Babel

v8.0.5 (2026-09-10)

Thanks @drubetti, @jibin7jose, @joelle-a-dev, @journey-ad, @Kjubikstronk, @MatteoGabriele, and @zhangli091011 for your first PRs!

:eyeglasses: Spec Compliance

• babel-parser
  • #18218 fix(parser): do not form html entity for invalid codepoint (@JLHwung)

:bug: Bug Fix

• babel-parser
  • #18215 fix(parser): remove non-decimal prefix from bigint (@JLHwung)
  • #18063 Disallow new import prop access (@JLHwung)
• babel-plugin-transform-destructuring
  • #18214 fix: only collapse the empty-object check when it targets the declared binding (@Kjubikstronk)
• babel-plugin-transform-typescript
  • #18190 fix(ts): improve variable handling in namespace (@JLHwung)
  • #18207 [ts] Allow merging enum into a namespace (@nicolo-ribaudo)
• babel-node
  • #18217 Fix import path for babel-node.js (@drubetti)
• babel-plugin-bugfix-safari-rest-destructuring-rhs-array
  • #18213 fix(bugfix): bound check before array access (@JLHwung)
• babel-traverse
  • #18183 fix(remove): unwrap single sequence expression (@JLHwung)
  • #18153 Handle null in getAll{Prev,Next}Siblings (@JLHwung)
• babel-plugin-transform-block-scoping
  • #18194 fix: improve for loop closure environment check (@JLHwung)
  • #18193 fix: assign closure body after handling return (@JLHwung)
  • #18088 Fix initialization of nested for loop head declarations (@journey-ad)
• babel-generator
  • #18202 fix(generator): keep parens for ?. chain in tag (@JLHwung)
• babel-register
  • #18137 fix(babel-register): preserve app-managed graceful shutdown (@jibin7jose)
• Other
  • #18140 chore: fix @babel/eslint-plugin peer deps (@JLHwung)
• babel-cli, babel-helper-transform-fixture-test-runner, babel-register
  • #18131 fix(register): do not inherit parent execArgv (@JLHwung)
• babel-standalone
  • #18095 Add types for @babel/standalone (@liuxingbaoyu)

:memo: Documentation

• #18187 Add AI policy (@nicolo-ribaudo)

:house: Internal

• babel-cli, babel-core, babel-helper-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-fixtures, babel-preset-env
  • #18145 refactor: replace semver with verkit (@sxzz)
• babel-node
  • #18177 Update node flags list (@nicolo-ribaudo)
• babel-types
  • #18103 Simplify AST validators (@fisker)

:running_woman: Performance

• babel-parser
  • #18176 perf: Improve @babel/parser (@liuxingbaoyu)

Committers: 14

• Babel Bot (@babel-bot)
• Daniele Rubetti (@drubetti)
• Huáng Jùnliàng (@JLHwung)
• Jad (@journey-ad)
• Joelle Mahfoud (@joelle-a-dev)
• Kevin Deng (@sxzz)
• Matteo Gabriele (@MatteoGabriele)
• Miodrag Obradovic (@Kjubikstronk)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Rayan Salhab (@cyphercodes)
• @liuxingbaoyu
• @zhangli091011
• fisker Cheung (@fisker)
• jibin jose (@jibin7jose)

v7.29.8 (2026-07-31)

:eyeglasses: Spec Compliance

• babel-generator, babel-parser, babel-plugin-transform-spread, babel-traverse, babel-types
  • #17871 Disallow super call after new (@JLHwung)

:bug: Bug Fix

• babel-generator
  • #18046 fix(generator): improve new callee parens check (@JLHwung)
• babel-node, babel-plugin-transform-modules-systemjs
  • #18044 fix(systemjs): support __proto__ as an export name (@JLHwung)

Committers: 2

• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)

v8.0.4 (2026-07-09)

