2026-05-05, Version 26.0.0 (Current)

assert:
  * (SEMVER-MAJOR) allow printf-style messages as assertion error (Ruben Bridgewater) #58849
build:
  * (SEMVER-MAJOR) bump GCC requirement to 13.2 (Michaël Zasso) #62555
  * (SEMVER-MAJOR) enable Temporal by default (Richard Lau) #61806
  * (SEMVER-MAJOR) enable V8_VERIFY_WRITE_BARRIERS in debug build (Joyee Cheung) #61898
  * (SEMVER-MAJOR) reset embedder string to "-node.0" (Michaël Zasso) #61898
  * (SEMVER-MAJOR) target Power 9 for AIX/IBM i (Richard Lau) #62296
  * (SEMVER-MAJOR) drop support for Python 3.9 (Mike McCready) #61177
  * (SEMVER-MAJOR) enable maglev for Linux on s390x (Richard Lau) #60863
  * (SEMVER-MAJOR) reset embedder string to "-node.0" (Michaël Zasso) #60488
  * (SEMVER-MAJOR) reset embedder string to "-node.0" (Michaël Zasso) #60111
build,test:
  * (CVE-2026-21717) (SEMVER-MAJOR) test array index hash collision (Joyee Cheung) #61898
build,win:
  * (SEMVER-MAJOR) fix Temporal build (StefanStojanovic) #61806
crypto:
  * (SEMVER-MAJOR) unify asymmetric key import through KeyObjectHandle::Init (Filip Skokan) #62499
  * (SEMVER-MAJOR) runtime-deprecate DEP0203 and DEP0204 (Filip Skokan) #62453
  * (SEMVER-MAJOR) decorate async crypto job errors with OpenSSL error details (Filip Skokan) #62348
  * (SEMVER-MAJOR) default ML-KEM and ML-DSA pkcs8 export to seed-only format (Filip Skokan) #62178
  * (SEMVER-MAJOR) move DEP0182 to End-of-Life (Tobias Nießen) #61084
  * (SEMVER-MAJOR) fix DOMException name for non-extractable key error (Filip Skokan) #60830
deps:
  * (SEMVER-MAJOR) V8: cherry-pick 0f024d4e66e0 (ishabi) #62408
  * (SEMVER-MAJOR) fix V8 race condition for AIX (Abdirahim Musse) #61898
  * (SEMVER-MAJOR) V8: cherry-pick cd2c216e7658 (LuYahan) #61898
  * (SEMVER-MAJOR) V8: backport 088b7112e7ab (Igor Sheludko) #61898
  * (SEMVER-MAJOR) V8: cherry-pick 00f6e834029f (Joyee Cheung) #61898
  * (SEMVER-MAJOR) V8: backport bef0d9c1bc90 (Joyee Cheung) #61898
  * (SEMVER-MAJOR) V8: cherry-pick cf1bce40a5ef (Richard Lau) #61898
  * (SEMVER-MAJOR) V8: cherry-pick daf4656ba85e (Milad Fa) #61898
  * (SEMVER-MAJOR) V8: cherry-pick d83f479604c8 (Joyee Cheung) #61898
  * (SEMVER-MAJOR) V8: cherry-pick edeb0a4fa181 (Joyee Cheung) #61898
  * (SEMVER-MAJOR) V8: cherry-pick aa0b288f87cc (Richard Lau) #61898
  * (SEMVER-MAJOR) patch V8 to fix Windows build (StefanStojanovic) #61898
  * (SEMVER-MAJOR) V8: cherry-pick highway@989a498fdf3 (Richard Lau) #61898
  * (SEMVER-MAJOR) support madvise(3C) across ALL illumos revisions (Dan McDonald) #61898
  * (SEMVER-MAJOR) patch V8 for illumos (Dan McDonald) #61898
  * (SEMVER-MAJOR) remove problematic comment from v8-internal (Michaël Zasso) #61898
  * (SEMVER-MAJOR) define V8_PRESERVE_MOST as no-op on Windows (Stefan Stojanovic) #61898
  * (SEMVER-MAJOR) patch V8 to avoid duplicated zlib symbol (Michaël Zasso) #61898
  * (SEMVER-MAJOR) update V8 to 14.6.202.33 (Michaël Zasso) #61898
  * (SEMVER-MAJOR) update undici to 8.0.2 (Node.js GitHub Bot) #62384
  * (SEMVER-MAJOR) V8: backport 151d0a44a1b2 (Abdirahim Musse) #60488
  * (SEMVER-MAJOR) V8: cherry-pick 47800791b35c (Jakob Kummerow) #60488
  * (SEMVER-MAJOR) patch V8 for illumos (Dan McDonald) #59805
  * (SEMVER-MAJOR) use std::map in MSVC STL for EphemeronRememberedSet (Joyee Cheung) #58070
  * (SEMVER-MAJOR) remove problematic comment from v8-internal (Michaël Zasso) #58070
  * (SEMVER-MAJOR) patch V8 to avoid duplicated zlib symbol (Michaël Zasso) #54077
  * (SEMVER-MAJOR) update V8 to 14.3.127.12 (Michaël Zasso) #60488
