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fs: add Temporal.Instant support to Stats and BigIntStats - #60789

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fs: add Temporal.Instant support to Stats and BigIntStats#60789
nodejs-github-bot merged 6 commits into
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Refs: #57891

This is a very rough draft, and probably shouldn't land until Temporal implementation is finalized and/or enabled by default.
Opening early to see if there are any objections, suggestions to naming (the *Instant properties are facing userspace and having consistent convention would be nice), or to implementation.

@LiviaMedeirosLiviaMedeiros added fs Issues and PRs related to the fs subsystem / file system. experimental Issues and PRs related to experimental features. labels Nov 20, 2025
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Renegade334 commented Nov 20, 2025

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Since Date.prototype.toInstant() comes along with Temporal, these are fairly trivial to obtain anyway? (Although come to think of it, this would lose nanosecond precision.)

It might be better to have this as a switchable option similar to bigint, rather than adding the overhead of building a load of Temporal objects for every stats call?

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Since Date.prototype.toInstant() comes along with Temporal, these are fairly trivial to obtain anyway?

Converting from Date would have performance overhead on top of precision loss.

It might be better to have this as a switchable option similar to bigint, rather than adding the overhead of building a load of Temporal objects for every stats call?

These properties are lazy-loaded, so the overhead when not used should be minimal.

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Comment threadlib/internal/fs/utils.js Outdated
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LiviaMedeiros marked this pull request as ready for review May 14, 2026 20:07
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Codecov Report

❌ Patch coverage is 90.34483% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (a9b0a83) to head (4faf476).
⚠️ Report is 12 commits behind head on main.

Files with missing linesPatch %Lines
lib/internal/fs/utils.js90.20%14 Missing ⚠️
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@@ Coverage Diff @@## main #60789 +/- ##
========================================
Coverage 90.06% 90.07% ========================================
Files 714 714 Lines 225629 225876 +247 Branches 42702 42742 +40 ========================================
+ Hits 203211 203448 +237 + Misses 14232 14205 -27 - Partials 8186 8223 +37 
Files with missing linesCoverage Δ
lib/internal/errors.js97.65% <100.00%> (+<0.01%)⬆️
lib/internal/fs/utils.js98.43% <90.20%> (-1.25%)⬇️

... and 68 files with indirect coverage changes

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@aduh95aduh95 added semver-minor PRs that contain new features and should be released in the next minor version. dont-land-on-v22.x PRs that should not land on the v22.x-staging branch and should not be released in v22.x. dont-land-on-v24.x PRs that should not land on the v24.x-staging branch and should not be released in v24.x. dont-land-on-v25.x labels May 15, 2026
Signed-off-by: LiviaMedeiros <livia@cirno.name>
Comment threadlib/internal/fs/utils.js Outdated
Symbol,
TypedArrayPrototypeAt,
TypedArrayPrototypeIncludes,
globalThis,

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Suggested change
globalThis,
globalThis: {
Temporal,
},

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Unfortunately this doesn't seem to work since at this point of bootstrapping Temporal is not defined yet.
Same goes for const { Temporal } = globalThis; on top level of the file.

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@LiviaMedeirosLiviaMedeiros added the request-ci Add this label to start a Jenkins CI on a PR. label May 18, 2026
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@aduh95aduh95 added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. commit-queue Add this label to land a pull request using GitHub Actions. commit-queue-squash Add this label to instruct the Commit Queue to squash all the PR commits into the first one. labels May 18, 2026
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nodejs-github-bot merged commit 4ee7567 into nodejs:mainMay 18, 2026
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Landed in 4ee7567

