Node.js 26.12.0 (Current)

Node.js — Node.js 26.12.0 (Current)

Node.js 26.12.0 (Current)

RL

Richard Lau

Node.js 26.12.0 (Current)

2026-10-14, Version 26.12.0 (Current), @richardlau

Notable Changes

• [ 1ebd6d3677 ] - (SEMVER-MINOR) doc,lib,src : throw on missing WebAssembly or RX support (Paolo Insogna) #66533

• [ 7f1937d2b9 ] - (SEMVER-MINOR) http : add websocketMask() and websocketUnmask() (James M Snell) #66335

Commits

• [ 30e76bb16a ] - benchmark : fix input passed to subtle.digest in webcrypto-digest (Rafael Gonzaga) #66608

• [ adef72223a ] - benchmark : fix buffer option in buffer read/write benchmarks (Rafael Gonzaga) #66604

• [ 2f498f08fe ] - benchmark : add util.parseArgs benchmark (Rafael Gonzaga) #66599

• [ 4ce8412e18 ] - benchmark : fix url-searchparams-sort to sort a fresh list (RafaelGSS) #66535

• [ 493bd6c66e ] - benchmark,tools : fix napi benchmarks on GHA (Nigro Simone) #66423

• [ e4515552d6 ] - build : run QUIC CI for V8 changes (Yuya Inoue) #66602

• [ a888e51062 ] - build : support Python 3.15 (Mike McCready) #65750

• [ 2afab9a63b ] - build : do not include shared gtest in node link path (Antoine du Hamel) #66626

• [ f88c2f8ec6 ] - build,test : enable temporal support on no-ICU and system-ICU builds (Antoine du Hamel) #66697

• [ 5fd03e6fdf ] - child_process : propagate config-file permission flags to children (Rafael Gonzaga) #66559

• [ f771134b07 ] - crypto : isolate provider EC PKCS8 encoding (Filip Skokan) #66413

• [ 4e00a293db ] - crypto : remove key export and metadata locks (Filip Skokan) #66413

• [ bcd8018775 ] - crypto : remove verify setup key locking (Filip Skokan) #66413

• [ 883250fee2 ] - crypto : remove KEM key locking (Filip Skokan) #66413

• [ 9d98805071 ] - crypto : remove RSA-OAEP key locking (Filip Skokan) #66413

• [ d6293e7bb1 ] - crypto : skip secret key mutex allocation (Filip Skokan) #66413

• [ 8d8af8003e ] - crypto : keep the root cert store per Environment (Shelley Vohr) #66411

• [ c6f0614785 ] - crypto : remove select Web Crypto warnings (Filip Skokan) #66312

• [ e5360b5a08 ] - deps : update googletest to 988ea2c1798de7779f656df2281dd36d6039a17a (Node.js GitHub Bot) #66652

• [ 7eb230a2c1 ] - deps : update acorn to 8.19.0 (Node.js GitHub Bot) #66655

• [ af946ba8f3 ] - deps : update sqlite to 3.54.0 (Node.js GitHub Bot) #66663

• [ 007872a85d ] - deps : V8: cherry-pick 8d14d49c4040 (Antoine du Hamel) #66627

• [ f44aec4966 ] - deps : update simdjson to 5.0.3 (Daniel Lemire) #66620

• [ 1a33e914e8 ] - deps : V8: cherry-pick 7d5eb1df2a72 (inoway46) #66566

• [ 3294d51e5a ] - diagnostics_channel : fix default callback context (Matteo Collina) #66481

• [ 5c602a5824 ] - doc : list futimes among fd APIs disabled by the permission model (Rafael Gonzaga) #66649

• [ eaeb4736c8 ] - doc : add Test Runner to list of built-in diagnostic channels (Vas Sudanagunta) #66563

• [ 0e1c99afae ] - doc : document stream/iter behaviors and Node.js extensions (James M Snell) #66483

• [ 846236367d ] - doc : document URL and Uint8Array references in process.permission (Rafael Gonzaga) #66557

• [ fc3b067be7 ] - doc : clarify http Agent keepSocketAlive behavior (Efe Karasakal) #66252

• [ 73a4e90ce2 ] - doc : document keepAliveTimeoutBuffer server option (Efe Karasakal) #66286

• [ bb816582af ] - doc : fix request.reusedSocket timeout example (Efe Karasakal) #66286

• [ 82223ab4d9 ] - doc : clarify revert PR label policy (Antoine du Hamel) #66529

• [ c6f59d4e8e ] - doc : clarify node binary misuse after compromise (Rafael Gonzaga) #66530

