at startup (#11523); health UI behind a reverse proxy (#11946)
• StatsAnalyzer plugin (#7345, #11766)

⚠️ Breaking / behavior changes

• Legacy BloomStorage removed (#11906) — the bloom-filter index database and its configuration are gone; log queries rely on the current log-index path.
• Discovery defaults to V4 (#11614).
• Per-method JSON-RPC metrics are now enabled by default (#11494).
• Non-spec error field removed from transaction receipts in JSON-RPC responses (#11454).
• IPC socket is restricted to owner-only permissions when configured (#9449).

What’s Changed

• Add NETH004 analyzer banning ConcurrentDictionary.Keys/.Values by @asdacap in #11462

• fix: prevent negative RequestSize crash when beacon pivot destination advances mid-sync by @asdacap in #11478

• feat(zkevm): Migrate to zkVM standards by @rubo in #11481

• XDC - Rewards Upgrade by @cicr99 in #11016

• feat(zkevm): Enable BAL in stateless execution by @rubo in #11505

• test: regression tests for #9002 - barrier decrease after partial sync leaves feed stuck by @divi2806 in #11483

• RLP tx decoding fixes by @alexb5dh in #11496

• perf: report BloomFilter unmanaged allocation to GC by @asdacap in #11503

• fix: enable EnablePerMethodMetrics by default by @deffrian in #11494

• chore: Update dependencies by @benaadams in #11512

• eth/71 by @flcl42 in #10844

• fix: drop buffered frame bytes on FrameQueue.Clear by @grubbyTimes in #11510

• perf(state): drive storage trie warm-up from writes via HintSet by @asdacap in #11409

• feat: BAL recorder plugin — record and replay block access lists for prewarming benchmarks by @asdacap in #11276

• fix(ReceiptForRpc): omit non-spec error field from receipt JSON-RPC responses by @manusw7 in #11454

• fixed half-empty trace result by @DarkLord017 in #11466

• XDC Fix sync by @batrr in #11509

• Improve eth/70 checks by @flcl42 in #11456

• Minor fixes from AI audit by @alexb5dh in #11406

• fix: Fix dependency caching by @rubo in #11499

• Bal devnet 6 by @benaadams in #11436

• fix: stabilize ParallelUnbalancedWork fault propagation + flaky engine tests by @LukaszRozmej in #11534

• Eliminate ForcedNumberConversion boxing on set by @benaadams in #11536

• RPC: add eth_getHeaderByHash, eth_getHeaderByNumber by @svlachakis in #11531

• Return remainder buffer to pool in KeccakHash.UpdateFinalTo by @benaadams in #11532

• Bump up the version to 1.39.0-unstable by @core-repository-dispatch-app [bot] in #11502

• fix(test): relax For_WhenWorkerFaults bound to range/2 for [no-intrinsics] by @LukaszRozmej in #11537

• docs(agents): self-documenting code +

  / guidance by @LukaszRozmej in #11544

• New pivot for XDC mainnet by @ak88 in #11528

• ci: split build from test to lower peak memory; keep swap by @benaadams in #11549

• feat(merge): add SSZ-REST transport for Engine-API by @Dyslex7c in #11301

• Make RefundOnContractCollision overridable for Arbitrum plugin needs by @wurdum in #11554

• docs(agents): guideline for avoiding test duplication by @LukaszRozmej in #11546

• fix: PoW re-sync downloads already processed blocks by @batrr in #11514

• fix: charge spawn estimate for CREATE/CREATE2 post-trace bail by @Gohnnyman in #11555

• Gate batch lookup by network by @jmadibekov in #11556

• Workflow for auto update XDC pivots by @ak88 in #11545

• ci: add nightly Docker image build by @kamilchodola in #11559

• Extra null check for V1 genesis by @ak88 in #11533

• perf(evm): tighten CALL hot path; fix EIP-7702 delegation-to-precompile semantics by @benaadams in #11547

• RPC: add eth_getRawTransactionByBlockHashAndIndex & eth_getRawTransactionByBlockNumberAndIndex & eth_sendRawTransactionSync by @svlachakis in #11521