:eyeglasses: Spec Compliance

• babel-parser, babel-plugin-transform-typescript
  • #18120 fix(parser): disallow declare module M {} (@JLHwung)
• babel-generator, babel-parser, babel-plugin-transform-typescript
  • #18100 fix(parser): forbid let x! and let x! = (@JLHwung)

:bug: Bug Fix

• babel-traverse
  • #18122 fix: replaceWith in Visitor#exit should not stop traversal (@liuxingbaoyu)

:house: Internal

• babel-helper-validator-identifier
  • #18084 refactor: Shrink validator identifier size (@JLHwung)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

v8.0.3 (2026-06-27)

:bug: Bug Fix

• babel-core, babel-plugin-syntax-typescript
  • #18089 fix: Remove isTSX from babel-plugin-syntax-typescript types (@liuxingbaoyu)
• babel-standalone
  • #18086 fix: Use runtime: 'classic' in the browser for React (@liuxingbaoyu)

Committers: 2

• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

v8.0.2 (2026-06-18)

:bug: Bug Fix

• Other
  • #18083 Use the @babel/core version when asserting version in @babel/standalone (@nicolo-ribaudo)
• babel-helper-validator-identifier
  • #18075 fix(identifier): avoid double escaping slash (@JLHwung)

:house: Internal

• babel-plugin-proposal-decorators, babel-plugin-transform-regenerator, babel-preset-env
  • #18081 Update @babel/preset-modules and polyfill packages (@nicolo-ribaudo)

Committers: 2

• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)

v8.0.1 (2026-06-17)

This release includes a breaking change that was in the Babel 8 migration guide's Getting ready section and in the release post, but the actual removal of the feature from the codebase was accidentally not complete.

:boom: Breaking Change

• babel-core, babel-plugin-transform-object-rest-spread, babel-plugin-transform-runtime, babel-preset-env, babel-standalone
  • #18079 Actually remove preset-env's useBuiltIns (@nicolo-ribaudo)

Committers: 2

• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)

v8.0.0 (2026-06-16)

NOTE: The changelog below is relative to v8.0.0-rc.6. You can find a summary of all the breaking changes shipped in the Babel 8 release line in the migration guide for users and migration guide for plugin developers.

Read the release blog post at http://babeljs.io/blog/2026/06/16/8.0.0!

:eyeglasses: Spec Compliance

• babel-core
  • #18039 perf: Only extract source map comments at the end of the file (@liuxingbaoyu)

:boom: Breaking Change

• babel-cli, babel-node, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-modules-commonjs, babel-plugin-transform-object-rest-spread, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-regenerator, babel-preset-env, babel-register
  • #18069 Fallback to assuming ESM support with modules: auto (@nicolo-ribaudo)
• babel-plugin-transform-runtime, babel-runtime-corejs3, babel-runtime
  • #18036 Remove corejs exports for @babe/runtime-corejs3 (@liuxingbaoyu)
• babel-parser
  • #18034 Remove locations: "packed" (@liuxingbaoyu)

:bug: Bug Fix

• babel-generator
  • #18046 fix(generator): improve new callee parens check (@JLHwung)
• babel-plugin-transform-modules-systemjs
  • #18032 fix(systemjs): support proto as an export name (@JLHwung)

:memo: Documentation

• #18070 Add EOL date for Babel 7 (end of June 2027) to SECURITY.md (@nicolo-ribaudo)

:house: Internal

• #18018 ci: enforce yarn integrity (@JLHwung)

:running_woman: Performance

• babel-core
  • #18039 perf: Only extract source map comments at the end of the file (@liuxingbaoyu)

Committers: 6

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• James Garbutt (@43081j)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sandy Chen (@sandy2008)
• @liuxingbaoyu

v7.29.6 (2026-05-25)

:bug: Bug Fix

• babel-generator
  • #18014 Catchup source map position in preserveFormat (@nicolo-ribaudo)
• babel-core
  • #18001 [7.x packport]Improve input source map handling (@JLHwung)
• babel-core, babel-generator
  • #17998 Preserve original identifier names from input sourcemaps (#17992) (@Andarist)

