Changelog

Tags:

• 💥 [Breaking Change]
• 👓 [Spec Compliance]
• 🚀 [New Feature]
• 🐛 [Bug Fix]
• 📝 [Documentation]
• 🏠 [Internal]
• 💅 [Polish]

Note: Gaps between patch versions are faulty, broken or test releases.

This file contains the changelog starting from v8.0.0-alpha.0.

• See CHANGELOG - v7.15.0 to v7.28.5 for v7.15.0 to v7.28.5 changes (the last common release between the v8 and v7 release lines was v7.28.5).
• See CHANGELOG - v7.0.0 to v7.14.9 for v7.0.0 to v7.14.9 changes.
• See CHANGELOG - v7 prereleases for v7.0.0-alpha.1 to v7.0.0-rc.4 changes.
• See CHANGELOG - v4, CHANGELOG - v5, and CHANGELOG - v6 for v4.x-v6.x changes.
• See CHANGELOG - 6to5 for the pre-4.0.0 version changelog.
• See Babylon's CHANGELOG for the Babylon pre-7.0.0-beta.29 version changelog.
• See babel-eslint's releases for the changelog before @babel/eslint-parser 7.8.0.
• See eslint-plugin-babel's releases for the changelog before @babel/eslint-plugin 7.8.0.

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

👓 Spec Compliance

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

💥 Breaking Change

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

🚀 New Feature

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

🐛 Bug Fix

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

💅 Polish

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

📝 Documentation

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

🏠 Internal

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

🏃‍♀️ Performance

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

v8.0.0-rc.2 (2026-02-15)

💥 Breaking Change

• Other
  • #17766 Remove unused code for old ESLint versions (@liuxingbaoyu)
• babel-code-frame
  • #17772 Remove deprecated default export from @babel/code-frame (@fisker)

🐛 Bug Fix

• babel-helpers, babel-plugin-transform-async-generator-functions, babel-runtime-corejs3
  • #17797 fix: Properly handle await in finally (@liuxingbaoyu)
• babel-parser
  • #17796 Support ESLint 10 (@JLHwung)
• babel-preset-env
  • #17787 Fix: preset-env include/exclude should accept bugfix plugins (@JLHwung)
• babel-generator
  • #17781 fix: preserve trailing comma in optional call args (@JLHwung)
  • #17774 Fix undefined indentation when exactly 64 indents (@YoussefHenna)
• babel-standalone
  • #17770 fix: ensure targets.esmodules is validated (@JLHwung)

💅 Polish

• babel-core
  • #17778 Improve core typings (@JLHwung)

📝 Documentation

• babel-parser
  • #17786 docs: update spec.md (@JLHwung)

🏠 Internal

• babel-build-external-helpers, babel-cli, babel-helper-builder-react-jsx, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-fixtures, babel-helper-import-to-platform-api, babel-helper-module-transforms, babel-helper-plugin-utils, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-node, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-bugfix-safari-class-field-initializer-scope, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-plugin-external-helpers, babel-plugin-proposal-async-do-expressions, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-discard-binding, babel-plugin-proposal-do-expressions, babel-plugin-proposal-export-default-from, babel-plugin-proposal-function-bind, babel-plugin-proposal-function-sent, babel-plugin-proposal-import-defer, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-optional-chaining-assign, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-throw-expressions, babel-plugin-syntax-async-do-expressions, babel-plugin-syntax-decorators, babel-plugin-syntax-destructuring-private, babel-plugin-syntax-do-expressions, babel-plugin-syntax-export-default-from, babel-plugin-syntax-flow, babel-plugin-syntax-function-bind, babel-plugin-syntax-function-sent, babel-plugin-syntax-import-defer, babel-plugin-syntax-import-source, babel-plugin-syntax-jsx, babel-plugin-syntax-module-blocks, babel-plugin-syntax-optional-chaining-assign, babel-plugin-syntax-partial-application, babel-plugin-syntax-pipeline-operator, babel-plugin-syntax-throw-expressions, babel-plugin-syntax-typescript, babel-plugin-transform-arrow-functions, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-classes, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-dotall-regex, babel-plugin-transform-duplicate-keys, babel-plugin-transform-duplicate-named-capturing-groups-regex, babel-plugin-transform-dynamic-import, babel-plugin-transform-explicit-resource-management, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-export-namespace-from, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-for-of, babel-plugin-transform-function-name, babel-plugin-transform-instanceof, babel-plugin-transform-jscript, babel-plugin-transform-json-modules, babel-plugin-transform-json-strings, babel-plugin-transform-literals, babel-plugin-transform-logical-assignment-operators, babel-plugin-transform-member-expression-literals, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-new-target, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-numeric-separator, babel-plugin-transform-object-rest-spread, babel-plugin-transform-object-set-prototype-of-to-assign, babel-plugin-transform-object-super, babel-plugin-transform-optional-catch-binding, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-property-literals, babel-plugin-transform-property-mutators, babel-plugin-transform-proto-to-assign, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-display-name, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-plugin-transform-react-pure-annotations, babel-plugin-transform-regenerator, babel-plugin-transform-regexp-modifiers, babel-plugin-transform-reserved-words, babel-plugin-transform-runtime, babel-plugin-transform-shorthand-properties, babel-plugin-transform-spread, babel-plugin-transform-sticky-regex, babel-plugin-transform-strict-mode, babel-plugin-transform-template-literals, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-plugin-transform-unicode-escapes, babel-plugin-transform-unicode-property-regex, babel-plugin-transform-unicode-regex, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow, babel-preset-react, babel-preset-typescript, babel-register
  • #17800 Set peer dep on @babel/core to workspace:^ (@nicolo-ribaudo)
• babel-parser, babel-plugin-transform-explicit-resource-management
  • #17793 Remove Babel 7 plugins from parser types (@nicolo-ribaudo)
• babel-plugin-proposal-discard-binding, babel-plugin-proposal-import-wasm-source, babel-plugin-syntax-explicit-resource-management, babel-plugin-syntax-import-assertions, babel-plugin-syntax-import-attributes, babel-plugin-transform-block-scoping, babel-plugin-transform-json-modules, babel-standalone
  • #17792 Archive syntax plugins enabled by default (@nicolo-ribaudo)