• XDC Discovery by @batrr in #11527

• feat(config): show non-default values on startup by @obchain in #11523

• fix(eth_simulateV1): preserve custom block header type by @BZO95 in #11506

• fix(eth_createAccessList): preserve reverted-frame accesses and exclude precompiles by @manusw7 in #11431

• Minor fixes from AI audit #2 by @alexb5dh in #11563

• XDC Fix sync by @batrr in #11562

• test: stabilize getPayloadV1 improving-blocks and Simple_test_sync by @LukaszRozmej in #11568

• Handle IPAddress JSON by @flcl42 in #11571

• Bal devnet 7 by @benaadams in #11561

• fix(rpc): return unavailable for missing trie nodes by @BZO95 in #11564

• fix: stack overflow in debug_trace by @deffrian in #11487

• RPC: add eth_signTransaction by @svlachakis in #11517

• ci: add fork-author guard to evm-opcode-benchmark-diff workflow by @bshastry in #11576

• eth_sign improvemetns & eth_account is implemented flag fix by @svlachakis in #11574

• Update .NET dependencies to 10.0.8 by @benaadams in #11581

• fix: eth62 queue on disconnect by @batrr in #11572

• perf(jsonrpc): route eth_call through shareable tx processor pool by @svlachakis in #11548

• chore: Update Dockerfiles by @core-repository-dispatch-app [bot] in #11582

• Align EIP-8037 gas accounting with BAL tests v7.1.0 by @benaadams in #11579

• Update BAL pyspec fixtures to v7.1.1 by @benaadams in #11595

• eth_signTransaction eliminate allocations & improvements by @svlachakis in #11587

• Activate Unzen on Taiko Hoodi by @jmadibekov in #11601

• Absent system acc is not created on touch by @flcl42 in #11575

• Make InstructionSelfDestruct public to be reused in Arbitrum by @wurdum in #11605

• Fork override trace block by @DarkLord017 in #11493

• fix: Remove redundant target framework by @rubo in #11612

• Make AddSelfDestructLog available for the use in Arbitrum plugin by @wurdum in #11613

• Fix eth_syncing at beacon sync pivot by @jmadibekov in #11594

• feat(rpc): add debug_intermediateRoots by @0xDevNinja in #11524

• feat(eth-rpc): implement eth_baseFee, returning next block base fee by @wjmelements in #11522

• fix(trace): evaluate TraceStore filter fallback eagerly by @BZO95 in #11583

• fix(snap-sync): refresh pivot instead of punishing the only peer (#6803) by @0xDevNinja in #11569

• feat(sync): support infinite pivot-update attempts via -1 (#5992) by @0xDevNinja in #11600

• feat: intrinsic zk gas by @Gohnnyman in #11584

• Default Discovery to V4 by @benaadams in #11614

• fix(flat-db): skip ImportFlatDb when pruning trie state lacks head root by @asdacap in #11422

• feat(init): auto-detect active state backend at startup by @asdacap in #11404

• Add NETH005 analyzer: redundant Span

  .ToArray() at call sites by @asdacap in #11464

• Add new default for gnosis and gnosis archive config by @stdevMac in #11269

• Fix sync actions by @stdevMac in #11127

• add checks for empty auth and create contract for 7702 by @DarkLord017 in #11606

• Guard subscription args length before JSON re-parsing by @Keemosty12 in #11637

• Auto-update fast sync settings by @core-repository-dispatch-app [bot] in #11632

• perf(blockchain): make ChainHeadSpecProvider lock-free by @obchain in #11618

• Reduce per-message and per-peer allocations across Eth, Snap, RLPx, and sort hot paths by @benaadams in #11639

• Update default gas limit for xdc by @ak88 in #11628

• Enable Zisk 0.18 support by @maximmenshikov in #11645

• fix(ci): Disable .NET package caching by @rubo in #11653

• Merge.Plugin: make testing_commitBlockV1 txRlps nullable by @MysticRyuujin in #11649

• perf(evm): pool destroy-list buffer in TransactionProcessor by @LukaszRozmej in #11657

• fix(zkevm): Revise G2 decoding check by @rubo in #11660

• fix(zkevm): Fix legacy receipt storage registration by @rubo in #11662

• fix(trie test): de-flake Will_Persist_ReCommittedPersistedNode_FromCommitBuffer by @LukaszRozmej in #11650

