2023-10-24, Version 21.1.0 (Current), @targos
Notable Changes
Automatically detect and run ESM syntax
The new flag --experimental-detect-module
can be used to automatically run
ES modules when their syntax can be detected. For “ambiguous” files, which are
.js
or extensionless files with no package.json
with a type
field, Node.js
will parse the file to detect ES module syntax; if found, it will run the file
as an ES module, otherwise it will run the file as a CommonJS module.
The same applies to string input via --eval
or STDIN
.
We hope to make detection enabled by default in a future version of Node.js.
Detection increases startup time, so we encourage everyone — especially package
authors — to add a type
field to package.json
, even for the default
"type": "commonjs"
. The presence of a type
field, or explicit extensions
such as .mjs
or .cjs
, will opt out of detection.
Contributed by Geoffrey Booth in #50096.
Other Notable Changes
- [
3729e33358
] - doc: add H4ad to collaborators (Vinícius Lourenço) #50217 - [
18862e4d5d
] - (SEMVER-MINOR) fs: addflush
option toappendFile()
functions (Colin Ihrig) #50095 - [
5a52c518ef
] - (SEMVER-MINOR) lib: addnavigator.userAgent
(Yagiz Nizipli) #50200 - [
789372a072
] - (SEMVER-MINOR) stream: allow pass stream class tostream.compose
(Alex Yang) #50187 - [
f3a9ea0bc4
] - stream: improve performance of readable stream reads (Raz Luvaton) #50173 - [
dda33c2bf1
] - vm: reject in importModuleDynamically without --experimental-vm-modules (Joyee Cheung) #50137 - [
3999362c59
] - vm: use internal versions of compileFunction and Script (Joyee Cheung) #50137 - [
a54179f0e0
] - vm: unify host-defined option generation in vm.compileFunction (Joyee Cheung) #50137
Commits
- [
9cd68b9083
] - buffer: remove unnecessary assignment in fromString (Tobias Nießen) #50199 - [
a362c276ec
] - crypto: ensure valid point on elliptic curve in SubtleCrypto.importKey (Filip Skokan) #50234 - [
f4da308f8d
] - deps: V8: cherry-pick f7d000a7ae7b (Luke Albao) #50302 - [
269e268c38
] - deps: update ada to 2.7.2 (Node.js GitHub Bot) #50338 - [
03a31ce41e
] - deps: update corepack to 0.22.0 (Node.js GitHub Bot) #50325 - [
000531781b
] - deps: update undici to 5.26.4 (Node.js GitHub Bot) #50274 - [
f050668c14
] - deps: update c-ares to 1.20.1 (Node.js GitHub Bot) #50082 - [
ba258b682b
] - deps: update c-ares to 1.20.0 (Node.js GitHub Bot) #50082 - [
571f7ef1fa
] - deps: patch V8 to 11.8.172.15 (Michaël Zasso) #50114 - [
943047e800
] - deps: V8: cherry-pick 25902244ad1a (Joyee Cheung) #50156 - [
db2a1cf1cb
] - doc: fixnavigator.hardwareConcurrency
example (Tobias Nießen) #50278 - [
6e537aeb44
] - doc: explain how to disable navigator (Geoffrey Booth) #50310 - [
c40de82d62
] - doc: add loong64 info into platform list (Shi Pujin) #50086 - [
1c21a1880b
] - doc: update release process LTS step (Richard Lau) #50299 - [
2473aa3672
] - doc: fix release process table of contents (Richard Lau) #50216 - [
ce9d84eae3
] - doc: update apistream.compose
(Alex Yang) #50206 - [
dacee4d9b5
] - doc: add ReflectConstruct to known perf issues (Vinicius Lourenço) #50111 - [
82363be2ac
] - doc: fix typo in dgram docs (Peter Johnson) #50211 - [
8c1a46c751
] - doc: fix H4ad collaborator sort (Vinicius Lourenço) #50218 - [
3729e33358
] - doc: add H4ad to collaborators (Vinícius Lourenço) #50217 - [
bac872cbd0
] - doc: update release-stewards with last sec-release (Rafael Gonzaga) #50179 - [
06b7724f14
] - doc: add command to keep major branch sync (Rafael Gonzaga) #50102 - [
47633ab086
] - doc: add loong64 to list of architectures (Shi Pujin) #50172 - [
1f40ca1b91
] - doc: update security release process (Michael Dawson) #50166 - [
998feda118
] - esm: do not give wrong hints when detecting file format (Antoine du Hamel) #50314 - [
e375063e01
] - (SEMVER-MINOR) esm: detect ESM syntax in ambiguous JavaScript (Geoffrey Booth) #50096 - [
c76eb27971
] - esm: improve check for ESM syntax (Geoffrey Booth) #50127 - [
7740bf820c
] - esm: rename error code related to import attributes (Antoine du Hamel) #50181 - [
0cc176ef25
] - fs: improve error performance forreadSync
(Jungku Lee) #50033 - [
5942edb774
] - fs: improve error performance forfsyncSync
(Jungku Lee) #49880 - [
6ec5abadc0
] - fs: improve error performance formkdirSync
(CanadaHonk) #49847 - [
c5ff000cb1
] - fs: improve error performance ofrealpathSync
(Yagiz Nizipli) #49962 - [
6eeaa02f5c
] - fs: improve error performance oflchownSync
(Yagiz Nizipli) #49962 - [
dc9ac8d41c
] - fs: improve error performance ofsymlinkSync
(Yagiz Nizipli) #49962 - [
bc6f279261
] - fs: improve error performance ofreadlinkSync
