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

Re-release all packages with npm provenance attestations

🐛 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)

🏠 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)

🔬 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

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

v7.29.6 (2026-05-25)

🐛 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.5 (2026-05-12)

👓 Spec Compliance

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

💥 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)

📢 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 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)

📝 Documentation

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

🏠 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)

🏠 Internal

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

v7.29.4 (2026-05-05)

🐛 Bug Fix

• babel-plugin-transform-modules-systemjs
  • #17974 [7.x backport]fix(systemjs): improve module string name support (@JLHwung)

Committers: 1

• Huáng Jùnliàng (@JLHwung)

v7.29.3 (2026-04-30)

👓 Spec Compliance

• babel-parser
  • #17923 Support flow extends bound (@JLHwung)

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #17931 fix(decorators): replace super within all removed static elements (@JLHwung)
• babel-register
  • #17915 Fix thread synchronization issues in @babel/register (@liuxingbaoyu)
• babel-compat-data, babel-plugin-bugfix-safari-rest-destructuring-rhs-array, babel-preset-env
  • #17788 Add bugfix plugin for Safari array rest destructuring bug (@JLHwung)

💅 Polish

• babel-parser
  • #17782 Improve trailing comma comment handling (@JLHwung)

📝 Documentation

• #17847 Replace npmjs.com links with npmx.dev (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-helper-import-to-platform-api, babel-plugin-proposal-import-wasm-source, babel-plugin-transform-json-modules
  • #17818 Load async Wasm and JSON imports in parallel (@nicolo-ribaudo)

Committers: 4

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

v8.0.0-rc.4 (2026-04-29)

👓 Spec Compliance

• babel-parser
  • #17954 fix(parser): ts parser small fixes (@JLHwung)
  • #17923 Support flow extends bound (@JLHwung)
  • #17888 TS parser small fixes (@JLHwung)
  • #17865 Fix(parser): flow parser small fixes (@JLHwung)
• babel-generator, babel-parser, babel-plugin-transform-spread, babel-types
  • #17871 Disallow super call after new (@JLHwung)

💥 Breaking Change

• babel-cli, babel-helper-transform-fixture-test-runner, babel-helpers, babel-node, babel-register
  • #17938 Bundle more packages (@JLHwung)
• babel-traverse
  • #17937 Remove Scope#buildUndefinedNode (@nicolo-ribaudo)
• babel-helper-wrap-function, babel-plugin-transform-block-scoping, babel-plugin-transform-regenerator, babel-traverse
  • #17907 Remove NodePath#toComputedKey (@liuxingbaoyu)
• babel-plugin-external-helpers, babel-template, babel-traverse
  • #17830 Replace remaining whitelist/blacklist with inclusive alternatives (@stuckvgn)
• babel-plugin-transform-property-mutators, babel-standalone
  • #17882 Remove @babel/plugin-transform-property-mutators (@liuxingbaoyu)

🐛 Bug Fix

• babel-register
  • #17928 fix(register): skip hook for ignored files (@JLHwung)
  • #17915 Fix thread synchronization issues in @babel/register (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #17947 Fix decorators interaction with abstract/declare fields (@nicolo-ribaudo)
  • #17931 fix(decorators): replace super within all removed static elements (@JLHwung)
• Other
  • #17940 fix(eslint-plugin): Cleanup references to removed rules (@JLHwung)
• babel-core
  • #17933 Update Babel 8 config item brand (@JLHwung)
• babel-types
  • #17885 Make ArrowFunctionExpression.expression optional (@liuxingbaoyu)

💅 Polish

• babel-register
  • #17941 Uninstall sms in register revert (@JLHwung)
• babel-parser
  • #17902 polish(parser): improve ImportExpression error recovery (@JLHwung)

📝 Documentation

• #17952 docs: fix exponentiation fixture links (@cyphercodes)

🏠 Internal

• Other
  • #17944 refactor(eslint): remove compat layers for ESLint < 9 (@JLHwung)
• babel-core, babel-generator
  • #17880 chore: Remove unused merging source map code (@liuxingbaoyu)

Committers: 6

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Rayan Salhab (@cyphercodes)
• Sam Tucker-Davis (@stuckvgn)
• @liuxingbaoyu

v8.0.0-rc.3 (2026-03-16)

Thanks @rootvector2 and @veeceey for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17839 Fix(parser): async x => {} must be in leading pos (@JLHwung)
  • #17803 Disallow non-leading solo await within F# pipeline (@JLHwung)

