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🚨 @babel/core: Arbitrary File Read via sourceMappingURL Comment

Impact

Using @babel/core to compile maliciously crafted code can allow ab attacker to read any source map from the system that is running Babel, if these conditions are all true:

• the attacker controls the input source code
• the attacker can read the output source code
• the attacker knows the path of the source map file that they want to read

Users that only compile trusted code are not impacted.

Patches

The vulnerability has been fixed in @babel/core@7.29.6 and @babel/core@8.0.0-rc.6.

Workarounds

Callers can mitigate the issue without upgrading by setting inputSourceMap: false in their Babel options.

Callers can also manually extract the #sourceMappingURL comment from the input source code, validate whether the source map that it links to is allowed to be read, and if it is pass an object to inputSourceMap (passing false when it's not).

Credits

Thanks Teodor-Cristian Radoi for reporting the vulnerability.

Too many releases to show here. View the full release notes.

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• v7.29.7
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• v7.29.7
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7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.3

v7.27.3 (2025-05-27)

🐛 Bug Fix

• babel-generator
  • #17324 Improve multiline comments handling in yield/await expression (@JLHwung)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17328 Correctly set .displayName on GeneratorFunction (@nicolo-ribaudo)
• babel-plugin-proposal-explicit-resource-management
  • #17319 fix: handle shadowed binding in for using of body (@JLHwung)
  • #17317 fix: support named evaluation for using declaration (@JLHwung)
• babel-plugin-proposal-decorators, babel-types
  • #17321 fix(converter): Remove abstract modifiers in class declaration to expression conversion (@magic-akari)
• babel-helper-module-transforms, babel-plugin-proposal-explicit-resource-management, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd
  • #17257 Preserve class id when transforming using declarations with exported class (@JLHwung)
• babel-parser
  • #17312 fix(parser): properly handle optional markers in generator class methods (@magic-akari)
  • #17307 fix(parser): Terminate modifier parsing at newline (@magic-akari)
• babel-generator, babel-parser
  • #17308 Improve import phase parsing (@JLHwung)

Committers: 7

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Vik R (@vikr01)
• @liuxingbaoyu
• @magic-akari
• fisker Cheung (@fisker)

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.22.5

v7.22.5 (2023-06-08)

🐛 Bug Fix

• babel-preset-env, babel-standalone
  • #15675 Fix using syntax-unicode-sets-regex in standalone (@nicolo-ribaudo)

💅 Polish

• babel-core
  • #15683 Suggest -transform- when resolving missing plugins (@nicolo-ribaudo)

Committers: 4

• Avery (@nullableVoidPtr)
• Babel Bot (@babel-bot)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

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See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.24.3

v7.24.3 (2024-03-20)

🐛 Bug Fix

• babel-helper-module-imports
  • #16370 fix: do not inject the same imported identifier multiple times (@ota-meshi)

Committers: 2

• Nicolò Ribaudo (@nicolo-ribaudo)
• Yosuke Ota (@ota-meshi)

7.24.1

v7.24.1 (2024-03-19)

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16350 Fix decorated class computed keys ordering (@JLHwung)
  • #16344 Fix decorated class static field private access (@JLHwung)
• babel-plugin-proposal-decorators, babel-plugin-proposal-json-modules, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env
  • #16329 Respect moduleName for @babel/runtime/regenerator imports (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties
  • #16331 Fix decorator memoiser binding kind (@JLHwung)
• babel-helper-create-class-features-plugin, babel-helper-replace-supers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties
  • #16325 Fix decorator evaluation private environment (@JLHwung)

📝 Documentation

• #16319 Update SECURITY.md (@nicolo-ribaudo)

🏠 Internal

• babel-code-frame, babel-highlight
  • #16359 Replace chalk with picocolors (@nicolo-ribaudo)
• babel-helper-fixtures, babel-helpers, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow
  • #16352 Run Babel transform tests on old node if possible (@JLHwung)
• babel-helper-module-imports, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-json-modules, babel-plugin-proposal-record-and-tuple, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx
  • #16349 Support merging imports in import injector (@nicolo-ribaudo)
• Other
  • #16332 Test Babel 7 plugins compatibility with Babel 8 core (@nicolo-ribaudo)

🔬 Output optimization

• babel-helper-replace-supers, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-runtime
  • #16345 Optimize the use of assertThisInitialized after super() (@liuxingbaoyu)
• babel-plugin-transform-class-properties, babel-plugin-transform-classes
  • #16343 Use simpler assertThisInitialized more often (@liuxingbaoyu)
• babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-object-rest-spread, babel-traverse
  • #16342 Consider well-known and registered symbols as literals (@nicolo-ribaudo)
• babel-core, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-proposal-function-bind, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-function-name, babel-plugin-transform-modules-systemjs, babel-plugin-transform-parameters, babel-plugin-transform-private-property-in-object, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-spread, babel-plugin-transform-typescript, babel-preset-env
  • #16326 Reduce the use of class names (@liuxingbaoyu)

Committers: 4

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

7.22.15

v7.22.15 (2023-09-04)

🐛 Bug Fix

• babel-core
  • #15923 Only perform config loading re-entrancy check for cjs (@nicolo-ribaudo)

🏠 Internal

• Every package
  • #15892 Add explicit .ts/.js extension to all imports in src (@nicolo-ribaudo)

Committers: 4

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

7.22.5

v7.22.5 (2023-06-08)

🐛 Bug Fix

• babel-preset-env, babel-standalone
  • #15675 Fix using syntax-unicode-sets-regex in standalone (@nicolo-ribaudo)