aduh95 pushed a commit that referenced this pull request May 19, 2026
Signed-off-by: LiviaMedeiros <livia@cirno.name>
PR-URL: #60789
Refs: #57891
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
aduh95 pushed a commit that referenced this pull request May 19, 2026
Signed-off-by: LiviaMedeiros <livia@cirno.name>
PR-URL: #60789
Refs: #57891
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
nodejs-github-bot added a commit that referenced this pull request May 19, 2026
Notable changes:
doc:
* mark stream.compose stable (Matteo Collina) #62562
fs:
* (SEMVER-MINOR) add `Temporal.Instant` support to `Stats` and `BigIntStats` (Livia Medeiros) #60789
http:
* (SEMVER-MINOR) add writeInformation to send arbitrary 1xx status codes (Tim Perry) #63155
PR-URL: #63440
aduh95 added a commit that referenced this pull request May 20, 2026
Notable changes:
doc:
* mark `stream.compose` stable (Matteo Collina) #62562
fs:
* (SEMVER-MINOR) add `Temporal.Instant` support to `Stats` and `BigIntStats` (Livia Medeiros) #60789
http:
* (SEMVER-MINOR) add `writeInformation` to send arbitrary 1xx status codes (Tim Perry) #63155
PR-URL: #63440
aduh95 added a commit that referenced this pull request May 20, 2026
Notable changes:
doc:
* mark `stream.compose` stable (Matteo Collina) #62562
fs:
* (SEMVER-MINOR) add `Temporal.Instant` support to `Stats` and `BigIntStats` (Livia Medeiros) #60789
http:
* (SEMVER-MINOR) add `writeInformation` to send arbitrary 1xx status codes (Tim Perry) #63155
PR-URL: #63440
jylenhof pushed a commit to jylenhof/mise-update-tool that referenced this pull request Aug 4, 2026
Automated mise tool upgrades from local config.
Updated tools:
- `action-validator`
- `actionlint`
- `aube`
- `editorconfig-checker`
- `ghalint`
- `node`
- `pinact`
- `pipx:gh-action-pulse`
- `prek`
- `rumdl`
- `shellcheck`
- `shfmt`
- `tombi`
- `uv`
- `yamlfmt`
- `yamllint`
- `zizmor`
Command: `mise upgrade --bump --local action-validator actionlint aube editorconfig-checker ghalint node pinact pipx:gh-action-pulse prek rumdl shellcheck shfmt tombi uv yamlfmt yamllint zizmor`
<details>
<summary>Version changelog (node)</summary>
| Tool | Requested | Installed |
|------|-----------|-----------|
| `node` | `24` → `26` | `24.18.1` → `26.5.1` |
</details>
<details>
<summary>Release notes (1 tools)</summary>
<details>
<summary>node: `24.18.1` → `26.5.1` (nodejs/node)</summary>
### v25.8.2
This is a security release.
### Notable Changes
* (CVE-2026-21637) wrap `SNICallback` invocation in `try`/`catch` (Matteo Collina) - High
* (CVE-2026-21710) use null prototype for `headersDistinct`/`trailersDistinct` (Matteo Collina) - High
* (CVE-2026-21711) include permission check to `pipe_wrap.cc` (RafaelGSS) - Medium
* (CVE-2026-21712) handle url crash on different url formats (RafaelGSS) - Medium
* (CVE-2026-21713) use timing-safe comparison in Web Cryptography HMAC and KMAC (Filip Skokan) - Medium
* (CVE-2026-21714) handle `NGHTTP2_ERR_FLOW_CONTROL` error code (RafaelGSS) - Medium
* (CVE-2026-21717) test array index hash collision (Joyee Cheung) - Medium
* (CVE-2026-21715) add permission check to `realpath.native` (RafaelGSS) - Low
* (CVE-2026-21716) include permission check on `lib/fs/promises` (RafaelGSS) - Low
### Commits
* \[[`2086b7477b`](nodejs/node@2086b7477b)] - **(CVE-2026-21717)** **build,test**: test array index hash collision (Joyee Cheung) [nodejs-private/node-private#834](https://github.com/nodejs-private/node-private/pull/834)
