sea: support code cache for ESM entrypoint in SEA by joyeecheung · Pull Request #62158 · nodejs/node

joyeecheung · Mar 8, 2026

The initial support for ESM entrypoint in SEA didn't support code cache. This patch implements that by following a path similar to how code cache in CJS SEA entrypoint is supported: at build time we generate the code cache from C++ and put it into the sea blob, and at runtime we consume it via a special case in compilation routines - for CJS this was
CompileFunctionForCJSLoader, in the case of SourceTextModule, it's in Module::New.

Refs: #61813

nodejs-github-bot · Mar 8, 2026

Review requested:

@nodejs/loaders
@nodejs/single-executable
@nodejs/vm

joyeecheung · Mar 8, 2026

+    // in the SEA code. Support it.
+    // Refs: https://github.com/nodejs/node/pull/48191#discussion_r1213271430
+    // TODO(joyeecheung): this likely has been fixed by
+    // https://chromium-review.googlesource.com/c/v8/v8/+/5401780 - add a test


I noticed that this should already be fixed - and locally it works. But since it was talking about the CommonJS case I think it's out of scope of this PR, so I only left a TODO.

The initial support for ESM entrypoint in SEA didn't support code cache. This patch implements that by following a path similar to how code cache in CJS SEA entrypoint is supported: at build time we generate the code cache from C++ and put it into the sea blob, and at runtime we consume it via a special case in compilation routines - for CJS this was CompileFunctionForCJSLoader, in the case of SourceTextModule, it's in Module::New.

mcollina

lgtm

codecov · Mar 8, 2026

Codecov Report

❌ Patch coverage is 80.35714% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.65%. Comparing base (724ef8e) to head (57e7b9f).
⚠️ Report is 184 commits behind head on main.

Files with missing lines	Patch %	Lines
src/node_sea.cc	78.12%	3 Missing and 4 partials ⚠️
src/module_wrap.cc	83.33%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #62158      +/-   ##
==========================================
- Coverage   89.66%   89.65%   -0.01%     
==========================================
  Files         676      676              
  Lines      206543   206571      +28     
  Branches    39542    39552      +10     
==========================================
+ Hits       185193   185202       +9     
- Misses      13475    13484       +9     
- Partials     7875     7885      +10

Files with missing lines	Coverage Δ
src/module_wrap.cc	`74.32% <83.33%> (+0.08%)`	⬆️
src/node_sea.cc	`89.53% <78.12%> (-0.18%)`	⬇️

... and 34 files with indirect coverage changes

🚀 New features to boost your workflow:

❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

nodejs-github-bot · Mar 9, 2026

CI: https://ci.nodejs.org/job/node-test-pull-request/71626/

nodejs-github-bot · Mar 9, 2026

CI: https://ci.nodejs.org/job/node-test-pull-request/71646/

nodejs-github-bot · Mar 10, 2026

CI: https://ci.nodejs.org/job/node-test-pull-request/71651/

github-actions · Mar 10, 2026

The notable-change PRs with changes that should be highlighted in changelogs. label has been added by @joyeecheung.

Please suggest a text for the release notes if you'd like to include a more detailed summary, then proceed to update the PR description with the text or a link to the notable change suggested text comment. Otherwise, the commit will be placed in the Other Notable Changes section.

nodejs-github-bot · Mar 10, 2026

Landed in 9ff27fd

The initial support for ESM entrypoint in SEA didn't support code cache. This patch implements that by following a path similar to how code cache in CJS SEA entrypoint is supported: at build time we generate the code cache from C++ and put it into the sea blob, and at runtime we consume it via a special case in compilation routines - for CJS this was CompileFunctionForCJSLoader, in the case of SourceTextModule, it's in Module::New. PR-URL: #62158 Refs: #61813 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

Notable changes: async_hooks: * (SEMVER-MINOR) add using scopes to AsyncLocalStorage (Stephen Belanger) #61674 benchmark: * (SEMVER-MINOR) add benchmarks for experimental stream/iter (James M Snell) #62066 cli: * (SEMVER-MINOR) add --max-heap-size option (tannal) #58708 crypto: * (SEMVER-MINOR) add TurboSHAKE and KangarooTwelve Web Cryptography algorithms (Filip Skokan) #62183 repl: * (SEMVER-MINOR) add customizable error handling (Anna Henningsen) #62188 * (SEMVER-MINOR) remove dependency on domain module (Matteo Collina) #61227 sea: * (SEMVER-MINOR) support code cache for ESM entrypoint in SEA (Joyee Cheung) #62158 stream: * (SEMVER-MINOR) add stream/iter Implementation (James M Snell) #62066 test: * (SEMVER-MINOR) add tests for experimental stream/iter implementation (James M Snell) #62066 test_runner: * add exports option for module mocks (sangwook) #61727 PR-URL: #62522