• RPC: add blob checks in estimation by @DarkLord017 in #11630

• Optimize Optimism receipt lookup in block RPC by @apetro2 in #11622

• fix(rpc): emit spec message for eth_simulateV1 -38020 by @0xDevNinja in #11665

• fix: zk-gas validation by @Gohnnyman in #11666

• fix(devnet-7): reject txs exceeding EIP-8037 intrinsic gas cap; skip BAL no-op code by @benaadams in #11635

• Bal devnet 7 benchmarks by @Marchhill in #11573

• feat: unzen hoodi removed by @Gohnnyman in #11682

• Fix Taiko sync deadlock after first beacon-sync by @jmadibekov in #11648

• feat: upstream changes for ArbOS 60 multi-gas constraints by @AnkushinDaniil in #10765

• Stats Analyzer Plugin by @SiddharthV1 in #7345

• perf(bal): verify-only fast path — skip end-of-block encode + Keccak by @LukaszRozmej in #11659

• Fix FCU validation order by @marcindsobczak in #11681

• fix(rlpx): drop racy OnSessionDisconnected fallback in shutdown by @LukaszRozmej in #11688

• Fix geth-style genesis BPOs; fully consider slot number by @flcl42 in #11689

• Wallet Refactoring by @svlachakis in #11664

• feat: add gas-benchmark skill for automated repricing benchmarks by @kamilchodola in #11526

• fix(sync test): de-flake two SynchronizerTests on Windows by @LukaszRozmej in #11683

• chore(ai): Remove unused stuff by @rubo in #11690

• perf(kute): compile JSON-RPC method filter regex once by @obchain in #11667

• Avoid bucket snapshot allocation in BalanceTooLowFilter by @jschnelder in #11686

• perf(bal): account-presence bitmap + storage_reads on column index — skip-merge by @LukaszRozmej in #11661

• Add block building simulator tool by @dmitriy-b in #10044

• Make RefundOnContractCollision available for override in Arbitrum plugin by @wurdum in #11698

• feat(chainspec): support shanghai/cancun/prague/osaka hardfork labels by @obchain in #11553

• Add agent rules: git, comment styles, linting, ArrayPooList by @Marchhill in #11687

• refactor: rework AccountProofCollector to use path-based traversal by @sashaphmn in #11677

• feat(zkevm): Migrate stateless I/O to the SSZ standard by @rubo in #11625

• fix(blockchain): defer main-chain events until write batch is flushed by @obchain in #11640

• perf(bal): cache wire BAL hash on ReadOnlyBlockAccessList by @LukaszRozmej in #11668

• perf(bal): fuse Build() walks into a single pass by @LukaszRozmej in #11676

• fix(txpool): fix stale pending transaction snapshot after head update by @bobtajson in #10604

• Harden sync PR gate by @yevh in #11704

• Gate gas benchmark workflow for fork PRs by @lmorett1 in #11684

• Add tests for skipping reorg only if ancestor of finalised block by @Marchhill in #11439

• fix(trie): rate-limit “Unable to completely prune persisted nodes” warning by @obchain in #11703

• perf(bal): replace SortedDictionary/SortedSet aggregates with Dictionary/HashSet by @LukaszRozmej in #11672

• Simplify pruning cutoff & separate for BALs by @Marchhill in #11701

• Add EthStats protocol message handling by @benaadams in #11652

• Use generic decoding results for block and tx; remove IRlpObjectDecoder; single RlpDecoder base class and interface by @flcl42 in #10759

• Make RefundOnTopLevelHalt overridable for plugin extension by @jschnelder in #11713

• Reduce allocations BAL generation by @Marchhill in #11702

• chore(ci): bump remaining actions/create-github-app-token to v3 by @obchain in #11705

• feat(runner): add –logging-format CLI for structured console logs by @obchain in #11610

• Alchemy - Code Fix by @svlachakis in #11714

• Merge.Plugin: skip duplicate processing in testing_commitBlockV1 by @AnkushinDaniil in #11593