💅 Polish

• babel-core
  • #15683 Suggest -transform- when resolving missing plugins (@nicolo-ribaudo)

Committers: 4

• Avery (@nullableVoidPtr)
• Babel Bot (@babel-bot)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

7.21.4

v7.21.4 (2023-03-31)

🐛 Bug Fix

• babel-core, babel-helper-module-imports, babel-preset-typescript
  • #15478 Fix support for import/export in .cts files (@liuxingbaoyu)
• babel-generator
  • #15496 Fix compact printing of non-null assertion operators (@rtsao)

💅 Polish

• babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-transform-typescript, babel-traverse
  • #15427 Fix moving comments of removed nodes (@nicolo-ribaudo)

🏠 Internal

• Other
  • #15519 Update Prettier integration test (@fisker)
• babel-parser
  • #15510 refactor: introduce lookaheadInLineCharCode (@JLHwung)
• babel-code-frame, babel-highlight
  • #15499 Polish babel-code-frame highlight test (@JLHwung)

Committers: 6

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Ryan Tsao (@rtsao)
• @liuxingbaoyu
• fisker Cheung (@fisker)

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.22.5

v7.22.5 (2023-06-08)

🐛 Bug Fix

• babel-preset-env, babel-standalone
  • #15675 Fix using syntax-unicode-sets-regex in standalone (@nicolo-ribaudo)

💅 Polish

• babel-core
  • #15683 Suggest -transform- when resolving missing plugins (@nicolo-ribaudo)

Committers: 4

• Avery (@nullableVoidPtr)
• Babel Bot (@babel-bot)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.26.5

v7.26.5 (2025-01-10)

👓 Spec Compliance

• babel-parser
  • #17011 Allow the dynamic import.defer() form of import defer (@babel-bot)

🐛 Bug Fix

• babel-plugin-transform-block-scoped-functions
  • #17024 chore: Avoid calling isInStrictMode in Babel 7 (@liuxingbaoyu)
• babel-plugin-transform-typescript
  • #17026 fix: Correctly generate exported const enums in namespace (@liuxingbaoyu)
• babel-parser
  • #17045 [estree] Unify method type parameters handling (@JLHwung)
  • #17013 fix: Correctly set position for @(a.b)() (@liuxingbaoyu)
  • #16996 [estree] Adjust the start loc of class methods with type params (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-plugin-transform-flow-strip-types, babel-types
  • #17028 Support flow jsx opening element type arguments (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17031 fix: More accurate transform-typeof-symbol compat data (@liuxingbaoyu)
• babel-generator, babel-parser, babel-types
  • #17019 Fix incomplete visitor keys (@JLHwung)

🔬 Output optimization

• babel-plugin-transform-nullish-coalescing-operator
  • #16612 Improve nullish coalescing operator output (@liuxingbaoyu)

Committers: 5

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

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.24.8

v7.24.8 (2024-07-11)

Thanks @H0onnn, @jkup and @SreeXD for your first pull requests!

👓 Spec Compliance

• babel-parser
  • #16567 Do not use strict mode in TS declare (@liuxingbaoyu)

🐛 Bug Fix

• babel-generator
  • #16630 Correctly print parens around in in for heads (@nicolo-ribaudo)
  • #16626 Fix printing of comments in await using (@nicolo-ribaudo)
  • #16591 fix typescript code generation for yield expression inside type expre… (@SreeXD)
• babel-parser
  • #16613 Disallow destructuring assignment in using declarations (@H0onnn)
  • #16490 fix: do not add .value: undefined to regexp literals (@liuxingbaoyu)
• babel-types
  • #16615 Remove boolean props from ObjectTypeInternalSlot visitor keys (@nicolo-ribaudo)
• babel-plugin-transform-typescript
  • #16566 fix: Correctly handle export import x = (@liuxingbaoyu)

💅 Polish

• babel-generator
  • #16625 Avoid unnecessary parens around async in for await (@nicolo-ribaudo)
• babel-traverse
  • #16619 Avoid checking Scope.globals multiple times (@liuxingbaoyu)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Jon Kuperman (@jkup)
• Nagendran N (@SreeXD)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @H0onnn
• @liuxingbaoyu

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.24.5

v7.24.5 (2024-04-29)

Thanks @romgrk and @sossost for your first PRs!

🐛 Bug Fix

• babel-plugin-transform-classes, babel-traverse
  • #16377 fix: TypeScript annotation affects output (@liuxingbaoyu)
• babel-helpers, babel-plugin-proposal-explicit-resource-management, babel-runtime-corejs3
  • #16440 Fix suppressed error order (@sossost)
  • #16408 Await nullish async disposable (@JLHwung)

💅 Polish

• babel-parser
  • #16407 Recover from exported using declaration (@JLHwung)

🏠 Internal

• Other
  • #16414 Relax ESLint peerDependency constraint to allow v9 (@liuxingbaoyu)
• babel-parser
  • #16425 Improve @babel/parser AST types (@nicolo-ribaudo)
  • #16417 Always pass type argument to .startNode (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-helper-module-transforms, babel-helper-split-export-declaration, babel-helper-wrap-function, babel-helpers, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-proposal-explicit-resource-management, babel-plugin-transform-block-scoping, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-property-in-object, babel-plugin-transform-react-jsx-self, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-traverse
  • #16439 Make NodePath<T | U> distributive (@nicolo-ribaudo)
• babel-plugin-proposal-partial-application, babel-types
  • #16421 Remove JSXNamespacedName from valid CallExpression args (@nicolo-ribaudo)
• babel-plugin-transform-class-properties, babel-preset-env
  • #16406 Do not load unnecessary Babel 7 syntax plugins in Babel 8 (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-helpers, babel-preset-env, babel-runtime-corejs3
  • #16357 Performance: improve objectWithoutPropertiesLoose on V8 (@romgrk)

Committers: 6

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Rom Grk (@romgrk)
• @liuxingbaoyu
• ynnsuis (@sossost)

7.24.0

v7.24.0 (2024-02-28)

Thanks @ajihyf for your first PR!