Notable changes: async_hooks: * (SEMVER-MINOR) add using scopes to `AsyncLocalStorage` (Stephen Belanger) #61674 cli: * (SEMVER-MINOR) add `--max-heap-size` option (tannal) #58708 crypto: * (SEMVER-MINOR) add TurboSHAKE and KangarooTwelve Web Cryptography algorithms (Filip Skokan) #62183 repl: * (SEMVER-MINOR) add customizable error handling (Anna Henningsen) #62188 * (SEMVER-MINOR) remove dependency on `node:domain` (Matteo Collina) #61227 sea: * (SEMVER-MINOR) support code cache for ESM entrypoint in SEA (Joyee Cheung) #62158 stream: * (SEMVER-MINOR) add stream/iter Implementation (James M Snell) #62066 test_runner: * add exports option for module mocks (sangwook) #61727 PR-URL: #62522

This MR contains the following updates: | Package | Update | Change | |---|---|---| | [node](https://nodejs.org) ([source](https://github.com/nodejs/node)) | minor | `25.8.2` → `25.9.0` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>nodejs/node (node)</summary> ### [`v25.9.0`](https://github.com/nodejs/node/releases/tag/v25.9.0): 2026-04-01, Version 25.9.0 (Current), @aduh95 [Compare Source](nodejs/node@v25.8.2...v25.9.0) ##### Notable Changes ##### Test runner module mocking improvements `MockModuleOptions.defaultExport` and `MockModuleOptions.namedExports` have been consolidated into a single option `MockModuleOptions.exports` to align with user expectations and other test runners. A `default` property on `MockModuleOptions.exports` represents the default export, and own enumerable properties are treated as named exports. An automated migration is available to update user code: <https://github.com/nodejs/userland-migrations/tree/main/recipes/mock-module-exports> ```bash npx codemod @nodejs/mock-module-exports ``` Contributed by sangwook in [#61727](nodejs/node#61727). ##### Other notable changes - \[[`312476cb84`](nodejs/node@312476cb84)] - **(SEMVER-MINOR)** **async\_hooks**: add using scopes to `AsyncLocalStorage` (Stephen Belanger) [#61674](nodejs/node#61674) - \[[`62d2cd473b`](nodejs/node@62d2cd473b)] - **(SEMVER-MINOR)** **cli**: add `--max-heap-size` option (tannal) [#58708](nodejs/node#58708) - \[[`d0ebf0e44b`](nodejs/node@d0ebf0e44b)] - **(SEMVER-MINOR)** **crypto**: add `TurboSHAKE` and `KangarooTwelve` Web Cryptography algorithms (Filip Skokan) [#62183](nodejs/node#62183) - \[[`f85b9d9fa8`](nodejs/node@f85b9d9fa8)] - **(SEMVER-MINOR)** **repl**: add customizable error handling (Anna Henningsen) [#62188](nodejs/node#62188) - \[[`67b854d407`](nodejs/node@67b854d407)] - **(SEMVER-MINOR)** **repl**: remove dependency on `node:domain` (Matteo Collina) [#61227](nodejs/node#61227) - \[[`966b700623`](nodejs/node@966b700623)] - **(SEMVER-MINOR)** **sea**: support code cache for ESM entrypoint in SEA (Joyee Cheung) [#62158](nodejs/node#62158) - \[[`e1f0d2a014`](nodejs/node@e1f0d2a014)] - **(SEMVER-MINOR)** **stream**: add stream/iter Implementation (James M Snell) [#62066](nodejs/node#62066) ##### Commits - \[[`312476cb84`](nodejs/node@312476cb84)] - **(SEMVER-MINOR)** **async\_hooks**: add using scopes to AsyncLocalStorage (Stephen Belanger) [#61674](nodejs/node#61674) - \[[`bfff8cb2ab`](nodejs/node@bfff8cb2ab)] - **(SEMVER-MINOR)** **benchmark**: add benchmarks for experimental stream/iter (James M Snell) [#62066](nodejs/node#62066) - \[[`c721d68502`](nodejs/node@c721d68502)] - **benchmark**: fix destructuring in dgram/single-buffer (Ali Hassan) [#62084](nodejs/node#62084) - \[[`e2f03c8e92`](nodejs/node@e2f03c8e92)] - **buffer**: improve performance of multiple Buffer operations (Ali Hassan) [#61871](nodejs/node#61871) - \[[`2fcd07f1ba`](nodejs/node@2fcd07f1ba)] - **build**: support empty libname flags in `configure.py` (Antoine