  * (SEMVER-MAJOR) V8: cherry-pick ff34ae20c8e3 (Chengzhong Wu) #60111
  * (SEMVER-MAJOR) V8: backport fed47445bbdd (Abdirahim Musse) #60111
  * (SEMVER-MAJOR) patch V8 for illumos (Dan McDonald) #59805
  * (SEMVER-MAJOR) use std::map in MSVC STL for EphemeronRememberedSet (Joyee Cheung) #58070
  * (SEMVER-MAJOR) remove problematic comment from v8-internal (Michaël Zasso) #58070
  * (SEMVER-MAJOR) patch V8 to avoid duplicated zlib symbol (Michaël Zasso) #54077
  * (SEMVER-MAJOR) update V8 to 14.2.231.9 (Michaël Zasso) #60111
diagnostics_channel:
  * (SEMVER-MAJOR) ensure tracePromise consistency with non-Promises (René) #61766
doc:
  * (SEMVER-MAJOR) remove extensionless CJS exception for type:module packages (Matteo Collina) #62176
  * (SEMVER-MAJOR) update supported Windows SDK version to 11 (Mike McCready) #61973
  * (SEMVER-MAJOR) drop p8 and z13 support (Milad Fa) #61005
http:
  * (SEMVER-MAJOR) move writeHeader to end-of-life (Sebastian Beltran) #60635
  * (SEMVER-MAJOR) fix handling of HTTP upgrades with bodies (Tim Perry) #60016
lib:
  * (SEMVER-MAJOR) return undefined for localStorage without file (Matteo Collina) #61333
lib,src:
  * (SEMVER-MAJOR) implement QuotaExceededError as DOMException-derived interface (Filip Skokan) #62293
module:
  * (SEMVER-MAJOR) runtime-deprecate module.register() (Geoffrey Booth) #62401
  * (SEMVER-MAJOR) remove --experimental-transform-types (Marco Ippolito) #61803
src:
  * (SEMVER-MAJOR) replace uses of deprecated v8::External APIs (gahaas) #61898
  * (SEMVER-MAJOR) stop using `v8::PropertyCallbackInfo<T>::This()` (Igor Sheludko) #61898
  * (SEMVER-MAJOR) avoid deprecated Wasm API (Clemens Backes) #61898
  * (SEMVER-MAJOR) avoid deprecated `FixedArray::Get` (Clemens Backes) #61898
  * (SEMVER-MAJOR) update NODE_MODULE_VERSION to 147 (Michaël Zasso) #61898
  * (SEMVER-MAJOR) remove deprecated and unused isolate fields (Michaël Zasso) #60488
  * (SEMVER-MAJOR) update NODE_MODULE_VERSION to 144 (Michaël Zasso) #60488
  * (SEMVER-MAJOR) include `node_api_types.h` instead of `node_api.h` in `node.h` (Anna Henningsen) #60496
  * (SEMVER-MAJOR) update NODE_MODULE_VERSION to 142 (Michaël Zasso) #60111
stream:
  * (SEMVER-MAJOR) promote DEP0201 to runtime deprecation (René) #62173
  * (SEMVER-MAJOR) move _stream_* to end-of-life (Sebastian Beltran) #60657
  * (SEMVER-MAJOR) readable read one buffer at a time (Robert Nagy) #60441
  * (SEMVER-MAJOR) preserve AsyncLocalStorage on finished only when needed (avcribl) #59873
test:
  * (SEMVER-MAJOR) skip wasm allocation tests in workers (Michaël Zasso) #61898
  * (SEMVER-MAJOR) update wpt Wasm jsapi expectations (Michaël Zasso) #61898
  * (SEMVER-MAJOR) support presence of Temporal global (Michaël Zasso) #61898
  * (SEMVER-MAJOR) add type tags to uses of v8::External (gahaas) #61898
  * (SEMVER-MAJOR) fix test-linux-perf-logger for V8 14.3 (Michaël Zasso) #60488
tools:
  * (SEMVER-MAJOR) remove v8_initializers_slow workaround from v8.gyp (Michaël Zasso) #61898
  * (SEMVER-MAJOR) add Rust args to `tools/make-v8.sh` (Richard Lau) #61898
  * (SEMVER-MAJOR) update V8 gypfiles for 14.6 (Michaël Zasso) #61898
  * (SEMVER-MAJOR) update V8 gypfiles for 14.5 (Michaël Zasso) #61898
  * (SEMVER-MAJOR) update V8 gypfiles for 14.4 (Michaël Zasso) #61898
util:
  * (SEMVER-MAJOR) mark proxied objects as such when inspecting them (Ruben Bridgewater) #61029
  * (SEMVER-MAJOR) reduce TextEncoder.encodeInto function size (Yagiz Nizipli) #60339