v8.0.0-rc.1 (2026-01-31)

💥 Breaking Change

• Other
  • #17763 Drop support for eslint v7-v8 (@liuxingbaoyu)
  • #17755 Make eslint-parser/experimental-worker the default (@liuxingbaoyu)
• babel-register
  • #17762 Remove browser entrypoint for @babel/register (@nicolo-ribaudo)
• babel-parser, babel-plugin-proposal-partial-application, babel-plugin-syntax-partial-application
  • #17760 [Babel 8]: partial-application plugin requires "version" option (@JLHwung)
• babel-core, babel-plugin-transform-runtime, babel-register
  • #17756 Use package.json#imports for browser-specific code (@nicolo-ribaudo)
• babel-build-external-helpers, babel-cli
  • #17746 [Babel 8] Extract babel-build-external-helpers (@JLHwung)
• babel-traverse
  • #17722 Remove NodePath#visit (@liuxingbaoyu)
• babel-cli, babel-node
  • #17741 [Babel 8] Disallow excess arguments in babel-external-helpers (@JLHwung)
• babel-generator, babel-plugin-proposal-pipeline-operator, babel-traverse, babel-types
  • #17732 [Babel 8] Remove smart pipeline support and remove accessor property from Standardized alias (@JLHwung)
• babel-plugin-transform-object-assign, babel-standalone
  • #17619 [Babel 8] Remove @babel/plugin-transform-object-assign (@liuxingbaoyu)
• babel-plugin-transform-runtime, babel-preset-env
  • #17701 [Babel 8]: clean up unused preset-env data entries (@JLHwung)

🚀 New Feature

• babel-code-frame, babel-core
  • #17070 feat: Allow specifying startLine in code frame (@liuxingbaoyu)
• babel-types
  • #17423 Add attributes to import/export builder (@JLHwung)
• babel-standalone
  • #17653 feat(standalone): export async transform (@JLHwung)
  • #17482 feat: read standalone targets from data-targets (@JLHwung)

🐛 Bug Fix

• babel-parser
  • #17761 fix(parser): correctly parse type assertions in extends clause (@wulu007)
  • #17720 fix(parser): improve super type argument parsing (@JLHwung)
• babel-register
  • #17229 [Babel 8] Refactor register cache (@liuxingbaoyu)
• babel-traverse
  • #17702 fix(babel-traverse): check variable shadowing for global object callees (@wulu007)
• babel-core
  • #17733 fix: Correct the type of plugin parameter (@liuxingbaoyu)
• babel-plugin-proposal-partial-application
  • #17662 fix(partial-app): support super method call (@JLHwung)
• babel-compat-data, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping, babel-preset-env
  • #17691 Fix hoisting of function declarations in loops and switch (@liuxingbaoyu)
• babel-generator
  • #17717 fix: improve parentheses rule of conditional (@JLHwung)

💅 Polish

• babel-parser
  • #17531 Improve @babel/parser error types (@liuxingbaoyu)

🏠 Internal

• babel-code-frame, babel-helpers, babel-node, babel-types
  • #17678 Replace picocolors with node:util.styleText() in @babel/code-frame (@fisker)
• Other
  • #17751 Add CI check to make sure packages exist on npm (@nicolo-ribaudo)
• babel-helper-transform-fixture-test-runner
  • #17743 Use require(esm) for @babel/core (@nicolo-ribaudo)
• babel-template
  • #17748 chore: Improve template exception handling (@liuxingbaoyu)

🏃‍♀️ Performance

• babel-generator, babel-runtime-corejs3
  • #17718 [Babel 8] Improve generator performance (@liuxingbaoyu)

v8.0.0-beta.4 (2026-01-12)