• fix: use enabled parameter in EthStatsPluginTests by @Lubov66 in #11706

• fix(eth/70): reject null receipt payloads by @BZO95 in #11615

• XDC thread-safe round advancement by @batrr in #11709

• XDC Snapshot Recovery by @batrr in #11602

• cleanup - Missed review for 11714 by @svlachakis in #11722

• chore: Remove redundant command line option by @rubo in #11723

• XDC Refactor QC manager by @batrr in #11644

• Optimize guards by @benaadams in #11716

• Enforce IDE0028 (use collection initializers/expressions) in linting by @Marchhill in #11708

• feat: add SkipMetricsTracking property to DbSettings by @cbermudez97 in #11515

• perf(bal): cut allocations on BAL generate/validate paths by @LukaszRozmej in #11725

• RPC: Debug* streaming approach by @svlachakis in #11693

• perf(db): account native rocksdb memory via GC.AddMemoryPressure by @asdacap in #11453

• Move BAL spec-switch and BAL attachment to the branch processor for BalRecorder plugin by @asdacap in #11700

• fix: satisfy IDE0028 in FakeRecordedBalStore by @asdacap in #11738

• Fix DbTracker repeatedly logging ObjectDisposedException after disposal by @stdevMac in #11720

• Fix Geth genesis deposit contract fallback to use zero address by @smartprogrammer93 in #11740

• Fix flaky TransactionReceiptsSubscription tests + observe subscription worker faults by @smartprogrammer93 in #11741

• Refactor sign tx by @ak88 in #11507

• Auto-update fast sync settings by @core-repository-dispatch-app [bot] in #11734

• test: bump executePayloadV1_accepts_already_known_block timeout to 60s by @LukaszRozmej in #11731

• fix(sync): accept receipts with zero bloom from peers by @obchain in #11743

• test(sync): un-ignore Can_cancel_seal_validation by @0xDevNinja in #11744

• test: improve test coverage in Nethermind.State.Flat by @asdacap in #11695

• Validate FCU safe/finalized by ancestry when main-chain markers are outdated by @marcindsobczak in #11746

• Add validation for nested ABI array depth by @Radovenchyk in #11726

• feat: enhance gas benchmark workflow with comments for start and results by @cbermudez97 in #10350

• XDC Refactor HotStuff by @batrr in #11711

• refactor: take ReadOnlySpan

  rlp on IPersistence trie writes by @asdacap in #11745

• Add NETH004: enforce RunContinuationsAsynchronously on TaskCompletionSource by @asdacap in #11465

• refactor(core): centralize EIP-7702 SetCode shape checks by @0xDevNinja in #11641

• Disconnect on unknown protocol message type by @LukaszRozmej in #11266

• feat(Core): introduce NativeMemoryList

  / NativeMemoryListRef and public ValueAddress by @asdacap in #11758

• feat(FlatDB): stagger compaction per-instance with random offset by @asdacap in #11756

• Fix statsanalyzer plugin BAL rename by @Marchhill in #11760

• consensus: standardize slow block JSON output for cross-client metrics by @Marchhill in #11400

• TryCalculateFeePerBlobGas as a decorator for blobbasefeeoverride by @DarkLord017 in #11717

• Add StatsAnalyzer to build pipeline by @Marchhill in #11766

• Improve JsonRpc plumbing by @benaadams in #11697

• Make EraE tests visible and green by @flcl42 in #11727

• ModExp exponent int32 oveflow fix by @alexb5dh in #11692

• eth/70: stop response early when block has txs but no receipts by @stdevMac in #11754

• RPC: trace_* streaming approach by @svlachakis in #11755

• chore: enforce IDE0130 (namespace matches folder structure) by @asdacap in #11762