Release post with summary and highlights: https://babeljs.io/7.24.0

🚀 New Feature

• babel-standalone
  • #11696 Export babel tooling packages in @babel/standalone (@ajihyf)
• babel-core, babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-transform-class-properties
  • #16267 Implement noUninitializedPrivateFieldAccess assumption (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-syntax-decorators, babel-plugin-transform-class-properties, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16242 Support decorator 2023-11 normative updates (@JLHwung)
• babel-preset-flow
  • #16309 [babel 7] Allow setting ignoreExtensions in Flow preset (@nicolo-ribaudo)
  • #16284 Add experimental_useHermesParser option in preset-flow (@liuxingbaoyu)
• babel-helper-import-to-platform-api, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-json-modules, babel-standalone
  • #16172 Add transform support for JSON modules imports (@nicolo-ribaudo)
• babel-plugin-transform-runtime
  • #16241 Add back moduleName option to @babel/plugin-transform-runtime (@nicolo-ribaudo)
• babel-parser, babel-types
  • #16277 Allow import attributes for TSImportType (@sosukesuzuki)

🐛 Bug Fix

• babel-plugin-proposal-do-expressions, babel-traverse
  • #16305 fix: avoid popContext on unvisited node paths (@JLHwung)
• babel-helper-create-class-features-plugin, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object
  • #16312 Fix class private properties when privateFieldsAsSymbols (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-transform-private-methods
  • #16307 Fix the support of arguments in private get/set method (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-decorators
  • #16287 Reduce decorator static property size (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16281 Fix evaluation order of decorators with cached receiver (@nicolo-ribaudo)
  • #16279 Fix decorator this memoization (@JLHwung)
  • #16266 Preserve static on decorated private accessor (@nicolo-ribaudo)
  • #16258 fix: handle decorated async private method and generator (@JLHwung)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-transform-async-generator-functions, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-typescript, babel-preset-env
  • #16275 Fix class private properties when privateFieldsAsProperties (@liuxingbaoyu)
• babel-helpers
  • #16268 Do not consider arguments in a helper as a global reference (@nicolo-ribaudo)
• babel-helpers, babel-plugin-proposal-decorators
  • #16270 Handle symbol key class elements decoration (@JLHwung)
  • #16265 Do not define access.get for public setter decorators (@nicolo-ribaudo)

💅 Polish

• babel-core, babel-helper-create-class-features-plugin, babel-preset-env
  • #12428 Suggest using BABEL_SHOW_CONFIG_FOR for config problems (@nicolo-ribaudo)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16278 Continue writing output.js when exec.js throws (@liuxingbaoyu)

🔬 Output optimization

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16306 Avoid intermediate functions for private accessors with decs (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties
  • #16294 More aggressively inline decorators in the static block (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-transform-private-methods
  • #16283 Do not use classPrivateMethodGet (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-decorators
  • #16287 Reduce decorator static property size (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties
  • #16280 Reduce element decorator temp variables (@JLHwung)
• babel-helper-create-class-features-plugin, babel-helper-fixtures, babel-helpers, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-optional-chaining-assign, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16261 Do not use descriptors for private class elements (@nicolo-ribaudo)
• babel-helpers, babel-plugin-proposal-decorators
  • #16263 Reduce helper size for decorator 2023-11 (@liuxingbaoyu)

Committers: 7

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• SUZUKI Sosuke (@sosukesuzuki)
• Yarden Shoham (@yardenshoham)
• @liuxingbaoyu
• flyafly (@ajihyf)

7.22.5

v7.22.5 (2023-06-08)

🐛 Bug Fix

• babel-preset-env, babel-standalone
  • #15675 Fix using syntax-unicode-sets-regex in standalone (@nicolo-ribaudo)

💅 Polish

• babel-core
  • #15683 Suggest -transform- when resolving missing plugins (@nicolo-ribaudo)

Committers: 4

• Avery (@nullableVoidPtr)
• Babel Bot (@babel-bot)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

7.21.5

v7.21.5 (2023-04-28)

👓 Spec Compliance

• babel-generator, babel-parser, babel-types
  • #15539 fix: Remove mixins and implements for DeclareInterface and InterfaceDeclaration (@liuxingbaoyu)

🐛 Bug Fix

• babel-core, babel-generator, babel-plugin-transform-modules-commonjs, babel-plugin-transform-react-jsx
  • #15515 fix: ) position with createParenthesizedExpressions (@liuxingbaoyu)
• babel-preset-env
  • #15580 Add syntax import meta to preset env (@JLHwung)

💅 Polish

• babel-types
  • #15546 Improve the layout of generated validators (@liuxingbaoyu)
• babel-core
  • #15535 Use lt instead of lte to check TS version for .cts config (@nicolo-ribaudo)

🏠 Internal

• babel-core
  • #15575 Use synchronous import.meta.resolve (@nicolo-ribaudo)
• babel-helper-fixtures, babel-preset-typescript
  • #15568 Handle .overrides and .env when resolving plugins/presets from fixture options (@JLHwung)
• babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin
  • #15548 Use semver package to compare versions (@nicolo-ribaudo)

Committers: 4

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

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.25.0

v7.25.0 (2024-07-26)

Thanks @davidtaylorhq and @slatereax for your first PR!