* \[[`0f9332a40a`](nodejs/node@0f9332a40a)] - **(CVE-2026-21713)** **crypto**: use timing-safe comparison in Web Cryptography HMAC and KMAC (Filip Skokan) [nodejs-private/node-private#822](https://github.com/nodejs-private/node-private/pull/822)
* \[[`2b6937ddb2`](nodejs/node@2b6937ddb2)] - **deps**: update undici to 7.24.4 (Node.js GitHub Bot) [#62271](nodejs/node#62271)
* \[[`bfb8ad5787`](nodejs/node@bfb8ad5787)] - **deps**: update undici to 7.24.3 (Node.js GitHub Bot) [#62233](nodejs/node#62233)
* \[[`be6384727f`](nodejs/node@be6384727f)] - **deps**: upgrade npm to 11.11.1 (npm team) [#62216](nodejs/node#62216)
* \[[`2feea5bb97`](nodejs/node@2feea5bb97)] - **deps**: V8: override… (truncated)
### 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)
*… (truncated)
### v26.0.0
We're excited to announce the release of Node.js 26! Highlights include the Temporal API enabled by default,
updates to the V8 JavaScript engine to 14.6, Undici to 8.0, and several important deprecations and removals
as we continue to modernize the platform.
As a reminder, Node.js 26 will enter long-term support (LTS) in October, but until then, it will be the "Current" release for the next six months.
We encourage you to explore the new features and benefits offered by this latest release and evaluate their potential impact on your applications.
### Notable Changes
#### Temporal API
The Temporal API is now enabled by default in Node.js 26. Temporal is a modern date/time API for JavaScript
that provides a more robust and feature-rich alternative to the legacy `Date` object.
Contributed by Richard Lau in [#61806](nodejs/node#61806).
#### V8 14.6
The V8 engine is updated to version 14.6.202.33, which is part of Chromium 134.
This version also includes:
* Upsert (<https://github.com/tc39/proposal-upsert>): `[Weak]Map.prototype.getOrInsert()`, `[Weak]Map.prototype.getOrInsertComputed()`
* Iterator sequencing (<https://github.com/tc39/proposal-iterator-sequencing>): `Iterator.concat()`
Contributed by Michaël Zasso in [#61898](nodejs/node#61898).
#### Undici 8
Undici has been updated to version 8.0.2, bringing new features and improvements to Node.js's HTTP client implementation.
#### Deprecations and Removals
* \[[`dff46c07c3`](nodejs/node@dff46c07c3)] - **(SEMVER-MAJOR)** **crypto**: move DEP0182 to End-of-Life (Tobias Nießen) [#61084](nodejs/node#61084)
* \[[`93c25815ee`](nodejs/node@93c25815ee)] - **(SEMVER-MAJOR)** **http**: move writeHeader to end-of-life (Sebastian Beltran) [#60635](nodejs/node#60635)
`http.Server.prototype.writeHeader()` is now fully removed. Use `http.Server.prototype.write… (truncated)
### v26.1.0
### Notable Changes
#### Experimental `node:ffi` module
Node.js now includes an experimental `node:ffi` module for loading dynamic
libraries and calling native symbols from JavaScript.
The API is gated behind the `--experimental-ffi` flag and, when the Permission
Model is enabled, requires `--allow-ffi`.
This API is inherently unsafe. Invalid pointers, incorrect signatures, or accessing memory
after it has been freed can crash the process or corrupt memory.
Contributed by Paolo Insogna in [#62072](nodejs/node#62072).
#### Other Notable Changes
* \[[`34a6454fe3`](nodejs/node@34a6454fe3)] - **(SEMVER-MINOR)** **buffer**: add `end` parameter (Robert Nagy) [#62390](nodejs/node#62390)
* \[[`073e84d7fe`](nodejs/node@073e84d7fe)] - **(SEMVER-MINOR)** **crypto**: accept key data in `crypto.diffieHellman()` and cleanup DH jobs (Filip Skokan) [#62527](nodejs/node#62527)
* \[[`5b9cb10a5f`](nodejs/node@5b9cb10a5f)] - **(SEMVER-MINOR)** **crypto**: implement `randomUUIDv7()` (nabeel378) [#62553](nodejs/node#62553)