💥 Breaking Change

• babel-parser, babel-plugin-proposal-do-expressions, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-instanceof, babel-traverse, babel-types
  • #17867 [Babel 8] Remove Import from the Expression alias (@JLHwung)
• babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-preset-react
  • #17845 Gate jsxDEV source/self with developmentSourceSelf option (@rootvector2)
• babel-generator, babel-parser, babel-types
  • #17835 fix: Remove decorators from TSDeclareMethod (@liuxingbaoyu)
• babel-helper-import-to-platform-api, babel-plugin-proposal-import-wasm-source, babel-plugin-transform-json-modules
  • #17816 Pass file instead of path to importToPlatformApi builders (@nicolo-ribaudo)

🚀 New Feature

• babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-preset-react
  • #17862 Add sourceSelf option to @babel/plugin-transform-react-jsx-development (@nicolo-ribaudo)
• babel-parser
  • #16935 feat: Add locations option to parser (@liuxingbaoyu)

🐛 Bug Fix

• babel-compat-data, babel-plugin-bugfix-safari-rest-destructuring-rhs-array, babel-preset-env
  • #17788 Add bugfix plugin for Safari array rest destructuring bug (@JLHwung)
• babel-generator, babel-parser, babel-traverse, babel-types
  • #17852 Fix(types): Align AST definitions to parser implementations (@JLHwung)
• babel-build-external-helpers, babel-cli, babel-node, babel-parser
  • #17859 fix: Ensure packages are executable (@liuxingbaoyu)
• babel-build-external-helpers, babel-cli, babel-node, babel-register
  • #17822 Fix eslint package types (@liuxingbaoyu)
• babel-plugin-transform-parameters, babel-traverse
  • #17829 Fix types for path.get("body.${index}") (@liuxingbaoyu)
• babel-parser
  • #17806 Improve F# pipeline direct body check (@JLHwung)
  • #17799 Fix TypeScript parser failing on async calls in ternary consequent (@veeceey)
• babel-build-external-helpers
  • #17827 fix(build-external-helpers): incorrect bin path (@JLHwung)
• babel-core, babel-generator, babel-helper-transform-fixture-test-runner, babel-plugin-transform-runtime, babel-types
  • #17811 Support ESLint v10 for babel-eslint-plugin (@JLHwung)

💅 Polish

• babel-parser
  • #17782 Improve trailing comma comment handling (@JLHwung)
• babel-plugin-transform-regenerator
  • #17362 Do not split awaitAsyncGenerator in await yield (@nicolo-ribaudo)

📝 Documentation

• #17847 Replace npmjs.com links with npmx.dev (@nicolo-ribaudo)

🏠 Internal

• babel-parser
  • #17853 refactor(parser): use AST definitions from babel/types (@JLHwung)
  • #17838 refactor(parser): simplify arrow start tracking (@JLHwung)
  • #17808 Build: Ensure make build will build Babel parser typings (@JLHwung)
• babel-runtime-corejs3, babel-runtime
  • #17855 Remove engines field from @babel/runtime (@nicolo-ribaudo)
• Other
  • #17825 chore: Set allowUnreachableCode: false (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-helper-import-to-platform-api, babel-plugin-proposal-import-wasm-source, babel-plugin-transform-json-modules
  • #17818 Load async Wasm and JSON imports in parallel (@nicolo-ribaudo)
• babel-parser
  • #17834 fix(parser): performance issue due to debug code (@JLHwung)

Committers: 6

• Babel Bot (@babel-bot)
• Dexter.k (@rootvector2)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Varun Chawla (@veeceey)
• @liuxingbaoyu

v7.29.2 (2026-03-16)

👓 Spec Compliance

• babel-parser
  • #17840 [7.x backport] async x => {} must be in leading pos (@JLHwung)

🐛 Bug Fix

• babel-helpers, babel-plugin-transform-async-generator-functions, babel-preset-env, babel-runtime-corejs3
  • #17805 [7.x backport] fix: Properly handle await in finally (@liuxingbaoyu)
• babel-preset-env
  • #17789 [7.x backport] preset-env include/exclude should accept bugfix plugins (@JLHwung)

🏠 Internal

• #17813 chore: update eslint peer deps (@JLHwung)

Committers: 2

• Huáng Jùnliàng (@JLHwung)
• @liuxingbaoyu