PR-URL: #62526

Author: RafaelGSS

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 Select a Node.js version below to view the changelog history:
 
+* [Node.js 26](doc/changelogs/CHANGELOG_V26.md) **Current**
 * [Node.js 25](doc/changelogs/CHANGELOG_V25.md) **Current**
 * [Node.js 24](doc/changelogs/CHANGELOG_V24.md) **Long Term Support**
 * [Node.js 23](doc/changelogs/CHANGELOG_V23.md) End-of-Life
@@ -34,13 +35,17 @@ release.
 
 <table>
 <tr>
+  <th title="Current"><a href="doc/changelogs/CHANGELOG_V26.md">26</a> (Current)</th>
   <th title="Current"><a href="doc/changelogs/CHANGELOG_V25.md">25</a> (Current)</th>
   <th title="LTS Until 2028-04"><a href="doc/changelogs/CHANGELOG_V24.md">24</a> (LTS)</th>
   <th title="LTS Until 2027-04"><a href="doc/changelogs/CHANGELOG_V22.md">22</a> (LTS)</th>
   <th title="LTS Until 2026-04"><a href="doc/changelogs/CHANGELOG_V20.md">20</a> (LTS)</th>
 </tr>
 <tr>
   <td valign="top">
+<b><a href="doc/changelogs/CHANGELOG_V26.md#26.0.0">26.0.0</a></b><br/>
+  </td>
+  <td valign="top">
 <b><a href="doc/changelogs/CHANGELOG_V25.md#25.9.0">25.9.0</a></b><br/>
 <a href="doc/changelogs/CHANGELOG_V25.md#25.8.2">25.8.2</a><br/>
 <a href="doc/changelogs/CHANGELOG_V25.md#25.8.1">25.8.1</a><br/>

doc/api/assert.md

@@ -327,7 +327,7 @@ destructuring and call methods directly on the instance.
 <!-- YAML
 added: v0.5.9
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
 -->
@@ -342,7 +342,7 @@ An alias of [`assert.ok()`][].
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version: v25.0.0
@@ -861,7 +861,7 @@ added:
   - v13.6.0
   - v12.16.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version: v16.0.0
@@ -1104,7 +1104,7 @@ assert.doesNotThrow(
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version:
@@ -1292,7 +1292,7 @@ added:
   - v13.6.0
   - v12.16.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version: v16.0.0
@@ -1344,7 +1344,7 @@ instance of {Error} then it will be thrown instead of the
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version:
@@ -1471,7 +1471,7 @@ instead of the `AssertionError`.
 <!-- YAML
 added: v1.2.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version: v9.0.0
@@ -1534,7 +1534,7 @@ instead of the [`AssertionError`][].
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version:
@@ -1601,7 +1601,7 @@ parameter is an instance of {Error} then it will be thrown instead of the
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version: v10.0.0
@@ -1657,7 +1657,7 @@ instead of the `AssertionError`.
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version: v10.0.0
@@ -1904,7 +1904,7 @@ argument gets considered.
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/58849
     description: Message may now be a `printf`-like format string or function.
   - version: v10.0.0

doc/api/async_context.md

@@ -389,7 +389,9 @@ try {
 ### `asyncLocalStorage.withScope(store)`
 
 <!-- YAML
-added: v25.9.0
+added:
+ - v25.9.0
+ - v26.0.0
 -->
 
 > Stability: 1 - Experimental
@@ -527,7 +529,9 @@ probably responsible for the context loss.
 ## Class: `RunScope`
 
 <!-- YAML
-added: v25.9.0
+added:
+ - v25.9.0
+ - v26.0.0
 -->
 
 > Stability: 1 - Experimental
@@ -543,7 +547,9 @@ exits, whether through normal completion or by throwing an error.
 ### `scope.dispose()`
 
 <!-- YAML
-added: v25.9.0
+added:
+ - v25.9.0
+ - v26.0.0
 -->
 
 Explicitly ends the scope and restores the previous store value. This method

doc/api/cli.md

@@ -786,7 +786,7 @@ added:
 - v20.15.0
 changes:
   - version:
-    - REPLACEME
+    - v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62132
     description: Node.js now automatically disables the trap handler when there is not
                  enough virtual memory available at startup to allocate one cage.
@@ -1325,7 +1325,9 @@ Enable experimental support for storage inspection
 ### `--experimental-stream-iter`
 