You can find the release blog post with some highlights at https://babeljs.io/blog/2024/07/26/7.25.0.

👓 Spec Compliance

• babel-helpers, babel-plugin-proposal-explicit-resource-management, babel-runtime-corejs3
  • #16537 await using normative updates (@JLHwung)
• babel-plugin-transform-typescript
  • #16602 Ensure enum members syntactically determinable to be strings do not get reverse mappings (@liuxingbaoyu)

🚀 New Feature

• babel-helper-create-class-features-plugin, babel-helper-function-name, babel-helper-plugin-utils, babel-helper-wrap-function, babel-plugin-bugfix-safari-class-field-initializer-scope, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-preset-env, babel-traverse, babel-types
  • #16658 Move ensureFunctionName to NodePath.prototype (@nicolo-ribaudo)
• babel-helper-hoist-variables, babel-helper-plugin-utils, babel-plugin-proposal-async-do-expressions, babel-plugin-transform-modules-systemjs, babel-traverse
  • #16644 Move hoistVariables to Scope.prototype (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-helper-module-transforms, babel-helper-plugin-utils, babel-helper-split-export-declaration, babel-plugin-transform-classes, babel-traverse, babel-types
  • #16645 Move splitExportDeclaration to NodePath.prototype (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-helper-environment-visitor, babel-helper-module-transforms, babel-helper-plugin-utils, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-plugin-transform-async-generator-functions, babel-plugin-transform-classes, babel-traverse
  • #16649 Move environment-visitor helper into @babel/traverse (@nicolo-ribaudo)
• babel-core, babel-parser
  • #16480 Expose wether a module has TLA or not as .extra.async (@nicolo-ribaudo)
• babel-compat-data, babel-plugin-bugfix-safari-class-field-initializer-scope, babel-preset-env
  • #16569 Introduce bugfix-safari-class-field-initializer-scope (@davidtaylorhq)
• babel-plugin-transform-block-scoping, babel-traverse, babel-types
  • #16551 Add NodePath#getAssignmentIdentifiers (@JLHwung)
• babel-helper-import-to-platform-api, babel-plugin-proposal-json-modules
  • #16579 Add uncheckedRequire option for JSON imports to CJS (@nicolo-ribaudo)
• babel-helper-transform-fixture-test-runner, babel-node
  • #16642 Allow using custom config in babel-node --eval (@slatereax)
• babel-compat-data, babel-helper-create-regexp-features-plugin, babel-plugin-proposal-duplicate-named-capturing-groups-regex, babel-plugin-transform-duplicate-named-capturing-groups-regex, babel-preset-env, babel-standalone
  • #16445 Add duplicate-named-capturing-groups-regex to preset-env (@JLHwung)

🐛 Bug Fix

• babel-generator
  • #16678 Print parens around as expressions on the LHS (@nicolo-ribaudo)
• babel-template, babel-types
  • #15286 fix: Props are lost when the template replaces the node (@liuxingbaoyu)

🏠 Internal

• Other
  • #16674 bump gulp to 5 (@JLHwung)
• babel-generator
  • #16651 Simplify the printing logic for ( before ambiguous tokens (@nicolo-ribaudo)
• babel-helper-function-name, babel-plugin-transform-arrow-functions, babel-plugin-transform-function-name, babel-preset-env, babel-traverse
  • #16652 Simplify helper-function-name logic (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-parser, babel-plugin-proposal-pipeline-operator
  • #16461 Some minor parser performance improvements for ts (@liuxingbaoyu)

🔬 Output optimization

• babel-plugin-transform-classes
  • #16670 Reduce redundant assertThisInitialized (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-helper-replace-supers, babel-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-object-super, babel-plugin-transform-private-methods, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16374 Improve super.x output (@liuxingbaoyu)
• babel-plugin-transform-class-properties, babel-plugin-transform-classes
  • #16656 Simplify output for anonymous classes with no methods (@nicolo-ribaudo)

Committers: 6

• Artem (@slatereax)
• Babel Bot (@babel-bot)
• David Taylor (@davidtaylorhq)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.22.20

v7.22.20 (2023-09-16)

🏠 Internal

• babel-helper-validator-identifier
  • #15973 Remove special-casing of U+200C and U+200D (@nicolo-ribaudo)
• babel-plugin-transform-dotall-regex
  • #15974 Update Unicode test fixtures (@JLHwung)

↩️ Revert

• babel-helper-remap-async-to-generator, babel-helper-wrap-function, babel-plugin-proposal-explicit-resource-management, babel-plugin-proposal-function-sent, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-runtime, babel-preset-env
  • #15979 Revert "Improve output when wrapping functions" (@jjonescz)

Committers: 3

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

7.22.17

v7.22.17 (2023-09-08)

Thanks @jordanbtucker for your first PR!