du Hamel) [#62477](nodejs/node#62477) - \[[`b800c57fce`](nodejs/node@b800c57fce)] - **build**: fix timezone-update path references (Chengzhong Wu) [#62280](nodejs/node#62280) - \[[`7dc5a1e9b4`](nodejs/node@7dc5a1e9b4)] - **build**: skip dockit on IBMi (SRAVANI GUNDEPALLI) [#62189](nodejs/node#62189) - \[[`f0eea0f905`](nodejs/node@f0eea0f905)] - **build**: fix --node-builtin-modules-path (Filip Skokan) [#62115](nodejs/node#62115) - \[[`62d2cd473b`](nodejs/node@62d2cd473b)] - **(SEMVER-MINOR)** **cli**: add --max-heap-size option (tannal) [#58708](nodejs/node#58708) - \[[`ac4b485698`](nodejs/node@ac4b485698)] - **crypto**: update root certificates to NSS 3.121 (Node.js GitHub Bot) [#62485](nodejs/node#62485) - \[[`d0ebf0e44b`](nodejs/node@d0ebf0e44b)] - **(SEMVER-MINOR)** **crypto**: add TurboSHAKE and KangarooTwelve Web Cryptography algorithms (Filip Skokan) [#62183](nodejs/node#62183) - \[[`3009980d9d`](nodejs/node@3009980d9d)] - **crypto**: add crypto::GetSSLCtx API for addon access to OpenSSL contexts (Tim Perry) [#62254](nodejs/node#62254) - \[[`f5725ca81d`](nodejs/node@f5725ca81d)] - **crypto**: reject ML-KEM/ML-DSA [PKCS#8](https://github.com/PKCS/node/issues/8) import without seed in SubtleCrypto (Filip Skokan) [#62218](nodejs/node#62218) - \[[`f69ed4bc3f`](nodejs/node@f69ed4bc3f)] - **crypto**: rename CShakeParams and KmacParams length to outputLength (Filip Skokan) [#61875](nodejs/node#61875) - \[[`4d96e53570`](nodejs/node@4d96e53570)] - **crypto**: refactor WebCrypto AEAD algorithms auth tag handling (Filip Skokan) [#62169](nodejs/node#62169) - \[[`93d77719e8`](nodejs/node@93d77719e8)] - **crypto**: read algorithm name property only once in normalizeAlgorithm (Filip Skokan) [#62170](nodejs/node#62170) - \[[`3d2e23a981`](nodejs/node@3d2e23a981)] - **deps**: update ada to 3.4.4 (Node.js GitHub Bot) [#62414](nodejs/node#62414) - \[[`176d6d2205`](nodejs/node@176d6d2205)] - **deps**: update timezone to 2026a (Node.js GitHub Bot) [#62164](nodejs/node#62164) - \[[`95c7fc67ba`](nodejs/node@95c7fc67ba)] - **deps**: update googletest to [`2461743`](nodejs/node@2461743) (Node.js GitHub Bot) [#62484](nodejs/node#62484) - \[[`e5e9f2044a`](nodejs/node@e5e9f2044a)] - **deps**: update simdjson to 4.5.0 (Node.js GitHub Bot) [#62382](nodejs/node#62382) - \[[`905b94266a`](nodejs/node@905b94266a)] - **deps**: update ngtcp2 to 1.21.0 (Node.js GitHub Bot) [#62051](nodejs/node#62051) - \[[`180c150122`](nodejs/node@180c150122)] - **deps**: V8: cherry-pick [`cf1bce4`](nodejs/node@cf1bce40a5ef) (Richard Lau) [#62449](nodejs/node#62449) - \[[`bc265aa003`](nodejs/node@bc265aa003)] - **deps**: upgrade npm to 11.12.1 (npm team) [#62448](nodejs/node#62448) - \[[`f1b28612c4`](nodejs/node@f1b28612c4)] - **deps**: V8: cherry-pick [`b25cd62`](nodejs/node@b25cd62c7ba2) (Yagiz Nizipli) [#62354](nodejs/node#62354) - \[[`757719d2af`](nodejs/node@757719d2af)] - **deps**: disable rust icu compiled\_data features (Chengzhong Wu) [#62284](nodejs/node#62284) - \[[`3bdc955b63`](nodejs/node@3bdc955b63)] - **deps**: update sqlite to 3.51.3 (Node.js GitHub Bot) [#62256](nodejs/node#62256) - \[[`a9703d194a`](nodejs/node@a9703d194a)] - **deps**: update googletest to [`73a63ea`](nodejs/node@73a63ea) (Node.js GitHub Bot) [#61927](nodejs/node#61927) - \[[`85138935cb`](nodejs/node@85138935cb)] - **deps**: update merve to 1.2.2 (Node.js GitHub Bot) [#62213](nodejs/node#62213) - \[[`231521e75e`](nodejs/node@231521e75e)] - **diagnostics\_channel**: add diagnostics channels for web locks (Ilyas Shabi) [#62123](nodejs/node#62123) - \[[`0093863664`](nodejs/node@0093863664)] - **doc**: deprecate `module.register()` (DEP0205) (Geoffrey