• [ 8904178498 ] - doc : document linux-x64-musl build toolchain (Issac) #66523

• [ 1e8247a74e ] - doc : run license-builder (github-actions[bot]) #66517

• [ b2773d5e4c ] - doc : add missing return types in cluster.md (Daniel Pinto) #66453

• [ c1073f31de ] - ffi : fix exportArrayBuffer type check (Trivikram Kamat) #66455

• [ 69148ee0ff ] - fs : lock FileHandle on first read in pull() and pullSync() (James M Snell) #66483

• [ 700c60a1cd ] - fs : serialize FileHandle writer() async writes (James M Snell) #66483

• [ 32833def1c ] - http : reduce raw header name allocations (Roberto Bianchi) #66488

• [ 115731dda7 ] - http2 : speed up response getHeaders (Roberto Bianchi) #66592

• [ 447c36cb45 ] - lib : fix AbortSignal.any() nested composite leak (Darius) #66617

• [ 1722ced4b4 ] - lib : add --allow-fs-vfs to permission available flags (Rafael Gonzaga) #66554

• [ 062ece77fc ] - lib : fix benchmark record acknowledgement race (Filip Skokan) #66430

• [ 05d0b14438 ] - lib : set exit code on failed node:bench run() (RafaelGSS) #66534

• [ 2cab299471 ] - lib : default node:bench warmup to 10 invocations (RafaelGSS) #66536

• [ 83f507845d ] - meta : bump nodejs/node-pr-labeler to dfe5eb3 (Soul Lee) #66606

• [ 6fbffd5ee5 ] - meta : bump codecov/codecov-action from 7.1.0 to 7.1.1 (dependabot[bot]) #66448

• [ bd567f8bd6 ] - module : fix require of imports with package map (Lazizbek Ergashev) #66565

• [ c442f471a5 ] - module : synchronously load most ES modules (Geoffrey Booth) #62530

• [ 51f66f0134 ] - permission : keep explicit fs grants when dropping a covering directory (Rafael Gonzaga) #66556

• [ 1aa10d80e2 ] - process : mark process.finalization as release candidate (Matteo Collina) #66436

• [ dd4715a6ba ] - querystring : fix value decoding after encoded keys (Ved Chaudhari) #66553

• [ 9648a6ba8e ] - quic : reject closed stream writer writes with a TypeError (James M Snell) #66483

• [ d6f566baf8 ] - quic : give each BindingData its own allocator state (Shelley Vohr) #66411

• [ c3204c15bd ] - quic : validate session close error codes (Christian Aurich Zanettini Martins) #66302

• [ 5b87354f5a ] - quic : destroy stream on invalid promise body (Christian Aurich Zanettini Martins) #66260

• [ 9ef698c781 ] - sqlite : validate aggregate() name and options (Guilherme Araújo) #66463

• [ bbf41f8cfb ] - sqlite : persist enableDefensive() across reopen (Trivikram Kamat) #66404

• [ 54867cd25e ] - sqlite : throw on oversized strings instead of aborting (Trivikram Kamat) #66521

• [ 4314cde48b ] - src : release uv_fs_t in permission WildcardIfDir (Rafael Gonzaga) #66555

• [ 0e58916f08 ] - src : stop including simdjson.h from env.h (Daniel Lemire) #66620

• [ 06f56a55bb ] - src : use native CopyArrayBufferBytes for webstream buffer copy (René) #66400

• [ 2e3dd5bb63 ] - src : fix config file handling (Marco Ippolito) #66431

• [ cd86506bc2 ] - src : mark config file as stable (Marco Ippolito) #66431

• [ 15ff9884e4 ] - stream : skip idle webstreams start and watchers (Matteo Collina) #66424

• [ 3f75c89fb8 ] - stream : add pipeToSync() failOnIncompleteClose option (James M Snell) #66483

• [ 6cecf140e7 ] - stream : do not fail the writer when pipeToSync() cannot close (James M Snell) #66483

• [ 16833534b6 ] - stream : fix fromSync() async input error messages (James M Snell) #66483

• [ af41622ad8 ] - stream : reject closed fromWritable() writes with a TypeError (James M Snell) #66483

• [ 4b83c6c38e ] - stream : accept explicit stream/iter budgets below 16384 (James M Snell) #66483

• [ f302fbd04a ] - stream : reduce per-chunk overhead in stream/iter consumers (James M Snell) #66483

• [ 7ba60dcdbe ] - stream : keep the original error when writer.fail() throws (James M Snell) #66483

• [ dcac51a7db ] - stream : align pull() abort handling with the spec (James M Snell) #66483

• [ 995dee6b6b ] - stream : honor stream/iter protocols on function objects (James M Snell) #66483

• [ 6eaf91353a ] - stream : do not hold back nested async data in from() (James M Snell) #66483