🐛 Bug Fix

• babel-core
  • #15947 Fix compatibility with Node.js 20.6 (@nicolo-ribaudo)
• babel-helper-module-transforms, babel-plugin-transform-modules-commonjs
  • #15941 Fix compiling duplicate ns imports to lazy CommonJS (@nicolo-ribaudo)
• babel-types
  • #15920 Make ClassDeclaration["id"] optional in babel-types (@jordanbtucker)

🔬 Output optimization

• babel-helper-remap-async-to-generator, babel-helper-wrap-function, babel-plugin-proposal-explicit-resource-management, babel-plugin-proposal-function-sent, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-runtime, babel-preset-env
  • #15922 Improve output when wrapping functions (e.g. async functions) (@liuxingbaoyu)

Committers: 3

• Jordan Tucker (@jordanbtucker)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

7.22.9

v7.22.9 (2023-07-12)

🐛 Bug Fix

• babel-plugin-transform-typescript
  • #15774 fix: Infinity in enums (@liuxingbaoyu)
• babel-helper-module-transforms, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-helper-wrap-function
  • #15771 Simplify helper dependencies (@JLHwung)

💅 Polish

• babel-generator
  • #15757 recordAndTupleSyntaxType defaults to "hash" (@coderaiser)

🏠 Internal

• #15748 Migrate to eslint.config.js (@JLHwung)
• #15758 Use Prettier 3 stable (@nicolo-ribaudo)

Committers: 5

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

7.22.5

v7.22.5 (2023-06-08)

🐛 Bug Fix

• babel-preset-env, babel-standalone
  • #15675 Fix using syntax-unicode-sets-regex in standalone (@nicolo-ribaudo)

💅 Polish

• babel-core
  • #15683 Suggest -transform- when resolving missing plugins (@nicolo-ribaudo)

Committers: 4

• Avery (@nullableVoidPtr)
• Babel Bot (@babel-bot)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.24.8

v7.24.8 (2024-07-11)

Thanks @H0onnn, @jkup and @SreeXD for your first pull requests!

👓 Spec Compliance

• babel-parser
  • #16567 Do not use strict mode in TS declare (@liuxingbaoyu)

🐛 Bug Fix

• babel-generator
  • #16630 Correctly print parens around in in for heads (@nicolo-ribaudo)
  • #16626 Fix printing of comments in await using (@nicolo-ribaudo)
  • #16591 fix typescript code generation for yield expression inside type expre… (@SreeXD)
• babel-parser
  • #16613 Disallow destructuring assignment in using declarations (@H0onnn)
  • #16490 fix: do not add .value: undefined to regexp literals (@liuxingbaoyu)
• babel-types
  • #16615 Remove boolean props from ObjectTypeInternalSlot visitor keys (@nicolo-ribaudo)
• babel-plugin-transform-typescript
  • #16566 fix: Correctly handle export import x = (@liuxingbaoyu)

💅 Polish

• babel-generator
  • #16625 Avoid unnecessary parens around async in for await (@nicolo-ribaudo)
• babel-traverse
  • #16619 Avoid checking Scope.globals multiple times (@liuxingbaoyu)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Jon Kuperman (@jkup)
• Nagendran N (@SreeXD)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @H0onnn
• @liuxingbaoyu

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.24.1

v7.24.1 (2024-03-19)

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16350 Fix decorated class computed keys ordering (@JLHwung)
  • #16344 Fix decorated class static field private access (@JLHwung)
• babel-plugin-proposal-decorators, babel-plugin-proposal-json-modules, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env
  • #16329 Respect moduleName for @babel/runtime/regenerator imports (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties
  • #16331 Fix decorator memoiser binding kind (@JLHwung)
• babel-helper-create-class-features-plugin, babel-helper-replace-supers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties
  • #16325 Fix decorator evaluation private environment (@JLHwung)

📝 Documentation

• #16319 Update SECURITY.md (@nicolo-ribaudo)

🏠 Internal

• babel-code-frame, babel-highlight
  • #16359 Replace chalk with picocolors (@nicolo-ribaudo)
• babel-helper-fixtures, babel-helpers, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow
  • #16352 Run Babel transform tests on old node if possible (@JLHwung)
• babel-helper-module-imports, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-json-modules, babel-plugin-proposal-record-and-tuple, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx
  • #16349 Support merging imports in import injector (@nicolo-ribaudo)
• Other
  • #16332 Test Babel 7 plugins compatibility with Babel 8 core (@nicolo-ribaudo)

🔬 Output optimization

• babel-helper-replace-supers, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-runtime
  • #16345 Optimize the use of assertThisInitialized after super() (@liuxingbaoyu)
• babel-plugin-transform-class-properties, babel-plugin-transform-classes
  • #16343 Use simpler assertThisInitialized more often (@liuxingbaoyu)
• babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-object-rest-spread, babel-traverse
  • #16342 Consider well-known and registered symbols as literals (@nicolo-ribaudo)
• babel-core, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-proposal-function-bind, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-function-name, babel-plugin-transform-modules-systemjs, babel-plugin-transform-parameters, babel-plugin-transform-private-property-in-object, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-spread, babel-plugin-transform-typescript, babel-preset-env
  • #16326 Reduce the use of class names (@liuxingbaoyu)

Committers: 4

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

7.23.4

v7.23.4 (2023-11-20)

🐛 Bug Fix

• babel-generator
  • #16104 fix: Pure comments missing parentheses (@liuxingbaoyu)

Committers: 4

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

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.28.5

v7.28.5 (2025-10-23)

Thank you @CO0Ki3, @Olexandr88, and @youthfulhps for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17446 Allow Runtime Errors for Function Call Assignment Targets (@liuxingbaoyu)
• babel-helper-validator-identifier
  • #17501 fix: update identifier to unicode 17 (@fisker)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private
  • #17534 Allow mixing private destructuring and rest (@CO0Ki3)
• babel-parser
  • #17521 Improve @babel/parser error typing (@JLHwung)
  • #17491 fix: improve ts-only declaration parsing (@JLHwung)
• babel-plugin-proposal-discard-binding, babel-plugin-transform-destructuring
  • #17519 fix: rest correctly returns plain array (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-plugin-transform-block-scoping, babel-plugin-transform-optional-chaining, babel-traverse, babel-types
  • #17503 Fix JSXIdentifier handling in isReferencedIdentifier (@JLHwung)
• babel-traverse
  • #17504 fix: ensure scope.push register in anonymous fn (@JLHwung)

🏠 Internal

• babel-types
  • #17494 Type checking babel-types scripts (@JLHwung)

🏃‍♀️ Performance

• babel-core
  • #17490 Faster finding of locations in buildCodeFrameError (@liuxingbaoyu)

Committers: 8

• Babel Bot (@babel-bot)
• Byeongho Yoo (@youthfulhps)
• Huáng Jùnliàng (@JLHwung)
• Hyeon Dokko (@CO0Ki3)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @Olexandr88
• @liuxingbaoyu
• fisker Cheung (@fisker)

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.24.5

v7.24.5 (2024-04-29)

Thanks @romgrk and @sossost for your first PRs!