• Refactor Json Streaming by @benaadams in #11781

• EraE - fixes by @svlachakis in #11771

• JSONRPC csproj fix by @svlachakis in #11773

• feat: add proof_getProofWithMeta JSON-RPC method by @AnkushinDaniil in #11498

• Change BAL DB key by @Marchhill in #11761

• Feature/Rework DiscV4 by @asdacap in #8616

• ci: skip Claude review autorun on fork PRs by @peter941221 in #11789

• Fix/eth69 blockrangeupdate validation by @LukaszRozmej in #11796

• Unify assertions by @flcl42 in #11567

• test: fix flaky KademliaNodeSource ping assertions by @LukaszRozmej in #11800

• LogIndex fixes by @svlachakis in #11791

• WriteBatch fix by @svlachakis in #11793

• Peers fix by @svlachakis in #11797

• personal_sign fix by @svlachakis in #11774

• EraE - ensure validated fix by @svlachakis in #11772

• Align Taiko engine payload with alethia-reth by @jmadibekov in #11776

• Boot nodes to debug log by @benaadams in #11805

• XDC Add Timestamper by @batrr in #11808

• Fix shutdown race in SnapProvider PLINQ (closes #11806) by @stdevMac in #11807

• KAD/discv4 debug logs by @flcl42 in #11811

• EIP-7778 gas fix by @svlachakis in #11794

• rpc: reject EIP-1898 blockHash+blockNumber by @peter941221 in #11777

• rpc: treat zero estimateGas as unset by @peter941221 in #11780

• rpc: reject oversized blob calls by @peter941221 in #11782

• Build fix by @svlachakis in #11819

• fix(tests): pin Microsoft.Testing.Platform to fix flaky CI by @batrr in #11816

• ValueHash256Converter fix by @svlachakis in #11820

• Activate BAL only when needed by @flcl42 in #11795

• perf(state): invoke HintBal from BlockCachePreWarmer to warm BAL slots by @asdacap in #11551

• fix(blockchain): bound ClearStaleMarkersAbove scan and flush batch periodically by @LukaszRozmej in #11818

• Prunning - Regression test by @svlachakis in #11817

• feat(rpc): add eth_capabilities method for routing capability discovery by @divi2806 in #11438

• ZeroFrameMerger fix by @svlachakis in #11821

• test(evm): un-ignore Trace_invalid_jump{,i}_exception by @0xDevNinja in #11799

• feat(snap): cap Proofs count at 256 on inbound snap responses by @asdacap in #11786

• Fix FlatSnapServer trie node response limit by @bshastry in #11809

• test: lock trimmed eth_getProof storage values by @peter941221 in #11784

• zk-logging by @benaadams in #11757

• XDC Small optmizations by @batrr in #11810

• fix(nethtest): BLOCKHASH recency window in state-test runner by @felix314159 in #11844

• fix(zkevm): use explicit hash dictionary comparers by @Ahjan1999 in #11721

• Improve SSZ by @flcl42 in #11748

• fix: fix-nethtest symlink by @rubo in #11847

• Fix flaky TransactionReceiptsSubscription tests (timeout under parallelism) by @smartprogrammer93 in #11849

• chore: Remove Base from networks by @rubo in #11852

• chore(ai): Consolidate Claude config by @rubo in #11853

• Flakiness Fixes - Tests & CI by @svlachakis in #11850

• Test EIP-8037 code-deposit halt state gas unwind by @BZO95 in #11710

• Rework TrieWarmer to ThreadPool processors by @benaadams in #11848

• EIP-7928 - RLP fix by @svlachakis in #11861

• Change PR label condition for benchmark job by @kamilchodola in #11851

• Networking - fix flaky test by @svlachakis in #11870

• perf(discovery): replace timeout exceptions with value results in discv4 by @benaadams in #11859

• EIP-7928 - followup by @svlachakis in #11869

• test(evm): cover CREATE2 code-deposit gas failure by @Ahjan1999 in #11759

• rpc: preserve estimateGas revert semantics by @peter941221 in #11783

• ReceiptsMigration fix by @svlachakis in #11822

• perf(bal): build BAL validation index on the sequential execution path by @Marchhill in #11873

• Add equality logic; simplify tests by @flcl42 in #11747

• return error on empty blockstatecalls by @DarkLord017 in #11858

• Remove obsolete NonValidatorNode receipt/body enforcement check by @MarekM25 in #11790

• fix(engine): add regression coverage for NewPayloadHandler task cleanup by @peter941221 in #11803

• fix: EnrTreeParser tests to cover enr: leaves and enrtree:// links by @MozirDmitriy in #9701

• fix(merge): bound dangling block cache growth by @JayeTurn in #11426

• Default slotnum to 0 in tests by @flcl42 in #11879

• Restrict IPC socket to owner-only mode if set by @LukaszRozmej in #9449

• fix: TransientResource disposal leaks and missing pruning in PersistenceManager by @asdacap in #10952

• simulate: remove prepare-state enumeration churn by @peter941221 in #11838

• fix(merge): capture bad blocks at pre-process rejection stages by @0xDevNinja in #11696