 <!-- YAML
-added: v25.9.0
+added:
+ - v25.9.0
+ - v26.0.0
 -->
 
 > Stability: 1 - Experimental

doc/api/crypto.md

@@ -1193,7 +1193,7 @@ When passing a string as the `buffer`, please consider
 <!-- YAML
 added: v1.0.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/61084
     description: Using GCM tag lengths other than 128 bits without specifying
                  the `authTagLength` option when creating `decipher` is not
@@ -2258,7 +2258,7 @@ be listed in the `transferList` argument.
 <!-- YAML
 added: v15.0.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62453
     description: Passing a non-extractable CryptoKey as `key` is deprecated.
 -->
@@ -2399,11 +2399,11 @@ type, value, and parameters. This method is not
 <!-- YAML
 added: v11.6.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62706
     description: Added JWK format support for ML-KEM and SLH-DSA
                  key types.
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62178
     description: ML-KEM and ML-DSA private key `'pkcs8'` export now
                  uses seed-only format by default when a seed is
@@ -3536,7 +3536,7 @@ operations. The specific constants currently defined are described in
 <!-- YAML
 added: v0.1.94
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62453
     description: Passing a CryptoKey as `key` is deprecated.
   - version:
@@ -3613,7 +3613,7 @@ given IV will be.
 <!-- YAML
 added: v0.1.94
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62453
     description: Passing a CryptoKey as `key` is deprecated.
   - version:
@@ -3839,7 +3839,7 @@ input.on('readable', () => {
 <!-- YAML
 added: v0.1.94
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62453
     description: Passing a CryptoKey as `key` is deprecated.
   - version: v15.0.0
@@ -3932,11 +3932,11 @@ input.on('readable', () => {
 <!-- YAML
 added: v11.6.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62706
     description: Added JWK format support for ML-KEM and SLH-DSA
                  key types.
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62453
     description: Passing a CryptoKey as `key` is deprecated.
   - version: v24.15.0
@@ -3987,11 +3987,11 @@ of the passphrase is limited to 1024 bytes.
 <!-- YAML
 added: v11.6.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62706
     description: Added JWK format support for ML-KEM and SLH-DSA
                  key types.
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62453
     description: Passing a CryptoKey as `key` is deprecated.
   - version: v24.15.0
@@ -6104,7 +6104,7 @@ Throws an error if FIPS mode is not available.
 <!-- YAML
 added: v12.0.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62474
     description: Add support for Ed25519 context parameter.
   - version: v24.8.0
@@ -6233,7 +6233,7 @@ not introduce timing vulnerabilities.
 <!-- YAML
 added: v12.0.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62474
     description: Add support for Ed25519 context parameter.
   - version: v24.8.0

doc/api/deprecations.md

@@ -1630,7 +1630,7 @@ instead.
 
 <!-- YAML
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-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/60635
     description: End-of-Life.
   - version: v25.0.0
@@ -2841,7 +2841,7 @@ This property is a reference to the instance itself.
 
 <!-- YAML
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/60657
     description: End-of-Life.
   - version: v12.0.0
@@ -4033,7 +4033,7 @@ Please use the [`crypto.createHmac()`][] method to create Hmac instances.
 
 <!-- YAML
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/61084
     description: End-of-Life.
   - version: v23.0.0
@@ -4241,7 +4241,7 @@ an internal nodejs implementation rather than a public facing API, use `node:tls
 
 <!-- YAML
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-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/60657
     description: End-of-Life.
   - version:
@@ -4431,7 +4431,7 @@ import { opendir } from 'node:fs/promises';
 
 <!-- YAML
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-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62173
     description: Runtime deprecation.
   - version:
@@ -4489,7 +4489,7 @@ const server = http2.createSecureServer({
 
 <!-- YAML
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     pr-url: https://github.com/nodejs/node/pull/62453
     description: Runtime deprecation.
   - version:
@@ -4516,7 +4516,7 @@ will throw an error in a future version. This includes
 
 <!-- YAML
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-  - version: REPLACEME
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     description: Runtime deprecation.
   - version:
@@ -4535,7 +4535,7 @@ deprecated and will throw an error in a future version.
 
 <!-- YAML
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/62401
     description: Runtime deprecation.
   - version:

doc/api/diagnostics_channel.md

@@ -948,7 +948,7 @@ added:
  - v19.9.0
  - v18.19.0
 changes:
-  - version: REPLACEME
+  - version: v26.0.0
     pr-url: https://github.com/nodejs/node/pull/61766
     description: Custom thenables will no longer be wrapped in native Promises.
                  Non-thenables will be returned with a warning.
@@ -1861,6 +1861,7 @@ Emitted when [`process.execve()`][] is invoked.
 added:
  - v25.9.0
  - v24.15.0
+ - v26.0.0
 -->
 
 These channels are emitted for each [`locks.request()`][] call. See