🐛 Bug Fix

• babel-plugin-transform-classes, babel-traverse
  • #16377 fix: TypeScript annotation affects output (@liuxingbaoyu)
• babel-helpers, babel-plugin-proposal-explicit-resource-management, babel-runtime-corejs3
  • #16440 Fix suppressed error order (@sossost)
  • #16408 Await nullish async disposable (@JLHwung)

💅 Polish

• babel-parser
  • #16407 Recover from exported using declaration (@JLHwung)

🏠 Internal

• Other
  • #16414 Relax ESLint peerDependency constraint to allow v9 (@liuxingbaoyu)
• babel-parser
  • #16425 Improve @babel/parser AST types (@nicolo-ribaudo)
  • #16417 Always pass type argument to .startNode (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-helper-module-transforms, babel-helper-split-export-declaration, babel-helper-wrap-function, babel-helpers, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-proposal-explicit-resource-management, babel-plugin-transform-block-scoping, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-property-in-object, babel-plugin-transform-react-jsx-self, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-traverse
  • #16439 Make NodePath<T | U> distributive (@nicolo-ribaudo)
• babel-plugin-proposal-partial-application, babel-types
  • #16421 Remove JSXNamespacedName from valid CallExpression args (@nicolo-ribaudo)
• babel-plugin-transform-class-properties, babel-preset-env
  • #16406 Do not load unnecessary Babel 7 syntax plugins in Babel 8 (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-helpers, babel-preset-env, babel-runtime-corejs3
  • #16357 Performance: improve objectWithoutPropertiesLoose on V8 (@romgrk)

Committers: 6

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Rom Grk (@romgrk)
• @liuxingbaoyu
• ynnsuis (@sossost)

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by more commits than we can show here.

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

🚨 Babel has inefficient RegExp complexity in generated code with .replace when transpiling named capturing groups

Impact

When using Babel to compile regular expression named capturing groups, Babel will generate a polyfill for the .replace method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to .replace).

Your generated code is vulnerable if all the following conditions are true:

• You use Babel to compile regular expression named capturing groups
• You use the .replace method on a regular expression that contains named capturing groups
• Your code uses untrusted strings as the second argument of .replace

If you are using @babel/preset-env with the targets option, the transform that injects the vulnerable code is automatically enabled if:

• you use duplicated named capturing groups, and target any browser older than Chrome/Edge 126, Opera 112, Firefox 129, Safari 17.4, or Node.js 23
• you use any named capturing groups, and target any browser older than Chrome 64, Opera 71, Edge 79, Firefox 78, Safari 11.1, or Node.js 10

You can verify what transforms @babel/preset-env is using by enabling the debug option.

Patches

This problem has been fixed in @babel/helpers and @babel/runtime 7.26.10 and 8.0.0-alpha.17, please upgrade. It's likely that you do not directly depend on @babel/helpers, and instead you depend on @babel/core (which itself depends on @babel/helpers). Upgrading to @babel/core 7.26.10 is not required, but it guarantees that you are on a new enough @babel/helpers version.

Please note that just updating your Babel dependencies is not enough: you will also need to re-compile your code.

Workarounds

If you are passing user-provided strings as the second argument of .replace on regular expressions that contain named capturing groups, validate the input and make sure it does not contain the substring $< if it's then not followed by > (possibly with other characters in between).

References

This vulnerability was reported and fixed in #17173.

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by more commits than we can show here.

Too many releases to show here. View the full release notes.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.26.0

v7.26.0 (2024-10-25)

Thanks @timofei-iatsenko for your first PR!

You can find the release blog post with some highlights at https://babeljs.io/blog/2024/10/25/7.26.0.

🚀 New Feature

• babel-core, babel-generator, babel-parser, babel-plugin-syntax-import-assertions, babel-plugin-syntax-import-attributes, babel-preset-env, babel-standalone, babel-types
  • #16850 Enable import attributes parsing by default (@nicolo-ribaudo)
• babel-core
  • #16862 feat: support async plugin's pre/post (@timofei-iatsenko)
• babel-compat-data, babel-plugin-proposal-regexp-modifiers, babel-plugin-transform-regexp-modifiers, babel-preset-env, babel-standalone
  • #16692 Add transform-regexp-modifiers to preset-env (@JLHwung)
• babel-parser
  • #16849 feat: add startIndex parser option (@DylanPiercey)
• babel-generator, babel-parser, babel-plugin-syntax-flow
  • #16841 Always enable parsing of Flow enums (@nicolo-ribaudo)
• babel-helpers, babel-preset-typescript, babel-runtime-corejs3
  • #16794 Support import() in rewriteImportExtensions (@liuxingbaoyu)
• babel-generator, babel-parser
  • #16708 Add experimental format-preserving mode to @babel/generator (@nicolo-ribaudo)