• fix: fix race condition in FullPruningDb read methods by @kseniaeremekno in #10920

• perf(merge-sync): cache PosForwardHeaderProvider.GetBlockHeaders by @0xDevNinja in #11617

• Fast Eth Transfer by @benaadams in #11804

• Recalibrate Unzen zk gas multipliers by @jmadibekov in #11749

• JsonRpc: default omitted block to latest for eth_getStorageValues by @MysticRyuujin in #11883

• Refactor BAL validation by @Marchhill in #11878

• fix(ui): assign slice result to txsToAdd array by @dizer-ti in #10724

• CI - more fixes by @svlachakis in #11868

• rpc: reject EIP-1474 invalid balance params by @peter941221 in #11779

• fix(hive): fix snap sync nethermind-to-nethermind test by @newmanifold in #11022

• fix(test): de-flake SynchronizerTests + Cannot_produce_bad_blocks under CI load by @svlachakis in #11881

• perf: reuse ancestor headers in UnclesValidator by @yyhrnk in #9930

• Optimize engine_getPayloadBodiesByHash/ByRange by @benaadams in #11863

• fix(rpc): drain in-flight JSON-RPC requests before disposing databases by @obchain in #11845

• diag: support periodic dotMemory snapshots via env var by @kamilchodola in #11843

• test(snap): dispose AccountRangeMessage in snap tests by @JayeTurn in #11244

• perf(bal): reduce per-access BAL/state recording overhead on warm reads by @benaadams in #11905

• Apply Unzen zk gas spec updates by @jmadibekov in #11896

• feat: add ProgressReporter abstraction by @berZKerk in #9146

• fix: add ReadOnlySpan

  overload for long BE decode by @Galoretka in #9826

• fix(test runner): robustness fix for fuzzing by @felix314159 in #11913

• refactor: extract block producer construction into DI-registered factories by @asdacap in #11893

• Syncrhonization - CI fix by @svlachakis in #11914

• Improve flat state backend compatibility by @asdacap in #11911

• FundsDistributor fix by @svlachakis in #11886

• Auto-update fast sync settings by @core-repository-dispatch-app [bot] in #11923

• perf(state): drop LINQ overhead in UpdateRootHashesMultiThread setup by @LukaszRozmej in #11929

• Update OP Superchain chains by @core-repository-dispatch-app [bot] in #11922

• fix(cache): preserve future-epoch entries during concurrent Clear() by @smartprogrammer93 in #11919

• EraE - ere files spec changes by @svlachakis in #11928

• perf(threading): ManualResetEventSlim for ParallelUnbalancedWork completion signal by @kamilchodola in #11885

• XDC : XDPoS Rpc Module by @Demuirgos in #10553

• Align buy gas to be geth alike by @DarkLord017 in #11865

• fix(FlatDB): prune orphaned non-canonical snapshots on persist by @asdacap in #11739

• test: bump timeouts on two flaky timing-bounded tests by @LukaszRozmej in #11933

• fix: enforce even-length hex validation for JSON converter by @manusw7 in #11876

• rpc: zero hashes for absent eth_getProof accounts by @peter941221 in #11912

• feat(zkevm): Add EEST for stateless execution by @rubo in #11908

• test: lock debug_traceCall zero-gas semantics by @peter941221 in #11900

• test: lock trace_callMany gas cap defaults by @peter941221 in #11897

• refactor(bloomstorage): removed BloomStorage and related dependencies by @satyvm in #11906

• Optimize BN254 multi-pair pairing checks by @kamilchodola in #11916

• perf(evm): avoid per-CREATE RlpStream allocation in contract-address derivation by @kamilchodola in #11892

• feat: Reset Masaya zk gas schedule, tidy zk gas surface by @Gohnnyman in #11940

• RLP arrays more checks and limits by @alexb5dh in #11901

• simulate: treat gas cap zero as uncapped budget by @peter941221 in #11841

• perf(bls): reduce allocations and wasted clears in G1MSM point decoding by @kamilchodola in #11889

• fix(build): pass DOTNET_HOST_PATH to JsonRpc generator Exec by @LukaszRozmej in #11944