💥 Breaking Change

• babel-generator, babel-parser, babel-plugin-transform-typescript, babel-types
  • #17659 Drop support for TS module <identifier> (@nicolo-ribaudo)
• babel-preset-env, babel-preset-typescript
  • #17670 breaking(preset-env): remove isPluginRequired export (@JLHwung)
• babel-parser
  • #17666 [Babel 8]: Ensure parseExpression with tokens: true returns the exported tokens (@JLHwung)
• babel-traverse
  • #17671 breaking(traverse): remove blacklist option (@JLHwung)
• babel-plugin-transform-react-jsx-compat, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx-source, babel-standalone
  • #17620 [Babel 8] Remove plugin-transform-react-{compat,source,self} (@liuxingbaoyu)
• babel-node
  • #17639 Remove regenerator-runtime from @babel/node (@nicolo-ribaudo)
• babel-generator, babel-helper-create-class-features-plugin, babel-parser, babel-plugin-proposal-decorators, babel-plugin-syntax-decorators, babel-plugin-transform-class-properties, babel-standalone, babel-traverse
  • #17643 [Babel 8] Remove decorator parser plugin options (@JLHwung)
• babel-plugin-proposal-import-attributes-to-assertions
  • #17650 [Babel 8] Archive proposal-import-attributes-to-assertions (@JLHwung)
• babel-compat-data, babel-helper-compilation-targets, babel-preset-env
  • #17633 Remove corejs2 and legacy files from compat-data (@nicolo-ribaudo)
• babel-runtime-corejs3, babel-runtime
  • #17635 Remove ./regenerator entrypoint from @babel/runtime (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-types
  • #17610 [babel 8] Rename TSImportType.argument to .source (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-plugin-proposal-import-attributes-to-assertions, babel-plugin-proposal-import-wasm-source, babel-plugin-transform-json-modules, babel-types
  • #17603 [babel 8] Fully remove import assertions (@nicolo-ribaudo)
• babel-generator, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-record-and-tuple, babel-plugin-syntax-record-and-tuple, babel-standalone, babel-traverse, babel-types
  • #17528 Fully remove Records and Tuples support (@nicolo-ribaudo)

🐛 Bug Fix

• babel-compat-data, babel-preset-env
  • #16475 Fix order of transform-block-scoped-functions in preset-env (@liuxingbaoyu)
• babel-traverse
  • #17568 Fix traverse NodePath caching (@coderaiser)
  • #17570 [Babel 8] fix: Correctly handle export references (@liuxingbaoyu)

💅 Polish

• babel-runtime-corejs3, babel-runtime
  • #17529 [babel 8] Add sideEffects: false to babel-runtime (@nicolo-ribaudo)