🐛 Bug Fix

• babel-core
  • #16928 Workaround Node.js bug for parallel loading of TLA modules (@nicolo-ribaudo)
  • #16926 Fix loading of modules with TLA in Node.js 23 (@nicolo-ribaudo)

💅 Polish

• babel-plugin-proposal-json-modules, babel-plugin-transform-json-modules, babel-standalone
  • #16924 Rename proposal-json-modules to transform-json-modules (@nicolo-ribaudo)

🏠 Internal

• babel-code-frame, babel-highlight
  • #16896 Inline @babel/highlight in @babel/code-frame (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-types
  • #16732 Add kind to TSModuleDeclaration (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-helper-module-transforms, babel-plugin-transform-modules-commonjs
  • #16882 perf: Improve module transforms (@liuxingbaoyu)

Committers: 5

• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Timofei Iatsenko (@timofei-iatsenko)
• @liuxingbaoyu

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu

7.25.7

v7.25.7 (2024-10-02)

Thanks @DylanPiercey and @YuHyeonWook for your first PRs!

🐛 Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

💅 Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

🏠 Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)

Committers: 8

• Babel Bot (@babel-bot)
• Dylan Piercey (@DylanPiercey)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)
• hwook (@YuHyeonWook)

7.25.6

v7.25.6 (2024-08-29)

Thanks @j4k0xb for your first PR!

🐛 Bug Fix

• babel-generator
  • #16783 Properly print inner comments in TS array types (@nicolo-ribaudo)
  • #16775 fix: jsx whitespace is not properly preserved when retainLines (@liuxingbaoyu)
• babel-traverse
  • #16727 fix: path.getAssignmentIdentifiers may be undefined (@liuxingbaoyu)
• babel-parser
  • #16761 fix: improve static canFollowModifier checks (@JLHwung)
• babel-helpers, babel-plugin-transform-optional-chaining, babel-runtime-corejs3
  • #16769 Only wrap functions in superPropertyGet helper (@nicolo-ribaudo)

💅 Polish

• babel-generator, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-duplicate-named-capturing-groups-regex, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-plugin-transform-react-pure-annotations, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env
  • #16780 Do not enforce printing space between ( and comments (@nicolo-ribaudo)
• babel-plugin-syntax-import-assertions, babel-plugin-syntax-import-attributes
  • #16781 Don't throw when enabling both syntax-import-{assertions,attributes} (@nicolo-ribaudo)
• babel-generator
  • #16782 TS union/intersection nested in union does not need parens (@nicolo-ribaudo)

🏠 Internal

• babel-generator
  • #16777 Remove unused parent params in the generator (@nicolo-ribaudo)

Committers: 5

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @j4k0xb
• @liuxingbaoyu

7.24.7

v7.24.7 (2024-06-05)

🐛 Bug Fix

• babel-node
  • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
• babel-traverse
  • #16522 fix: incorrect constantViolations with destructuring (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
  • #16524 fix: Transform using in switch correctly (@liuxingbaoyu)

🏠 Internal

• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16525 Delete unused array helpers (@blakewilson)

Committers: 7

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• @liuxingbaoyu

7.24.6

v7.24.6 (2024-05-24)

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #16514 Fix source maps for private member expressions (@nicolo-ribaudo)
• babel-core, babel-generator, babel-plugin-transform-modules-commonjs
  • #16515 Fix source maps for template literals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16485 Support undecorated static accessor in anonymous classes (@JLHwung)
  • #16484 Fix decorator bare yield await (@JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #16483 Fix: throw TypeError if addInitializer is called after finished (@JLHwung)
• babel-parser, babel-plugin-transform-typescript
  • #16476 fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16501 Generate helper metadata at build time (@nicolo-ribaudo)
• babel-helpers
  • #16499 Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)
• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #16495 Move all runtime helpers to individual files (@nicolo-ribaudo)
• babel-parser, babel-traverse
  • #16482 Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)
• Other
  • #16466 Migrate import assertions syntax (@JLHwung)

Committers: 9

• Amjad Yahia Robeen Hassan (@amjed-98)
• Babel Bot (@babel-bot)
• Blake Wilson (@blakewilson)
• Huáng Jùnliàng (@JLHwung)
• Lucas Coelho (@coelhucas)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sukka (@SukkaW)
• Zzzen (@Zzzen)
• @liuxingbaoyu

7.24.1

v7.24.1 (2024-03-19)

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16350 Fix decorated class computed keys ordering (@JLHwung)
  • #16344 Fix decorated class static field private access (@JLHwung)
• babel-plugin-proposal-decorators, babel-plugin-proposal-json-modules, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env
  • #16329 Respect moduleName for @babel/runtime/regenerator imports (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties
  • #16331 Fix decorator memoiser binding kind (@JLHwung)
• babel-helper-create-class-features-plugin, babel-helper-replace-supers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties
  • #16325 Fix decorator evaluation private environment (@JLHwung)

📝 Documentation

• #16319 Update SECURITY.md (@nicolo-ribaudo)

🏠 Internal

• babel-code-frame, babel-highlight
  • #16359 Replace chalk with picocolors (@nicolo-ribaudo)
• babel-helper-fixtures, babel-helpers, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow
  • #16352 Run Babel transform tests on old node if possible (@JLHwung)
• babel-helper-module-imports, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-json-modules, babel-plugin-proposal-record-and-tuple, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx
  • #16349 Support merging imports in import injector (@nicolo-ribaudo)
• Other
  • #16332 Test Babel 7 plugins compatibility with Babel 8 core (@nicolo-ribaudo)