• perf(bn254): skip redundant infinity re-scan in pairing loop by @kamilchodola in #11888

• perf(crypto): reuse the RIPEMD-160 digest per thread by @kamilchodola in #11890

• chore: Update packages by @rubo in #11951

• chore: Update Dockerfiles by @core-repository-dispatch-app [bot] in #11953

• Increase RLP block withdrawals limit to 64k by @alexb5dh in #11955

• test: wrap independent assertions in Assert.EnterMultipleScope by @LukaszRozmej in #11942

• Serve health UI and data/events behind a reverse proxy by @wurdum in #11946

• Fix BALs network encoding by @flcl42 in #11950

• feat(FlatDB): add CompactionOffset config to pin the compaction schedule by @kamilchodola in #11958

• Speed up a bit fixed-length hex decoding by @flcl42 in #11956

• Fix EngineApiProxy rejecting its own blocks: forward EIP-7685 executionRequests in synthetic newPayload by @stdevMac in #11960

• test: harden SyncPeerPool peer-init wait against ARM CI flake by @LukaszRozmej in #11964

• chore: Update Dockerfiles by @core-repository-dispatch-app [bot] in #11962

• Tools for RPC testing: generator and monitor by @alexb5dh in #11862

• feat(sync): add Sync.StaticSnapPivot for fixed-pivot snap sync from a frozen peer by @AnkushinDaniil in #11943

• feat(flatdb): RLP-wrap storage slot values behind a versioned flag by @asdacap in #11909

• feat(rpc): implement proof_call for stateless call verification by @smartprogrammer93 in #11732

• fix(test): sign state-test transactions instead of using a placeholder signature by @felix314159 in #11969

• fix(flatdb): detect legacy raw slot DBs by slot presence, not the Layout marker by @asdacap in #11975

• ci: chunk Synchronization.Test on macOS to avoid 15-min timeout by @LukaszRozmej in #11978

• Schedule Unzen fork on Taiko Hoodi by @jmadibekov in #11977

• debug: treat zero traceCallMany gas as unset by @peter941221 in #11830

• feat(evm): add pow2 zkVM memory allocation path by @maximmenshikov in #11974

• Slotnum fix by @Marchhill in #11968

• Fix SSZ Accept negotiation to inspect every media range by @benaadams in #11856

• fix : do not delete empty accounts on stateoverride(eip 7610) by @DarkLord017 in #11854

• test(zkevm): Update test inputs by @rubo in #11984

• fix(rpc): unsafe ValueTask synchronous wait during streaming by @alexb5dh in #12006

• fix(flatdb): preserve format markers when clearing the flat DB by @asdacap in #11996

• Flat: force-persist the head-reachable fork instead of an arbitrary one by @asdacap in #11967

• fix(flatdb): make snap finalize crash-durable and the restart wipe cheap by @asdacap in #11997

• Flat - Persistence Cache by @svlachakis in #12035

• fix: guard ForkChoiceUpdated against null safe/finalized hash by @asdacap in #12110

• fix(engine): exclude SSZ-REST paths from missing-capabilities warning by @LukaszRozmej in #12176

• fix(sync): recover header sync after a lost chain level on unclean shutdown (#8029) by @stdevMac in #11994

• fix(db): flush all column families in ColumnsDb.Flush by @asdacap in #12223

• fix(sync): unwedge UpdatingPivot for nodes restarted before the first pivot update by @stdevMac in #11995

New Contributors

• @wjmelements made their first contribution in #11522
• @apetro2 made their first contribution in #11622
• @jschnelder made their first contribution in #11686
• @sashaphmn made their first contribution in #11677
• @lmorett1 made their first contribution in #11684
• @Lubov66 made their first contribution in #11706
• @Radovenchyk made their first contribution in #11726
• @peter941221 made their first contribution in #11789
• @berZKerk made their first contribution in #9146
• @satyvm made their first contribution in #11906

Full Changelog: https://github.com/NethermindEth/nethermind/compare/1.38.1…1.39.0

Build signatures

The packages are signed with the following OpenPGP key: AD12 7976 5093 C675 9CD8 A400 24A7 7461 6F1E 617E

Build signatures

The packages are signed with the following OpenPGP key: AD12 7976 5093 C675 9CD8 A400 24A7 7461 6F1E 617E