🏠 Internal

• babel-cli, babel-code-frame, babel-compat-data, babel-core, babel-generator, babel-helper-annotate-as-pure, babel-helper-builder-react-jsx, babel-helper-check-duplicate-nodes, babel-helper-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-fixtures, babel-helper-globals, babel-helper-import-to-platform-api, babel-helper-member-expression-to-functions, babel-helper-module-imports, babel-helper-module-transforms, babel-helper-optimise-call-expression, babel-helper-plugin-test-runner, babel-helper-plugin-utils, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-helper-simple-access, babel-helper-skip-transparent-expression-wrappers, babel-helper-string-parser, babel-helper-transform-fixture-test-runner, babel-helper-validator-identifier, babel-helper-validator-option, babel-helper-wrap-function, babel-helpers, babel-node, babel-parser, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-bugfix-safari-class-field-initializer-scope, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-plugin-external-helpers, babel-plugin-proposal-async-do-expressions, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-discard-binding, babel-plugin-proposal-do-expressions, babel-plugin-proposal-export-default-from, babel-plugin-proposal-function-bind, babel-plugin-proposal-function-sent, babel-plugin-proposal-import-defer, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-optional-chaining-assign, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-throw-expressions, babel-plugin-syntax-async-do-expressions, babel-plugin-syntax-decorators, babel-plugin-syntax-destructuring-private, babel-plugin-syntax-do-expressions, babel-plugin-syntax-explicit-resource-management, babel-plugin-syntax-export-default-from, babel-plugin-syntax-flow, babel-plugin-syntax-function-bind, babel-plugin-syntax-function-sent, babel-plugin-syntax-import-assertions, babel-plugin-syntax-import-attributes, babel-plugin-syntax-import-defer, babel-plugin-syntax-import-source, babel-plugin-syntax-jsx, babel-plugin-syntax-module-blocks, babel-plugin-syntax-optional-chaining-assign, babel-plugin-syntax-partial-application, babel-plugin-syntax-pipeline-operator, babel-plugin-syntax-throw-expressions, babel-plugin-syntax-typescript, babel-plugin-transform-arrow-functions, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-classes, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-dotall-regex, babel-plugin-transform-duplicate-keys, babel-plugin-transform-duplicate-named-capturing-groups-regex, babel-plugin-transform-dynamic-import, babel-plugin-transform-explicit-resource-management, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-export-namespace-from, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-for-of, babel-plugin-transform-function-name, babel-plugin-transform-instanceof, babel-plugin-transform-jscript, babel-plugin-transform-json-modules, babel-plugin-transform-json-strings, babel-plugin-transform-literals, babel-plugin-transform-logical-assignment-operators, babel-plugin-transform-member-expression-literals, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-new-target, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-numeric-separator, babel-plugin-transform-object-assign, babel-plugin-transform-object-rest-spread, babel-plugin-transform-object-set-prototype-of-to-assign, babel-plugin-transform-object-super, babel-plugin-transform-optional-catch-binding, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-property-literals, babel-plugin-transform-property-mutators, babel-plugin-transform-proto-to-assign, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-display-name, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-plugin-transform-react-pure-annotations, babel-plugin-transform-regenerator, babel-plugin-transform-regexp-modifiers, babel-plugin-transform-reserved-words, babel-plugin-transform-runtime, babel-plugin-transform-shorthand-properties, babel-plugin-transform-spread, babel-plugin-transform-sticky-regex, babel-plugin-transform-strict-mode, babel-plugin-transform-template-literals, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-plugin-transform-unicode-escapes, babel-plugin-transform-unicode-property-regex, babel-plugin-transform-unicode-regex, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow, babel-preset-react, babel-preset-typescript, babel-register, babel-runtime-corejs3, babel-runtime, babel-standalone, babel-template, babel-traverse, babel-types
  • #17660 Update publishing process for Babel 8 (@nicolo-ribaudo)
• babel-cli, babel-helper-transform-fixture-test-runner, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread
  • #17676 Remove unused deps (@nicolo-ribaudo)
• babel-code-frame, babel-core
  • #17677 Stop vendoring import-meta-resolve (@nicolo-ribaudo)
• babel-core
  • #17665 chore: add preset-typescript as optional peer dep (@JLHwung)
  • #17569 Add BABEL_7_TO_8_DANGEROUSLY_DISABLE_VERSION_CHECK (@nicolo-ribaudo)
• babel-helpers, babel-runtime-corejs3, babel-runtime
  • #17661 Remove @onlyBabel7 helpers (@nicolo-ribaudo)
• babel-core, babel-generator, babel-helper-create-class-features-plugin, babel-helper-skip-transparent-expression-wrappers, babel-plugin-transform-flow-comments, babel-plugin-transform-for-of, babel-plugin-transform-typescript
  • #17651 cleanup @ts-expect-error(Babel 7 vs Babel 8) comments (Part 1) (@JLHwung)
• babel-code-frame
  • #17645 Bump js-tokens to v10 (@fisker)
• babel-parser
  • #17641 [Babel 8] Parser cleanup (@JLHwung)
• babel-core, babel-traverse
  • #17638 refactor: replace debug with obug (@sxzz)
• babel-helper-builder-react-jsx
  • #17621 [babel 8] Remove @babel/types dep from helper-builder-react-jsx (@nicolo-ribaudo)
• babel-generator, babel-parser
  • #17597 Record and tuple cleanup (@JLHwung)
• babel-cli, babel-types
  • #17594 [Babel 8]: Bump glob to v12 (@JLHwung)
• babel-cli
  • #17590 [Babel 8] chore: bump glob to v11 (@JLHwung)

v8.0.0-beta.3 (2025-10-23)

💥 Breaking Change

• babel-parser
  • #17505 [Babel 8] Treat allowSuperOutsideMethod as top-level only (@JLHwung)

🐛 Bug Fix

• babel-traverse, babel-types
  • #17499 Enable strictNullChecks for traverse (@liuxingbaoyu)
• babel-plugin-transform-runtime
  • #17512 [babel 8] Update default @babel/runtime version (@nicolo-ribaudo)

💅 Polish

• babel-core, babel-helper-transform-fixture-test-runner, babel-plugin-transform-runtime, babel-preset-env, babel-preset-react, babel-preset-typescript
  • #17404 Improve @babel/core types (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-flow-comments, babel-plugin-transform-logical-assignment-operators, babel-traverse, babel-types
  • #17500 [Babel 8] Better node type definitions for computed (@liuxingbaoyu)

🏠 Internal

• babel-plugin-transform-runtime
  • #17511 [babel 8] Remove semver dependency from transform-runtime (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-traverse
  • #17043 [Babel 8] Improve scope information collection performance (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-transform-modules-systemjs, babel-plugin-transform-typescript
  • #17518 [Babel 8] Use t.traverseFast to replace some path.traverse (@liuxingbaoyu)

v8.0.0-beta.2 (2025-09-05)

💥 Breaking Change

• babel-standalone
  • #17421 Do not enable default plugins in @babel/standalone (@gwillen)

🐛 Bug Fix

• babel-types
  • #17495 fix: allow d and v flag in regExpLiteral builder (@JLHwung)
• babel-parser
  • #17479 [Babel 8] Align TSMappedType AST (@JLHwung)

💅 Polish

• babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-object-rest-spread, babel-traverse
  • #17485 Improve @babel/traverse typings (@JLHwung)
• babel-core, babel-helpers, babel-runtime-corejs3, babel-traverse, babel-types
  • #17471 Improve @babel/core typings (@JLHwung)
• babel-core
  • #17470 export PartialConfig and NormalizedOptions (@JLHwung)