Booth) [#62395](nodejs/node#62395) - \[[`0b96ece6be`](nodejs/node@0b96ece6be)] - **doc**: clarify that features cannot be both experimental and deprecated (Antoine du Hamel) [#62456](nodejs/node#62456) - \[[`8d3ea975f5`](nodejs/node@8d3ea975f5)] - **doc**: fix 'transfered' typo in quic.md (lilianakatrina684-a11y) [#62492](nodejs/node#62492) - \[[`08ff16e0ba`](nodejs/node@08ff16e0ba)] - **doc**: move sqlite type conversion section to correct level (René) [#62482](nodejs/node#62482) - \[[`61cc747dd8`](nodejs/node@61cc747dd8)] - **doc**: add Rafael to last security release steward (Rafael Gonzaga) [#62423](nodejs/node#62423) - \[[`64cfa5a6fa`](nodejs/node@64cfa5a6fa)] - **doc**: use npm-published version of doc-kit (Aviv Keller) [#62139](nodejs/node#62139) - \[[`1020321fb0`](nodejs/node@1020321fb0)] - **doc**: fix overstated Date header requirement in response.sendDate (Kit Dallege) [#62206](nodejs/node#62206) - \[[`9caa7855b2`](nodejs/node@9caa7855b2)] - **doc**: fix guaranteed typo (lilianakatrina684-a11y) [#62374](nodejs/node#62374) - \[[`e254f65306`](nodejs/node@e254f65306)] - **doc**: enhance clarification about the main field (Mowafak Almahaini) [#62302](nodejs/node#62302) - \[[`9e724b53f8`](nodejs/node@9e724b53f8)] - **doc**: remove spawn with shell example from bat/cmd section (Kit Dallege) [#62243](nodejs/node#62243) - \[[`7f37c17516`](nodejs/node@7f37c17516)] - **doc**: minor typo fix (Jeff Matson) [#62358](nodejs/node#62358) - \[[`eb0ca98f01`](nodejs/node@eb0ca98f01)] - **doc**: add path to vulnerabilities.json mention (Rafael Gonzaga) [#62355](nodejs/node#62355) - \[[`198b6e0932`](nodejs/node@198b6e0932)] - **doc**: deprecate CryptoKey use in node:crypto (Filip Skokan) [#62321](nodejs/node#62321) - \[[`17e5aee6c5`](nodejs/node@17e5aee6c5)] - **doc**: fix small environment\_variables typo (chris) [#62279](nodejs/node#62279) - \[[`193d629895`](nodejs/node@193d629895)] - **doc**: test and test-only targets do not run linter (Xavier Stouder) [#62120](nodejs/node#62120) - \[[`4a1f20ec4a`](nodejs/node@4a1f20ec4a)] - **doc**: clarify fs.ReadStream and fs.WriteStream are not constructable (Kit Dallege) [#62208](nodejs/node#62208) - \[[`f976c9214d`](nodejs/node@f976c9214d)] - **doc**: clarify that any truthy value of `shell` is part of DEP0190 (Antoine du Hamel) [#62249](nodejs/node#62249) - \[[`4d83972681`](nodejs/node@4d83972681)] - **doc**: remove outdated Chrome 66 and ndb references from debugger (Kit Dallege) [#62202](nodejs/node#62202) - \[[`71f2eada5b`](nodejs/node@71f2eada5b)] - **doc**: add throwIfNoEntry version history to fs.stat (kovan) [#62204](nodejs/node#62204) - \[[`670c80893b`](nodejs/node@670c80893b)] - **doc**: add note (and caveat) for `mock.module` about customization hooks (Jacob Smith) [#62075](nodejs/node#62075) - \[[`2ff5cb13f5`](nodejs/node@2ff5cb13f5)] - **doc,test**: clarify --eval syntax for leading '-' scripts (kovan) [#62244](nodejs/node#62244) - \[[`6c6c9004c4`](nodejs/node@6c6c9004c4)] - **esm**: fix typo in worker loader hook comment (jakecastelli) [#62475](nodejs/node#62475) - \[[`1cdd23c9f3`](nodejs/node@1cdd23c9f3)] - **esm**: fix source phase identity bug in loadCache eviction (Guy Bedford) [#62415](nodejs/node#62415) - \[[`4f4ff15794`](nodejs/node@4f4ff15794)] - **esm**: fix path normalization in `finalizeResolution` (Antoine du Hamel) [#62080](nodejs/node#62080) - \[[`088167d102`](nodejs/node@088167d102)] - **events**: avoid cloning listeners array on every emit (Gürgün Dayıoğlu) [#62261](nodejs/node#62261) - \[[`0250b436ee`](nodejs/node@0250b436ee)] - **fs**: fix cpSync to handle non-ASCII characters (Stefan Stojanovic) [#61950](nodejs/node#61950) - \[[`b67a8fb171`](nodejs/node@b67a8fb171)] - **inspector**: add Target.getTargets and extract TargetManager (Kohei) [#62487](nodejs/node#62487) - \[[`ffcc5a5722`](nodejs/node@ffcc5a5722)] - **lib**: make SubtleCrypto.supports enumerable (Filip Skokan) [#62307](nodejs/node#62307) - \[[`92ef2ad8fa`](nodejs/node@92ef2ad8fa)] - **lib**: prefer primordials in SubtleCrypto (Filip Skokan) [#62226](nodejs/node#62226) - \[[`40a43ac4d0`](nodejs/node@40a43ac4d0)] - **module**: fix coverage of mocked CJS modules imported from ESM (Marco) [#62133](nodejs/node#62133) - \[[`3ef0a5b90e`](nodejs/node@3ef0a5b90e)] - **quic**: remove CryptoKey support from session keys option (Filip Skokan) [#62335](nodejs/node#62335) - \[[`3c8dd8eb8e`](nodejs/node@3c8dd8eb8e)] - **repl**: use vm DONT\_CONTEXTIFY context (Chengzhong Wu) [#62371](nodejs/node#62371) - \[[`f85b9d9fa8`](nodejs/node@f85b9d9fa8)] - **(SEMVER-MINOR)** **repl**: add customizable error handling (Anna Henningsen) [#62188](nodejs/node#62188) - \[[`e4c164e045`](nodejs/node@e4c164e045)] - **repl**: handle exceptions from async context after close (Anna Henningsen) [#62165](nodejs/node#62165) - \[[`67b854d407`](nodejs/node@67b854d407)] - **(SEMVER-MINOR)** **repl**: remove dependency on domain module (Matteo Collina) [#61227](nodejs/node#61227) - \[[`966b700623`](nodejs/node@966b700623)] - **(SEMVER-MINOR)** **sea**: support code cache for ESM entrypoint in SEA (Joyee Cheung) [#62158](nodejs/node#62158) - \[[`fe82baf970`](nodejs/node@fe82baf970)] - **src**: improve EC JWK import performance (Filip Skokan) [#62396](nodejs/node#62396) - \[[`d490b171e0`](nodejs/node@d490b171e0)] - **src**: handle null backing store in ArrayBufferViewContents::Read (Mert Can Altin) [#62343](nodejs/node#62343) - \[[`0e4af848bc`](nodejs/node@0e4af848bc)] - **src**: convert context\_frame field in AsyncWrap to internal field (Anna Henningsen) [#62103](nodejs/node#62103) - \[[`02980b8c8f`](nodejs/node@02980b8c8f)] - **src**: enable compilation/linking with OpenSSL 4.0 (Filip Skokan) [#62410](nodejs/node#62410) - \[[`064f7c2fa6`](nodejs/node@064f7c2fa6)] - **src**: use stack allocation in indexOf latin1 path (Mert Can Altin) [#62268](nodejs/node#62268) - \[[`ede52bc2dc`](nodejs/node@ede52bc2dc)] - **src,sqlite**: fix filterFunc dangling reference (Edy Silva) [#62281](nodejs/node#62281) - \[[`e1f0d2a014`](nodejs/node@e1f0d2a014)] - **(SEMVER-MINOR)** **stream**: add stream/iter Implementation (James M Snell) [#62066](nodejs/node#62066) - \[[`03839fb087`](nodejs/node@03839fb087)] - **stream**: preserve error over AbortError in pipeline (Marco) [#62113](nodejs/node#62113) - \[[`0000d2f011`](nodejs/node@0000d2f011)] - **stream**: replace bind with arrow function for onwrite callback (Ali Hassan) [#62087](nodejs/node#62087) - \[[`3796a73719`](nodejs/node@3796a73719)] - **test**: update WPT for WebCryptoAPI to [`2cb332d`](nodejs/node@2cb332d710) (Node.js GitHub Bot) [#62483](nodejs/node#62483) - \[[`ad8309415b`](nodejs/node@ad8309415b)] - **test**: update WPT for url to [`fc3e651`](nodejs/node@fc3e651593) (Node.js GitHub Bot) [#62379](nodejs/node#62379) - \[[`bed89b037e`](nodejs/node@bed89b037e)] - **test**: wait for reattach before initial break on restart (Yuya Inoue) [#62471](nodejs/node#62471) - \[[`c9ffffcc55`](nodejs/node@c9ffffcc55)] - **test**: disable flaky WPT Blob test on AIX (James M Snell) [#62470](nodejs/node#62470) - \[[`fd41ef31f6`](nodejs/node@fd41ef31f6)] - **(SEMVER-MINOR)** **test**: add tests for experimental stream/iter implementation (James M Snell) [#62066](nodejs/node#62066) - \[[`1b9d8d3eec`](nodejs/node@1b9d8d3eec)] - **test**: avoid flaky run wait in debugger restart test (Yuya Inoue) [#62112](nodejs/node#62112) - \[[`cb08a29d51`](nodejs/node@cb08a29d51)] - **test**: skip test-cluster-dgram-reuse on AIX 7.3 (Stewart X Addison) [#62238](nodejs/node#62238) - \[[`abea0af8a9`](nodejs/node@abea0af8a9)] - **test**: add WebCrypto Promise.prototype.then pollution regression tests (Filip Skokan) [#62226](nodejs/node#62226) - \[[`47a2132269`](nodejs/node@47a2132269)] - **test**: update WPT for WebCryptoAPI to [`6a1c545`](nodejs/node@6a1c545d77) (Node.js GitHub Bot) [#62187](nodejs/node#62187) - \[[`2c63d3006c`](nodejs/node@2c63d3006c)] - **test\_runner**: add exports option for module mocks (sangwook) [#61727](nodejs/node#61727) - \[[`44ac0e1302`](nodejs/node@44ac0e1302)] - **test\_runner**: make it compatible with fake timers (Matteo Collina) [#59272](nodejs/node#59272) - \[[`1865691275`](nodejs/node@1865691275)] - **test\_runner**: set non-zero exit code when suite errors occur (Edy Silva) [#62282](nodejs/node#62282) - \[[`0252b2bab8`](nodejs/node@0252b2bab8)] - **tools**: bump picomatch from 4.0.3 to 4.0.4 in /tools/eslint (dependabot\[bot]) [#62439](nodejs/node#62439) - \[[`3368155267`](nodejs/node@3368155267)] - **tools**: bump yaml from 2.8.2 to 2.8.3 in /tools/doc (dependabot\[bot]) [#62437](nodejs/node#62437) - \[[`5e47c359f5`](nodejs/node@5e47c359f5)] - **tools**: adopt the `--check-for-duplicates` NCU flag (Antoine du Hamel) [#62478](nodejs/node#62478) - \[[`4a604e82d0`](nodejs/node@4a604e82d0)] - **tools**: bump picomatch in /tools/doc (dependabot\[bot]) [#62438](nodejs/node#62438) - \[[`d1a98b4ddb`](nodejs/node@d1a98b4ddb)] - **tools**: bump flatted from 3.4.1 to 3.4.2 in /tools/eslint (dependabot\[bot]) [#62375](nodejs/node#62375) - \[[`c32daa1ab4`](nodejs/node@c32daa1ab4)] - **tools**: bump eslint deps (Huáng Jùnliàng) [#62356](nodejs/node#62356) - \[[`7a2fcc6d41`](nodejs/node@7a2fcc6d41)] - **tools**: do not swallow error in `lint-nix` workflow (Antoine du Hamel) [#62292](nodejs/node#62292) - \[[`c41a2871b5`](nodejs/node@c41a2871b5)] - **tools**: add eslint-plugin-regexp (Huáng Jùnliàng) [#62093](nodejs/node#62093) - \[[`56dfeb06df`](nodejs/node@56dfeb06df)] - **tools**: fix timeout errors in `lint-nix` job (Antoine du Hamel) [#62265](nodejs/node#62265) - \[[`22fc8078e8`](nodejs/node@22fc8078e8)] - **tools**: bump flatted from 3.3.3 to 3.4.1 in /tools/eslint (dependabot\[bot]) [#62255](nodejs/node#62255) - \[[`409b0663bd`](nodejs/node@409b0663bd)] - **tools**: bump undici from 6.23.0 to 6.24.1 in /tools/doc (dependabot\[bot]) [#62250](nodejs/node#62250) - \[[`67c69750f4`](nodejs/node@67c69750f4)] - **tools**: validate all commits that are pushed to `main` (Antoine du Hamel) [#62246](nodejs/node#62246) - \[[`7d9db8cd21`](nodejs/node@7d9db8cd21)] - **tools**: keep GN files when updating Merve (Antoine du Hamel) [#62167](nodejs/node#62167) - \[[`6c8fa42ba2`](nodejs/node@6c8fa42ba2)] - **typings**: rationalise TypedArray types (René) [#62174](nodejs/node#62174) - \[[`531c64d04e`](nodejs/node@531c64d04e)] - **url**: enable simdutf for ada (Yagiz Nizipli) [#61477](nodejs/node#61477) - \[[`2000caccde`](nodejs/node@2000caccde)] - **util**: allow color aliases in styleText (sangwook) [#62180](nodejs/node#62180) - \[[`0aed332ab4`](nodejs/node@0aed332ab4)] - **wasm**: support js string constant esm import (Guy Bedford) [#62198](nodejs/node#62198) - \[[`d3fd4a978b`](nodejs/node@d3fd4a978b)] - **worker**: heap profile optimizations (Ilyas Shabi) [#62201](nodejs/node#62201) - \[[`e992a34a18`](nodejs/node@e992a34a18)] - **zlib**: fix use-after-free when reset() is called during write (Matteo Collina) [#62325](nodejs/node#62325) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this MR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).