• [ 69d44aedb4 ] - stream : bound pre-batched async values in from() (James M Snell) #66483

• [ 6b1e7c4cf1 ] - stream : guard shareSync() against re-entrant source reads (James M Snell) #66483

• [ 8a47365425 ] - stream : split oversized share batches under drop-oldest (James M Snell) #66483

• [ 30cbc4e643 ] - stream : reject drop-newest backpressure in shareSync() (James M Snell) #66483

• [ 42ae08594e ] - stream : detach shareSync consumers on strict budget errors (James M Snell) #66483

• [ fa49de9ba6 ] - stream : keep share buffer when all consumers detach (James M Snell) #66483

• [ e6662cb904 ] - stream : fix Utf8Stream flush handling (James M Snell) #66473

• [ 93596b1a9e ] - stream : add dump()/dumpSync() for stream/iter (Ethan Arrowood) #65598

• [ 4ba6ce1b0c ] - stream : port remaining SonicBoom tests for Utf8Stream (Matteo Collina) #66275

• [ cd8b5fa5b0 ] - test : tolerate async block count updates in test-fs-stat-bigint (Rafael Gonzaga) #66576

• [ 30814ce991 ] - test : replace discard loops with dump() (Ethan Arrowood) #65598

• [ 20441b8fc0 ] - test : run node-bench tools test sequentially (Filip Skokan) #66338

• [ 9618da6fe3 ] - test : remove duplicated cases in permission fs-read fixture (Rafael Gonzaga) #66450

• [ c348a4cb46 ] - test : run instantiateStreaming-bad-imports WPT (Filip Skokan) #66322

• [ 7d4fda6ba7 ] - test : honor allowed WPT promise rejections (Filip Skokan) #66322

• [ d4c87eb086 ] - test : scope Blob WPT failures to big-endian (Filip Skokan) #66322

• [ 7309ddf204 ] - test_runner : rerun failing todo tests in suites (Barak) #66605

• [ da908b3072 ] - test_runner : report load errors with --test-isolation=none (Lazizbek Ergashev) #66550

• [ b18e121625 ] - test_runner : add mock call assertions to t.assert (Guilherme Araújo) #66476

• [ 3d691ab75e ] - tools : restore Python 3.14 for daily WPT (Filip Skokan) #66699

• [ 714aca1ef6 ] - tools : switch to PGP and SHA256 in ICU updater (Antoine du Hamel) #66469

• [ fa9fca45e4 ] - tools : lint thread_local in src (Shelley Vohr) #66411

• [ dbc3e97847 ] - tools : copy hdr_histogram_internal.h in update-histogram.sh (Filipe Oliveira (Redis)) #66528

• [ 4760c27904 ] - tools : bump the eslint group in /tools/eslint with 5 updates (dependabot[bot]) #66445

• [ 63c20ee58e ] - vfs : add ComposableProvider for layered mounts (Matteo Collina) #66235

• [ ab057989af ] - watch : strip underscore aliases of watch flags (Trivikram Kamat) #66365

Windows 64-bit Installer: https://nodejs.org/dist/v26.12.0/node-v26.12.0-x64.msi Windows ARM 64-bit Installer: https://nodejs.org/dist/v26.12.0/node-v26.12.0-arm64.msi Windows 64-bit Binary: https://nodejs.org/dist/v26.12.0/win-x64/node.exe Windows ARM 64-bit Binary: https://nodejs.org/dist/v26.12.0/win-arm64/node.exe macOS 64-bit Installer: https://nodejs.org/dist/v26.12.0/node-v26.12.0.pkg macOS Apple Silicon 64-bit Binary: https://nodejs.org/dist/v26.12.0/node-v26.12.0-darwin-arm64.tar.gz macOS Intel 64-bit Binary: https://nodejs.org/dist/v26.12.0/node-v26.12.0-darwin-x64.tar.gz Linux 64-bit Binary: https://nodejs.org/dist/v26.12.0/node-v26.12.0-linux-x64.tar.xz Linux PPC LE 64-bit Binary: https://nodejs.org/dist/v26.12.0/node-v26.12.0-linux-ppc64le.tar.xz Linux s390x 64-bit Binary: https://nodejs.org/dist/v26.12.0/node-v26.12.0-linux-s390x.tar.xz AIX 64-bit Binary: https://nodejs.org/dist/v26.12.0/node-v26.12.0-aix-ppc64.tar.gz ARMv8 64-bit Binary: https://nodejs.org/dist/v26.12.0/node-v26.12.0-linux-arm64.tar.xz Source Code: https://nodejs.org/dist/v26.12.0/node-v26.12.0.tar.gz Other release files: https://nodejs.org/dist/v26.12.0/ Documentation: https://nodejs.org/docs/v26.12.0/api/

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