🏠 Internal

• #17468 build(Babel 8): disable JSON module transform (@JLHwung)

v8.0.0-beta.1 (2025-07-02)

💥 Breaking Change

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-plugin-transform-object-rest-spread, babel-traverse, babel-types
  • #17391 LVal coverage updates (Part 2) (@JLHwung)
• babel-parser, babel-traverse, babel-types
  • #17378 Accept bigints in t.bigIntLiteral factory (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread, babel-types
  • #17387 [Babel 8]: Fix incorrect LVal coverage (@JLHwung)

🐛 Bug Fix

• babel-types
  • #17398 fix: BABEL_TYPES_8_BREAKING in Babel 8 (@liuxingbaoyu)

🏠 Internal

• babel-types
  • #17361 Set binary operator typings to a more precise union (@RReverser)

v8.0.0-beta.0 (2025-05-30)

💥 Breaking Change

• babel-helpers, babel-plugin-transform-regenerator, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #17237 [babel 8] Do not replace global regeneratorRuntime references in regenerator transform (@nicolo-ribaudo)
• babel-compat-data, babel-helper-compilation-targets, babel-preset-env
  • #17267 [Babel 8] Directly export the JSON files from @babel/compat-data (@nicolo-ribaudo)
• babel-parser
  • #17265 [babel 8] Drop CJS support from @babel/parser (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-record-and-tuple, babel-standalone, babel-traverse
  • #17242 [Babel 8]: Remove record and tuple syntax support (@JLHwung)
• babel-traverse, babel-types
  • #17217 Harden variable declarator validations (@JLHwung)
• All packages
  • #17204 [Babel 8] Bump nodejs requirements to ^20.19.0 || >= 22.12.0 (@JLHwung)
• babel-helper-compilation-targets, babel-preset-env
  • #17188 [Babel 8] Align esmodules: true behaviour to intersect (@JLHwung)

📢 Deprecation

• babel-types
  • #17133 [babel 8] Deprecate uppercase builders (@nicolo-ribaudo)

🏠 Internal

• babel-traverse
  • #16624 [Babel 8] Change scope.{references,uids} to Set (@liuxingbaoyu)
• babel-core
  • #17261 [babel 8] Remove unnecessary CJS ESM wrapper (@nicolo-ribaudo)
• babel-helpers, babel-plugin-transform-react-jsx, babel-preset-env
  • #17211 Babel 8 cleanup (@JLHwung)
• babel-plugin-transform-block-scoping, babel-traverse, babel-types
  • #17148 [Babel 8] Remove BLOCK_SCOPED_SYMBOL and NOT_LOCAL_BINDING (@liuxingbaoyu)
• babel-plugin-transform-regenerator, babel-plugin-transform-typeof-symbol
  • #17186 Cleanup babel 8 todo item (@JLHwung)

🏃‍♀️ Performance

• babel-traverse
  • #16965 [Babel 8] perf: Improve traverse performance (@liuxingbaoyu)

v8.0.0-alpha.17 (2025-03-11)

💥 Breaking Change

• babel-parser, babel-types
  • #17139 [Babel 8] Parse TSHeritageBase.expression as an expression (@JLHwung)

v8.0.0-alpha.16 (2025-02-14)

💥 Breaking Change

• babel-types
  • #17099 [babel 8] Remove legacy .d.ts for TypeScript <= 4.0 (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-plugin-transform-template-literals, babel-traverse, babel-types
  • #17066 [Babel 8] Create TSTemplateLiteralType (@JLHwung)
• babel-generator, babel-parser, babel-plugin-transform-typescript, babel-types
  • #17073 [Babel 8] Parse export import = as an ExportNamedDeclaration (@JLHwung)
• babel-preset-env
  • #17078 [babel 8] Remove bugfixes option (@nicolo-ribaudo)
• babel-parser
  • #17063 [Babel 8] Create TSEmptyBodyFunctionExpression also on invalid input (@JLHwung)
• babel-parser, babel-plugin-transform-typescript, babel-types
  • #17059 [Babel 8] Create ThisExpression for typeof this (@JLHwung)

🐛 Bug Fix

• babel-generator
  • #17131 [Babel 8] Add several TS type parentheses rules (@JLHwung)
  • #17125 fix: Missing parentheses when printing a TS arrow function type in a union (@liuxingbaoyu)
• babel-parser
  • #17106 Fix TS non-array type start (@JLHwung)

🏠 Internal

• babel-parser, babel-plugin-proposal-pipeline-operator, babel-plugin-syntax-pipeline-operator
  • #17058 [babel 8] Remove remaining references to minimal/smart pipelines (@nicolo-ribaudo)

v8.0.0-alpha.15 (2025-01-10)