* \[[`98f9becd16`](nodejs/node@98f9becd16)] - **(SEMVER-MINOR)** **debugger**: add edit-free runtime expression probes to `node inspect` (Joyee Cheung) [#62713](nodejs/node#62713)
* \[[`06defaa2ea`](nodejs/node@06defaa2ea)] - **(SEMVER-MINOR)** **fs**: add `signal` option to `fs.stat()` (Mert Can Altin) [#57775](nodejs/node#57775)
* \[[`db66a963bf`](nodejs/node@db66a963bf)] - **(SEMVER-MINOR)** **fs**: expose `frsize` field in `statfs` (Jinho Jang) [#62277](nodejs/node#62277)
* \[[`87adb3472b`](nodejs/node@87adb3472b)] - **(SEMVER-MINOR)** **http**: harden `ClientRequest` options merge (Matteo Collina) [#6… (truncated)
### v26.2.0
### Notable Changes
* \[[`189d43a193`](nodejs/node@189d43a193)] - **doc**: mark `stream.compose` stable (Matteo Collina) [#62562](nodejs/node#62562)
* \[[`f858c6140e`](nodejs/node@f858c6140e)] - **(SEMVER-MINOR)** **fs**: add `Temporal.Instant` support to `Stats` and `BigIntStats` (Livia Medeiros) [#60789](nodejs/node#60789)
* \[[`0cbb3895df`](nodejs/node@0cbb3895df)] - **(SEMVER-MINOR)** **http**: add `writeInformation` to send arbitrary 1xx status codes (Tim Perry) [#63155](nodejs/node#63155)
### Commits
* \[[`9a394bab84`](nodejs/node@9a394bab84)] - **benchmark**: respect stream/iter broadcast backpressure (Trivikram Kamat) [#63314](nodejs/node#63314)
* \[[`ad98b4620b`](nodejs/node@ad98b4620b)] - **crypto**: align verifyOneShot accepted types (Anshika Jain) [#63280](nodejs/node#63280)
* \[[`ba0736a847`](nodejs/node@ba0736a847)] - **crypto**: wire ML-DSA and ML-KEM for use when using BoringSSL (Filip Skokan) [#63255](nodejs/node#63255)
* \[[`5573a6a4a8`](nodejs/node@5573a6a4a8)] - **crypto**: wire ChaCha20-Poly1305 in Web Cryptography when using BoringSSL (Filip Skokan) [#63255](nodejs/node#63255)
* \[[`7dc563b8d6`](nodejs/node@7dc563b8d6)] - **crypto**: wire AES-KW in Web Cryptography when using BoringSSL (Filip Skokan) [#63255](nodejs/node#63255)
* \[[`b55e2b1f4d`](nodejs/node@b55e2b1f4d)] - **crypto**: improve system certificate enumeration logic on macOS (Robo) [#62576](nodejs/node#62576)
* \[[`fd509a755a`](nodejs/node@fd509a755a)] - **crypto**: harden CryptoKey algorithm slots… (truncated)
### v26.3.0
### Notable Changes
#### Potential changes to macOS Universal Binary availability
With Apple and its ecosystem progressively dropping support for Intel-based
architectures, it has become apparent that the Node.js project may not be able
to maintain the universal binaries we currently distribute for the full lifetime
of Node.js 26. This change serves to communicate that risk. At present, our
intention remains to continue shipping universal binaries supporting both Apple
Silicon and Intel-based Macs for as long as practical.
Contributed by Antoine du Hamel in [#63055](nodejs/node#63055).
#### Other notable changes
* \[[`a2a4b33dd8`](nodejs/node@a2a4b33dd8)] - **(SEMVER-MINOR)** **buffer**: increase `Buffer.poolSize` default to 64 KiB (Matteo Collina) [#63597](nodejs/node#63597)
* \[[`051a2152f7`](nodejs/node@051a2152f7)] - **crypto**: update root certificates to NSS 3.123.1 (Node.js GitHub Bot) [#63527](nodejs/node#63527)
* \[[`49462eca37`](nodejs/node@49462eca37)] - **(SEMVER-MINOR)** **http**: add `httpValidation` option to configure header value validation (RajeshKumar11) [#61597](nodejs/node#61597)
* \[[`97b7ab19bd`](nodejs/node@97b7ab19bd)] - **(SEMVER-MINOR)** **inspector**: expose precise coverage start to JS runtime (sangwook) [#63079](nodejs/node#63079)
* \[[`cfb80a2103`](nodejs/node@cfb80a2103)] - **(SEMVER-MINOR)** **lib,permission**: add `permission.drop` (Rafael Gonzaga) [#62672](nodejs/node#62672)