Notable changes: async_hooks: * (SEMVER-MINOR) add using scopes to `AsyncLocalStorage` (Stephen Belanger) nodejs#61674 cli: * (SEMVER-MINOR) add `--max-heap-size` option (tannal) nodejs#58708 crypto: * (SEMVER-MINOR) add TurboSHAKE and KangarooTwelve Web Cryptography algorithms (Filip Skokan) nodejs#62183 repl: * (SEMVER-MINOR) add customizable error handling (Anna Henningsen) nodejs#62188 * (SEMVER-MINOR) remove dependency on `node:domain` (Matteo Collina) nodejs#61227 sea: * (SEMVER-MINOR) support code cache for ESM entrypoint in SEA (Joyee Cheung) nodejs#62158 stream: * (SEMVER-MINOR) add stream/iter Implementation (James M Snell) nodejs#62066 test_runner: * add exports option for module mocks (sangwook) nodejs#61727 PR-URL: nodejs#62522

The initial support for ESM entrypoint in SEA didn't support code cache. This patch implements that by following a path similar to how code cache in CJS SEA entrypoint is supported: at build time we generate the code cache from C++ and put it into the sea blob, and at runtime we consume it via a special case in compilation routines - for CJS this was CompileFunctionForCJSLoader, in the case of SourceTextModule, it's in Module::New. PR-URL: nodejs#62158 Refs: nodejs#61813 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. single-executable Issues and PRs related to single-executable applications labels Mar 8, 2026