(Yagiz Nizipli) #49962 - [
275987841e
] - fs: improve error performance ofmkdtempSync
(Yagiz Nizipli) #49962 - [
81f15274e2
] - fs: improve error performance oflinkSync
(Yagiz Nizipli) #49962 - [
f766c04856
] - fs: improve error performance ofchownSync
(Yagiz Nizipli) #49962 - [
610036c67d
] - fs: improve error performance ofrenameSync
(Yagiz Nizipli) #49962 - [
18862e4d5d
] - (SEMVER-MINOR) fs: add flush option to appendFile() functions (Colin Ihrig) #50095 - [
3f8cbb15cb
] - http2: allow streams to complete gracefully after goaway (Michael Lumish) #50202 - [
1464eba1a0
] - lib: improve performance of validateStringArray and validateBooleanArray (Aras Abbasi) #49756 - [
5a52c518ef
] - (SEMVER-MINOR) lib: addnavigator.userAgent
(Yagiz Nizipli) #50200 - [
b6021ab8f6
] - lib: reduce overhead of blob clone (Vinicius Lourenço) #50110 - [
be19d9baa1
] - meta: move Trott to TSC regular member (Rich Trott) #50297 - [
91e373f8e9
] - node-api: return napi_exception_pending on proxy handlers (Chengzhong Wu) #48607 - [
531a3ae4b5
] - stream: simplify prefinish (Robert Nagy) #50204 - [
514ac86579
] - stream: reduce scope of readable bitmap details (Robert Nagy) #49963 - [
789372a072
] - (SEMVER-MINOR) stream: allow pass stream class tostream.compose
(Alex Yang) #50187 - [
f3a9ea0bc4
] - stream: call helper function from push and unshift (Raz Luvaton) #50173 - [
a9ca7b32e7
] - test: improve watch mode test (Moshe Atlow) #50319 - [
63b7059efd
] - test: settest-watch-mode-inspect
as flaky (Yagiz Nizipli) #50259 - [
7f87084b05
] - Revert "test: settest-esm-loader-resolve-type
as flaky" (Antoine du Hamel) #50315 - [
4d390e2de4
] - test: replace forEach with for..of in test-http-perf_hooks.js (Niya Shiyas) #49818 - [
67c599ec39
] - test: replace forEach with for..of in test-net-isipv4.js (Niya Shiyas) #49822 - [
19d3ce2494
] - test: deflaketest-esm-loader-resolve-type
(Antoine du Hamel) #50273 - [
2d8d6c5701
] - test: replace forEach with for..of in test-http2-server (Niya Shiyas) #49819 - [
af31d51e5a
] - test: replace forEach with for..of in test-http2-client-destroy.js (Niya Shiyas) #49820 - [
465ad2a5ce
] - test: updateurl
web platform tests (Yagiz Nizipli) #50264 - [
3b80a6894c
] - test: settest-emit-after-on-destroyed
as flaky (Yagiz Nizipli) #50246 - [
57adbdd156
] - test: set inspector async stack test as flaky (Yagiz Nizipli) #50244 - [
6507f66404
] - test: set test-worker-nearheaplimit-deadlock flaky (StefanStojanovic) #50277 - [
21a6ba548d
] - test: settest-cli-node-options
as flaky (Yagiz Nizipli) #50296 - [
c55f8f30cb
] - test: reduce the number of requests and parsers (Luigi Pinca) #50240 - [
5129bedfa2
] - test: set crypto-timing test as flaky (Yagiz Nizipli) #50232 - [
9bc5ab5e07
] - test: settest-structuredclone-*
as flaky (Yagiz Nizipli) #50261 - [
317e447ddc
] - test: deflaketest-loaders-workers-spawned
(Antoine du Hamel) #50251 - [
0c710daae2
] - test: improve code coverage of diagnostics_channel (Jithil P Ponnan) #50053 - [
7c6e4d7ec3
] - test: settest-esm-loader-resolve-type
as flaky (Yagiz Nizipli) #50226 - [
c8744909b0
] - test: set inspector async hook test as flaky (Yagiz Nizipli) #50252 - [
3e38001739
] - test: skip test-benchmark-os.js on IBM i (Abdirahim Musse) #50208 - [
dd66fdfb7b
] - test: set parallel http server test as flaky (Yagiz Nizipli) #50227 - [
a38d1311bf
] - test: set test-worker-nearheaplimit-deadlock flaky (Stefan Stojanovic) #50238 - [
8efb75fd80
] - test: settest-runner-watch-mode
as flaky (Yagiz Nizipli) #50221 - [
143ddded74
] - test: set sea snapshot tests as flaky (Yagiz Nizipli) #50223 - [
ae905a8f35
] - test: fix defect path traversal tests (Tobias Nießen) #50124 - [
ce27ee701b
] - tls: reduce TLS 'close' event listener warnings (Tim Perry) #50136 - [
ab4bae8e1f
] - tools: drop support for osx notarization with gon (Ulises Gascón) #50291 - [
5df3d5abcc
] - tools: update comment inupdate-uncidi.sh
andacorn_version.h
(Jungku Lee) #50175 - [
bf7b94f0b3
] - tools: refactor checkimports.py (Mohammed Keyvanzadeh) #50011 - [
5dc454a837
] - util: remove internal mime fns from benchmarks (Aras Abbasi) #50201 - [
8f7eb15603
] - vm: use import attributes instead of import assertions (Antoine du Hamel) #50141 - [
dda33c2bf1
] - vm: reject in importModuleDynamically without --experimental-vm-modules (Joyee Cheung) #50137 - [
3999362c59
] - vm: use internal versions of compileFunction and Script (Joyee Cheung) #50137 - [
a54179f0e0
] - vm: unify host-defined option generation in vm.compileFunction (Joyee Cheung) #50137 - [
87be790fa9
] - worker: handle detachedMessagePort
from a different context (Juan José) #49150