### Commits
* \[[`a2a4b33dd8`](nodejs/node@a2a4b33dd8)] - **(SEMVER-MINOR)** **buffer**: increase Buffer.poolSize default to 64 KiB (Matteo Collina) [#63597](nodejs/node#63597)
* \[[`0eff3e23b9`](https://github.com/nodejs/n… (truncated)
### v26.3.1
This is a security release.
### Notable Changes
* (CVE-2026-48618) tls: normalize hostname for server identity checks (Matteo Collina) – High
* (CVE-2026-48933) crypto: guard WebCrypto cipher output length (Filip Skokan) – High
* (CVE-2026-48615) lib,test: redact proxy credentials in tunnel errors (Matteo Collina) – Medium
* (CVE-2026-48619) http2: cap originSet size to prevent unbounded memory growth (Matteo Collina) – Medium
* (CVE-2026-48928) tls: fix case-sensitive SNI context matching (Matteo Collina) – Medium
* (CVE-2026-48930) dns,net: reject hostnames with embedded NUL bytes (Matteo Collina) – Medium
* (CVE-2026-48934) tls: bind reusable sessions to authenticated host (Matteo Collina) – Medium
* (CVE-2026-48617) permission: handle process.chdir on writereport (RafaelGSS) – Low
* (CVE-2026-48931) http: fix response queue poisoning in http.Agent (Matteo Collina) – Low
* (CVE-2026-48935) permission: disable FileHandle utimes with permission model (RafaelGSS) – Low
* (CVE-2026-48936) permission: guard pipe open and chmod with net scope (RafaelGSS) – Low
### Commits
* \[[`98fbc89211`](nodejs/node@98fbc89211)] - **(CVE-2026-48933)** **crypto**: guard WebCrypto cipher output length (Filip Skokan) [nodejs-private/node-private#878](https://github.com/nodejs-private/node-private/pull/878)
* \[[`110840f2c7`](nodejs/node@110840f2c7)] - **deps**: update llhttp to 9.4.2 (Antoine du Hamel) [nodejs-private/node-private#890](https://github.com/nodejs-private/node-private/pull/890)
* \[[`8d36d522b2`](nodejs/node@8d36d522b2)] - **deps**: update undici to 8.5.0 (Node.js GitHub Bot) [#63903](nodejs/node#63903)
* \[[`2e6d03993a`](nodejs/node@2e6d03993a)] - **deps**: update undici to 8.4.0 (Node.js GitHub Bot) [#63779](nodejs/node#63779)
* \[[`5a17d5b07a`](nodejs/node@5a17d5b07a)] - **deps… (truncated)
### v26.4.0
### Notable Changes
* \[[`cde0daabcc`](nodejs/node@cde0daabcc)] - **(SEMVER-MINOR)** **doc**: update `blockList` stability status to release candidate (alphaleadership) [#63050](nodejs/node#63050)
* \[[`b78f5a7537`](nodejs/node@b78f5a7537)] - **(SEMVER-MINOR)** **fs**: support caller-supplied `readFile()` buffers (Matteo Collina) [#63634](nodejs/node#63634)
* \[[`417aacbc36`](nodejs/node@417aacbc36)] - **(SEMVER-MINOR)** **http**: close pre-request sockets in `closeIdleConnections` (semimikoh) [#63470](nodejs/node#63470)
* \[[`fbb108be7d`](nodejs/node@fbb108be7d)] - **(SEMVER-MINOR)** **loader**: implement package maps (Maël Nison) [#62239](nodejs/node#62239)
* \[[`45494d5a8a`](nodejs/node@45494d5a8a)] - **(SEMVER-MINOR)** **net**: support `TCP_KEEPINTVL` and `TCP_KEEPCNT` in `setKeepAlive` (Guy Bedford) [#63825](nodejs/node#63825)
* \[[`ee29465e77`](nodejs/node@ee29465e77)] - **(SEMVER-MINOR)** **tls**: add certificateCompression option (Tim Perry) [#62217](nodejs/node#62217)
* \[[`b17817eb2b`](nodejs/node@b17817eb2b)] - **(SEMVER-MINOR)** **vfs**: dispatch `node:fs/promises` to mounted VFS instances (Matteo Collina) [#63537](nodejs/node#63537)
* \[[`7bc93a6ac5`](nodejs/node@7bc93a6ac5)] - **(SEMVER-MINOR)** **vfs**: add minimal `node:vfs` subsystem (Matteo Collina) [#63115](nodejs/node#63115)
### Commits
* \[[`c7eb83b46a`](nodejs/node@c7eb83b46a)] - **benchmark**: add child\_process async path baselines (Yagiz Nizipli) [#63929](nodejs/node#63929)
* \[[`066fff17a5`](https://github.com/nodejs/node/commit/066f… (truncated)