joyeecheung commented Mar 8, 2026

View reviewed changes

joyeecheung force-pushed the esm-sea-code-cache branch from 6e05770 to 57e7b9f Compare March 8, 2026 21:54

mcollina approved these changes Mar 8, 2026

View reviewed changes

aymen94 approved these changes Mar 9, 2026

View reviewed changes

joyeecheung added the request-ci Add this label to start a Jenkins CI on a PR. label Mar 9, 2026

github-actions Bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Mar 9, 2026

addaleax approved these changes Mar 9, 2026

View reviewed changes

joyeecheung added commit-queue Add this label to land a pull request using GitHub Actions. notable-change PRs with changes that should be highlighted in changelogs. labels Mar 10, 2026

joyeecheung added the semver-minor PRs that contain new features and should be released in the next minor version. label Mar 10, 2026

nodejs-github-bot removed the commit-queue Add this label to land a pull request using GitHub Actions. label Mar 10, 2026

nodejs-github-bot merged commit 9ff27fd into nodejs:main Mar 10, 2026
74 checks passed

lpinca mentioned this pull request Mar 29, 2026

Revert "deps: update libuv to 1.52.1" #62497

Closed

github-actions Bot mentioned this pull request Mar 31, 2026

2026-04-01, Version 25.9.0 (Current) #62522

Merged

aduh95 mentioned this pull request Apr 4, 2026

[v24.x backport] sea: add --build-sea and support ESM entry point #62190

Open

This was referenced Apr 4, 2026

[javascript] Update Node.js to v25.9.0 hayat01sh1da/coding-tests#41

Merged

[javascript] Update Node.js to v25.9.0 hayat01sh1da/tutorials#206

Merged

aduh95 added the backport-open-v24.x Indicate that the PR has an open backport label Apr 5, 2026

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

sea: support code cache for ESM entrypoint in SEA#62158

sea: support code cache for ESM entrypoint in SEA#62158
nodejs-github-bot merged 1 commit into
nodejs:mainnodejs/node:mainfrom
joyeecheung:esm-sea-code-cachejoyeecheung/node:esm-sea-code-cacheCopy head branch name to clipboard

joyeecheung commented Mar 8, 2026 •

edited

Loading

Uh oh!

nodejs-github-bot commented Mar 8, 2026

Uh oh!

joyeecheung Mar 8, 2026

Uh oh!

mcollina left a comment

Uh oh!

codecov Bot commented Mar 8, 2026 •

edited

Loading

Uh oh!

nodejs-github-bot commented Mar 9, 2026

Uh oh!

nodejs-github-bot commented Mar 9, 2026

Uh oh!

nodejs-github-bot commented Mar 10, 2026

Uh oh!

github-actions Bot commented Mar 10, 2026

Uh oh!

Uh oh!

nodejs-github-bot commented Mar 10, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

6 participants

Search code, repositories, users, issues, pull requests...

Uh oh!

Conversation

joyeecheung commented Mar 8, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

nodejs-github-bot commented Mar 8, 2026

Uh oh!

joyeecheung Mar 8, 2026

Choose a reason for hiding this comment

Uh oh!

mcollina left a comment

Choose a reason for hiding this comment

Uh oh!

codecov Bot commented Mar 8, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Codecov Report

Uh oh!

nodejs-github-bot commented Mar 9, 2026

Uh oh!

nodejs-github-bot commented Mar 9, 2026

Uh oh!

nodejs-github-bot commented Mar 10, 2026

Uh oh!

github-actions Bot commented Mar 10, 2026

Uh oh!

Uh oh!

nodejs-github-bot commented Mar 10, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

6 participants

joyeecheung commented Mar 8, 2026 •

edited

Loading

codecov Bot commented Mar 8, 2026 •

edited

Loading