💥 Breaking Change

• babel-generator, babel-parser, babel-plugin-transform-typescript, babel-traverse, babel-types
  • #16979 [Babel 8] Create TSEnumBody for TSEnumDeclaration (@JLHwung)
• babel-parser, babel-types
  • #17046 [Babel 8]: wrap the TSImportType's argument within a TSLiteralType (@JLHwung)
• babel-generator, babel-parser, babel-types
  • #17042 [Babel 8] Rename typeParameters to typeArguments in TSImportType (@JLHwung)
  • #17017 [Babel 8]: rename typeParameters to typeArguments for TSClassImplements and TSInterfaceHeritage (@JLHwung)
  • #17012 Rename typeParameters to typeArguments for TSTypeQuery (@JLHwung)
• babel-generator, babel-parser, babel-plugin-transform-typescript, babel-types
  • #17020 Rename typeParameters to typeArguments for call expression alike (@JLHwung)
• babel-parser
  • #17014 [Babel 8] Create TSAbstract{Method,Property}Definition (@JLHwung)

🏠 Internal

• babel-generator
  • #17057 [babel 8] Remove DecimalLiteral printing logic (@nicolo-ribaudo)

v8.0.0-alpha.14 (2024-12-06)

💥 Breaking Change

• babel-generator, babel-parser, babel-types
  • #17008 Rename TSTypeReference.typeParameters to typeArguments (@JLHwung)
  • #16952 [Babel 8] Remove TSModuleDeclaration.global (@liuxingbaoyu)
• babel-generator, babel-parser, babel-plugin-transform-flow-comments, babel-plugin-transform-typescript, babel-types
  • #16997 [babel 8] Rename superTypeParameters -> superTypeArguments (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-plugin-transform-typescript, babel-types
  • #16982 [Babel 8] Use TSQualifiedName for namespace X.Y {}'s name (@liuxingbaoyu)

🐛 Bug Fix

• Other
  • #17010 fix: build updated babel-type helpers (@JLHwung)
• babel-preset-react, babel-standalone
  • #16927 [react] Make development option default to the configured env (@nicolo-ribaudo)

🏠 Internal

• babel-cli, babel-helper-transform-fixture-test-runner
  • #17007 fix: migrate to dirent.parentPath (@JLHwung)

v8.0.0-alpha.13 (2024-10-25)

💥 Breaking Change

• 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-generator, babel-parser, babel-plugin-transform-typescript, babel-traverse, babel-types
  • #16731 Add TSClassImplements|TSInterfaceHeritage and rename TsExpressionWithTypeArguments in Babel 8 (@liuxingbaoyu)
• babel-generator, babel-parser, babel-plugin-proposal-pipeline-operator, babel-plugin-syntax-pipeline-operator, babel-standalone
  • #16801 [Babel 8] Remove minimal,smart option of Pipeline Operator (@liuxingbaoyu)
• babel-parser
  • #16813 [Flow] Drop support for annotations inside array patterns (@nicolo-ribaudo)
• babel-plugin-transform-class-static-block, babel-plugin-transform-destructuring, babel-plugin-transform-spread, babel-traverse
  • #16705 [Babel 8] Remove some Scope methods (@liuxingbaoyu)
• babel-generator, babel-parser, babel-plugin-proposal-import-wasm-source, babel-template, babel-types
  • #16770 Remove importAssertions parser plugin (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-standalone
  • #16808 Remove importReflection parser plugin (@nicolo-ribaudo)
• babel-generator, babel-traverse, babel-types
  • #16807 [Babel 8] Remove DecimalLiteral AST (@liuxingbaoyu)
• babel-generator, babel-parser, babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-standalone
  • #16741 [Babel 8] Remove decimal from parser (@liuxingbaoyu)
• babel-generator, babel-parser, babel-types
  • #16733 [Babel 8] Split typeParameter of TSMappedType (@liuxingbaoyu)
• babel-plugin-proposal-async-do-expressions, babel-traverse
  • #16655 Remove some NodePath methods (@liuxingbaoyu)

🚀 New Feature

• babel-parser, babel-plugin-syntax-flow, babel-preset-typescript
  • #16792 [Babel 8] Remove enums option of flow plugin (@liuxingbaoyu)

🐛 Bug Fix

• babel-core
  • #16925 Only parse # as comment in .babelignore at line start (@nicolo-ribaudo)
• babel-template, babel-types
  • #16830 fix: ObjectPattern used as id inside for-of (@coderaiser)
• babel-plugin-transform-async-generator-functions, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping
  • #16398 Refactor transform-block-scoped-function (@liuxingbaoyu)
• babel-helper-transform-fixture-test-runner, babel-node
  • #16706 [babel 8] Align @babel/node args parsing to Node.js (@nicolo-ribaudo)
• babel-parser
  • #16668 [Babel 8] Fix spelling of error code (@liuxingbaoyu)

💅 Polish

• babel-core
  • #16836 [Babel 8] fix: Throwing exceptions synchronously (@liuxingbaoyu)