Committers: 3

• Huáng Jùnliàng (@JLHwung)
• Mateusz Burzyński (@Andarist)
• Nicolò Ribaudo (@nicolo-ribaudo)

v8.0.0-rc.6 (2026-05-25)

Re-release all packages with npm provenance attestations

:bug: Bug Fix

• babel-generator
  • #18011 Catchup source map position in preserveFormat (@nicolo-ribaudo)
• babel-core
  • #17999 fix: improve inputSourceMap URL handling (@JLHwung)
• babel-core, babel-generator
  • #17992 Preserve original identifier names from input sourcemaps (@Andarist)

:house: Internal

• babel-core
  • #17970 Always use native Node.js TS support for config files (@nicolo-ribaudo)
• babel-compat-data, babel-register
  • #17993 chore: use bundled dts for register and eslint-* (@JLHwung)
• babel-helper-transform-fixture-test-runner, babel-node
  • #17989 Test Node.js 26 on CI (@nicolo-ribaudo)
• babel-build-external-helpers, babel-cli, babel-generator, babel-helper-fixtures, babel-helper-plugin-test-runner, babel-helper-transform-fixture-test-runner, babel-node, babel-parser, babel-plugin-transform-modules-systemjs, babel-types
  • #18002 Add file URL support for test runners (@JLHwung)

:microscope: Output optimization

• babel-cli, babel-core, babel-generator, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-explicit-resource-management, babel-plugin-transform-modules-commonjs, babel-plugin-transform-react-jsx, babel-traverse
  • #18005 Do not emit source map names for identical names (@nicolo-ribaudo)

Committers: 5

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Mateusz Burzyński (@Andarist)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

v8.0.0-rc.5 (2026-05-12)

:eyeglasses: Spec Compliance

• babel-parser
  • #17949 Disallow decorators on abstract/declare fields (@nicolo-ribaudo)

:boom: Breaking Change

• babel-code-frame, babel-core, babel-parser, babel-traverse
  • #17849 fix(code-frame): use 0-based columns to match Babel AST locations (#1… (@nehemiyawicks)
• All packages
  • #17969 Require Node.js ^22.18.0 || >=24.11.0 (@nicolo-ribaudo)
• babel-plugin-transform-object-set-prototype-of-to-assign, babel-standalone
  • #17958 Remove transform-object-set-prototype-of-to-assign (@liuxingbaoyu)
• babel-standalone
  • #17963 Remove noop plugins from @babel/standalone (@liuxingbaoyu)

:loudspeaker: Deprecation

• babel-plugin-transform-arrow-functions, babel-plugin-transform-classes, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-for-of, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-spread, babel-plugin-transform-template-literals
  • #17972 Deprecate spec and loose plugin options (@liuxingbaoyu)

:bug: Bug Fix

• babel-helper-globals
  • #17981 fix(helper-globals): Update browser-upper.json (@JLHwung)
• babel-plugin-transform-modules-systemjs
  • #17973 fix(systemjs): improve module string name support (@JLHwung)

:memo: Documentation

• #17977 Add threat model to SECURITY.md (@nicolo-ribaudo)

:house: Internal

• babel-core, babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-transform-async-to-generator, babel-plugin-transform-class-static-block, babel-plugin-transform-flow-strip-types, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-systemjs, babel-plugin-transform-typescript, babel-preset-env, babel-preset-flow, babel-preset-react, babel-preset-typescript
  • #17957 Add testing for plugin options (@liuxingbaoyu)
• Other
  • #17950 refactor(ts): migrate babel-eslint-plugin-* to TS (@JLHwung)

Committers: 6

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nehemiya Wickramasinghe (@nehemiyawicks)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @orbisai0security

v7.29.5 (2026-05-05)

:house: Internal

• babel-preset-env
  • Update @babel/* dependencies