🔬 Output optimization

• babel-helper-replace-supers, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-runtime
  • #16345 Optimize the use of assertThisInitialized after super() (@liuxingbaoyu)
• babel-plugin-transform-class-properties, babel-plugin-transform-classes
  • #16343 Use simpler assertThisInitialized more often (@liuxingbaoyu)
• babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-object-rest-spread, babel-traverse
  • #16342 Consider well-known and registered symbols as literals (@nicolo-ribaudo)
• babel-core, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-proposal-function-bind, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-function-name, babel-plugin-transform-modules-systemjs, babel-plugin-transform-parameters, babel-plugin-transform-private-property-in-object, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-spread, babel-plugin-transform-typescript, babel-preset-env
  • #16326 Reduce the use of class names (@liuxingbaoyu)

Committers: 4

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

7.23.3

v7.23.3 (2023-11-09)

🐛 Bug Fix

• babel-plugin-transform-typescript
  • #16071 Strip type-only TS namespaces (@colinaaa)
• babel-generator
  • #16078 Fix indentation when generating comments with concise: true (@liuxingbaoyu)
• babel-compat-data, babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-preset-env
  • #14295 Add a bugfix plugin for https://crbug.com/v8/12421 (@nicolo-ribaudo)
• babel-plugin-transform-object-super
  • #15948 fix: super.x in a loop (@liuxingbaoyu)
• babel-helper-module-transforms, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd
  • #16015 fix: handle __proto__ exports name in CJS/AMD/UMD (@magic-akari)

📝 Documentation

• #16044 docs: Update links in @babel/eslint-parser README (@aryehb)

🏠 Internal

• babel-core, babel-preset-env
  • #15988 Refactor handling of modules plugins in preset-env (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-generator
  • #16061 perf: Improve @babel/generator performance (@liuxingbaoyu)
• babel-traverse
  • #16060 Avoid dynamic dispatch when calling wrapCheck (@yepitschunked)

🔬 Output optimization

• babel-plugin-transform-computed-properties
  • #6652 Optimize computed properties output (byte-wise) (@Andarist)

Committers: 9

• Babel Bot (@babel-bot)
• Colin (@colinaaa)
• Huáng Jùnliàng (@JLHwung)
• Mateusz Burzyński (@Andarist)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @aryehb
• @liuxingbaoyu
• @magic-akari
• @yepitschunked

7.22.5

v7.22.5 (2023-06-08)

🐛 Bug Fix

• babel-preset-env, babel-standalone
  • #15675 Fix using syntax-unicode-sets-regex in standalone (@nicolo-ribaudo)

💅 Polish

• babel-core
  • #15683 Suggest -transform- when resolving missing plugins (@nicolo-ribaudo)

Committers: 4

• Avery (@nullableVoidPtr)
• Babel Bot (@babel-bot)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu

Does any of this look wrong? Please let us know.

See the full diff on Github. The new version differs by 2 commits:

• v7.29.7
• Add v7.29.6 to CHANGELOG.md [skip ci]

7.29.7

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

7.27.1

v7.27.1 (2025-04-30)

Thanks @kermanx and @woaitsAryan for your first PRs!

👓 Spec Compliance

• babel-parser
  • #17254 Allow using of as lexical declaration within for (@JLHwung)
  • #17230 Disallow get/set in TSPropertySignature (@JLHwung)
• babel-parser, babel-types
  • #17193 Stricter TSImportType options parsing (@JLHwung)

🐛 Bug Fix

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-traverse
  • #17137 fix: do expressions should allow early exit (@kermanx)
• babel-helper-wrap-function, babel-plugin-transform-async-to-generator
  • #17251 Fix: propagate argument evaluation errors through async promise chain (@magic-akari)
• babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
  • #17231 fix apply()/call() annotated as pure (@Lacsw)
• babel-helper-fixtures, babel-parser
  • #17233 Create ChainExpression within TSInstantiationExpression (@JLHwung)
• babel-generator, babel-parser
  • #17226 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 2) (@JLHwung)
• babel-parser
  • #17224 Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 1) (@JLHwung)
  • #17080 Fix start of TSParameterProperty (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17228 Update firefox bugfix compat data (@JLHwung)
• babel-traverse
  • #17156 fix: Objects and arrays with multiple references should not be evaluated (@liuxingbaoyu)
• babel-generator
  • #17216 Fix: support const type parameter in generator (@JLHwung)

💅 Polish

• babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-transform-arrow-functions, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-traverse
  • #17221 Reduce generated names size for the 10th-11th (@nicolo-ribaudo)

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17263 Remove unused regenerator-runtime dep in @babel/runtime (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #17256 Tune plugin compat data (@JLHwung)
• babel-compat-data, babel-standalone
  • #17236 migrate babel-compat-data build script to mjs (@JLHwung)
• babel-register
  • #16844 Migrate @babel/register to cts (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17205 Inline regenerator in the relevant packages (@nicolo-ribaudo)
• All packages
  • #17207 Enforce node protocol import (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs3
  • #16538 Reduce interopRequireWildcard size (@liuxingbaoyu)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #17213 Reduce regeneratorRuntime size (@liuxingbaoyu)

Committers: 9

• Aryan Bharti (@woaitsAryan)
• Babel Bot (@babel-bot)
• Frolov Roman (@Lacsw)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu
• @magic-akari
• _Kerman (@kermanx)
• fisker Cheung (@fisker)

7.25.9

v7.25.9 (2024-10-22)

Thanks @victorenator for your first PR!

🐛 Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

🏠 Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)
• Every package
  • #16917 fix: Accidentally published tsconfig files (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)

Committers: 4

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Viktar Vaŭčkievič (@victorenator)
• @liuxingbaoyu