🏠 Internal

• babel-generator, babel-helper-create-class-features-plugin, babel-helper-module-transforms, babel-plugin-proposal-destructuring-private, babel-plugin-transform-destructuring, babel-plugin-transform-modules-commonjs, babel-plugin-transform-object-rest-spread, babel-plugin-transform-parameters, babel-traverse, babel-types
  • #16817 Remove BABEL_TYPES_8_BREAKING flag and enable it by default (@liuxingbaoyu)
• babel-cli, babel-code-frame, babel-compat-data, babel-core, babel-generator, babel-helper-annotate-as-pure, babel-helper-builder-binary-assignment-operator-visitor, babel-helper-builder-react-jsx, babel-helper-check-duplicate-nodes, babel-helper-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-fixtures, babel-helper-import-to-platform-api, babel-helper-member-expression-to-functions, babel-helper-module-imports, babel-helper-module-transforms, babel-helper-optimise-call-expression, babel-helper-plugin-test-runner, babel-helper-plugin-utils, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-helper-simple-access, babel-helper-skip-transparent-expression-wrappers, babel-helper-string-parser, babel-helper-transform-fixture-test-runner, babel-helper-validator-identifier, babel-helper-validator-option, babel-helper-wrap-function, babel-helpers, babel-highlight, babel-node, babel-parser, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-bugfix-safari-class-field-initializer-scope, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-plugin-external-helpers, babel-plugin-proposal-async-do-expressions, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-plugin-proposal-explicit-resource-management, babel-plugin-proposal-export-default-from, babel-plugin-proposal-function-bind, babel-plugin-proposal-function-sent, babel-plugin-proposal-import-attributes-to-assertions, babel-plugin-proposal-import-defer, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-json-modules, babel-plugin-proposal-optional-chaining-assign, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-record-and-tuple, babel-plugin-proposal-regexp-modifiers, babel-plugin-proposal-throw-expressions, babel-plugin-syntax-async-do-expressions, babel-plugin-syntax-decimal, babel-plugin-syntax-decorators, babel-plugin-syntax-destructuring-private, babel-plugin-syntax-do-expressions, babel-plugin-syntax-explicit-resource-management, babel-plugin-syntax-export-default-from, babel-plugin-syntax-flow, babel-plugin-syntax-function-bind, babel-plugin-syntax-function-sent, babel-plugin-syntax-import-assertions, babel-plugin-syntax-import-attributes, babel-plugin-syntax-import-defer, babel-plugin-syntax-import-reflection, babel-plugin-syntax-import-source, babel-plugin-syntax-jsx, babel-plugin-syntax-module-blocks, babel-plugin-syntax-optional-chaining-assign, babel-plugin-syntax-partial-application, babel-plugin-syntax-pipeline-operator, babel-plugin-syntax-record-and-tuple, babel-plugin-syntax-throw-expressions, babel-plugin-syntax-typescript, babel-plugin-transform-arrow-functions, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-classes, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-dotall-regex, babel-plugin-transform-duplicate-keys, babel-plugin-transform-duplicate-named-capturing-groups-regex, babel-plugin-transform-dynamic-import, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-export-namespace-from, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-for-of, babel-plugin-transform-function-name, babel-plugin-transform-instanceof, babel-plugin-transform-jscript, babel-plugin-transform-json-strings, babel-plugin-transform-literals, babel-plugin-transform-logical-assignment-operators, babel-plugin-transform-member-expression-literals, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-new-target, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-numeric-separator, babel-plugin-transform-object-assign, babel-plugin-transform-object-rest-spread, babel-plugin-transform-object-set-prototype-of-to-assign, babel-plugin-transform-object-super, babel-plugin-transform-optional-catch-binding, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-property-literals, babel-plugin-transform-property-mutators, babel-plugin-transform-proto-to-assign, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-display-name, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-compat, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx-source, babel-plugin-transform-react-jsx, babel-plugin-transform-react-pure-annotations, babel-plugin-transform-regenerator, babel-plugin-transform-reserved-words, babel-plugin-transform-runtime, babel-plugin-transform-shorthand-properties, babel-plugin-transform-spread, babel-plugin-transform-sticky-regex, babel-plugin-transform-strict-mode, babel-plugin-transform-template-literals, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-plugin-transform-unicode-escapes, babel-plugin-transform-unicode-property-regex, babel-plugin-transform-unicode-regex, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow, babel-preset-react, babel-preset-typescript, babel-register, babel-runtime-corejs3, babel-runtime, babel-standalone, babel-template, babel-traverse, babel-types
  • #16800 [babel 8] Require Node.js ^18.20.0 || ^20.17.0 || >=22.8.0 (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-syntax-typescript, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-private-methods, babel-plugin-transform-unicode-sets-regex, babel-traverse
  • #16572 Clean all always enabled parser plugins (@liuxingbaoyu)

v8.0.0-alpha.12 (2024-07-26)

💥 Breaking Change

• babel-traverse
  • #16504 [babel 8] Remove methods starting with _ in @babel/traverse (@liuxingbaoyu)

v8.0.0-alpha.11 (2024-06-07)

💥 Breaking Change

• babel-core
  • #16561 [babel 8] Remove File.prototype.getModuleName (@nicolo-ribaudo)

v8.0.0-alpha.10 (2024-06-04)

🐛 Bug Fix

• babel-traverse, babel-types
  • #16544 Improve getBindingIdentifiers (@JLHwung)
• babel-cli, babel-node
  • #16548 fix Babel 8 commander import (@JLHwung)

v8.0.0-alpha.9 (2024-06-03)