### v26.5.0
### Notable Changes
#### New release key
Welcome to our newest releaser, [Stewart X Addison](https://github.com/sxa). Future Node.js releases may be signed with his [release key](https://github.com/nodejs/node/blob/main/README.md#release-keys), `655F3B5C1FB3FA8D1A0CA6BDE4A7D232B936D2FD`.
#### Other notable changes
* \[[`55f48446c7`](nodejs/node@55f48446c7)] - **(SEMVER-MINOR)** **buffer**: implement blob.textStream() (Matthew Aitken) [#64036](nodejs/node#64036)
* \[[`b373202efc`](nodejs/node@b373202efc)] - **(SEMVER-MINOR)** **esm**: add `--experimental-import-text` flag (Efe) [#62300](nodejs/node#62300)
* \[[`39e0c14455`](nodejs/node@39e0c14455)] - **(SEMVER-MINOR)** **perf\_hooks**: sample delay per event loop iteration (Pablo Erhard) [#62935](nodejs/node#62935)
* \[[`999a83c937`](nodejs/node@999a83c937)] - **(SEMVER-MINOR)** **stream**: expose ReadableStreamTee (Matteo Collina) [#64195](nodejs/node#64195)
* \[[`4e0236dc3d`](nodejs/node@4e0236dc3d)] - **(SEMVER-MINOR)** **tls**: report negotiated TLS groups (Filip Skokan) [#64119](nodejs/node#64119)
### Commits
* \[[`87648c0a6c`](nodejs/node@87648c0a6c)] - **benchmark**: trim down the argon2 sets (Filip Skokan) [#64218](nodejs/node#64218)
* \[[`a483bfd3f0`](nodejs/node@a483bfd3f0)] - **buffer**: remove unreachable overflow check in atob (haramjeong) [#60161](nodejs/node#60161)
* \[[`6d14279688`](nodejs/node@6d14279688)] - **buffer**: add fast api for isUtf8 and isAscii (Gürgün Dayıoğlu) [#64169](nodejs/node#64169)
* \[[`55f48446c7`](nodejs/node@55f48446c7)] -… (truncated)
### v26.5.1
This is a security release.
### Notable Changes
* (CVE-2026-56848) http2: defer rst stream while in scope (Matteo Collina) – High
* (CVE-2026-58043) permission: avoid granting radix split nodes (RafaelGSS) – High
* (CVE-2026-56850) https: distinguish PFX object-array agent keys (RafaelGSS) – Medium
* (CVE-2026-58040) https: bind identity checks to session reuse (Matteo Collina) – Medium
* (CVE-2026-58041) sqlite: invalidate tag store iterators on statement reset (Matteo Collina) – Medium
* (CVE-2026-58042) dns: handle large resolveAny address replies (RafaelGSS) – Medium
* (CVE-2026-58045) zlib: throw on out-of-bounds write buffers (RafaelGSS) – Medium
* (CVE-2026-56847) permission: enforce fs write permission for trace events (RafaelGSS) – Low
* (CVE-2026-58039) permission: check final report output path (RafaelGSS) – Low
* (CVE-2026-58044) http: reject requests exceeding max header count (Matteo Collina) – Low
* deps: update llhttp to 9.4.3 (Paolo Insogna)
* deps: update undici to 8.9.0 (Node.js GitHub Bot)
### Commits
* \[[`af0bf96877`](nodejs/node@af0bf96877)] - **deps**: update llhttp to 9.4.3 (Paolo Insogna) [nodejs-private/node-private#935](https://github.com/nodejs-private/node-private/pull/935)
* \[[`0354678355`](nodejs/node@0354678355)] - **deps**: update undici to 8.9.0 (Node.js GitHub Bot) [#64712](nodejs/node#64712)
* \[[`dbeeaeec13`](nodejs/node@dbeeaeec13)] - **(CVE-2026-58042)** **dns**: handle large resolveAny address replies (RafaelGSS) [nodejs-private/node-private#929](https://github.com/nodejs-private/node-private/pull/929)
* \[[`064d339f56`](nodejs/node@064d339f56)] - **(CVE-2026-58044)** **http**: reject requests exceeding max header count (Matteo Collina) [nodejs-private/node-private#922](https://github.com/nodejs-private/node-private/pull/922)
* \[[`23b94c843a`](https://github.… (truncated)
_Omitted 12 older releases._
</details>
</details>
Modified files:
- `.mise.toml`
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