💥 Breaking Change

• babel-parser, babel-traverse
  • #16521 [Babel 8] Remove extra.shorthand (@liuxingbaoyu)
• babel-generator, babel-parser, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-record-and-tuple, babel-plugin-syntax-record-and-tuple, babel-standalone, babel-traverse
  • #16458 Remove syntaxType option for record-and-tuple (parser&plugin) (@JLHwung)
• Every package
  • #16457 [babel 8] Require Node.js ^18.20.0 || ^20.10.0 || >=21.0.0 (@JLHwung)

🚀 New Feature

• Every package
  • #16416 [babel 8] Publish .d.ts files for every package (@nicolo-ribaudo)

🏠 Internal

• Every package
  • #16494 Only import types from declared dependencies (@nicolo-ribaudo)
• babel-cli, babel-node
  • #16517 [Babel 8] Bump commander to 12.1.0 (@JLHwung)
• babel-cli, babel-helper-transform-fixture-test-runner
  • #16459 [Babel 8] Use more native fs methods (@JLHwung)
• babel-cli
  • #16450 Bump glob to 10.3.12 (@JLHwung)

v8.0.0-alpha.8 (2024-04-04)

💥 Breaking Change

• babel-plugin-transform-runtime, babel-runtime-corejs3
  • #16347 Remove core-js and regenerator entrypoints from @babel/runtime-* (@nicolo-ribaudo)
• babel-plugin-transform-runtime
  • #16346 Remove ./helpers/esm exports from @babel/runtime and drop Node.js 13.0-13.1 (@nicolo-ribaudo)
• babel-plugin-transform-runtime, babel-plugin-transform-typeof-symbol, babel-runtime-corejs2
  • #16311 [babel 8] Cleanup plugin-transform-runtime options (@nicolo-ribaudo)

💅 Polish

• babel-plugin-transform-typescript
  • #16396 [babel 8] Turn const enums into const variables (@samualtnorman)

🏠 Internal

• babel-core
  • #16365 [babel 8] Remove import_ fallback (@nicolo-ribaudo)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs3, babel-runtime, babel-standalone
  • #16323 Allow separate helpers to be excluded in Babel 8 (@liuxingbaoyu)
• babel-helper-plugin-test-runner
  • #16330 Add missing "type": "module" to helper-plugin-test-runner (@nicolo-ribaudo)
• babel-compat-data, babel-plugin-transform-object-rest-spread, babel-preset-env
  • #16318 [babel 8] Fix @babel/compat-data package.json (@nicolo-ribaudo)

v8.0.0-alpha.7 (2024-02-28)

🏠 Internal

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #16256 Remove logic for deprecated decorator versions from Babel 8 (@JLHwung)
• babel-core, babel-helper-fixtures, babel-helper-plugin-utils, babel-helper-transform-fixture-test-runner, babel-parser, babel-plugin-transform-runtime, babel-preset-env, babel-standalone, babel-template, babel-traverse, babel-types
  • #16248 Use Object.hasOwn when available (@nicolo-ribaudo)
• babel-core, babel-plugin-transform-object-rest-spread
  • #16209 chore: Helper changes for Babel 8 (@liuxingbaoyu)

v8.0.0-alpha.6 (2024-01-26)

💅 Polish

• babel-register
  • #16005 Use @cspotcode/source-map-support in @babel/register (@liuxingbaoyu)

v8.0.0-alpha.5 (2023-12-11)

💥 Breaking Change

• babel-plugin-transform-runtime
  • #16141 [babel 8] Remove useESModules option (@nicolo-ribaudo)
  • #16063 [babel 8] Remove core-js@2 & regenerator from transform-runtime (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-preset-env
  • #16043 [babel 8] Remove loose and spec options from preset-env (@nicolo-ribaudo)
• babel-core, babel-generator, babel-types
  • #16126 [babel 8] Remove CodeGenerator from @babel/generator (@liuxingbaoyu)
• babel-parser
  • #16114 Breaking: parserOpts.createImportExpressions defaults to true (@JLHwung)
• babel-traverse, babel-types
  • #16057 [babel 8] Inline toSequenceExpression into @babel/traverse (@nicolo-ribaudo)
• babel-preset-env
  • #15989 [babel 8] Remove getModulesPluginNames (@nicolo-ribaudo)
• babel-core, babel-preset-env
  • #15838 [babel 8] Remove core-js 2 and regenerator from preset-env (@nicolo-ribaudo)

💅 Polish

• babel-helper-validator-option, babel-plugin-transform-object-rest-spread, babel-plugin-transform-runtime, babel-preset-env, babel-standalone
  • #16095 [babel 8] Enforce specifying proper core-js version (@liuxingbaoyu)

🏠 Internal

• babel-core, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-external-helpers, babel-plugin-proposal-async-do-expressions, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-plugin-proposal-duplicate-named-capturing-groups-regex, babel-plugin-proposal-explicit-resource-management, babel-plugin-proposal-export-default-from, babel-plugin-proposal-function-bind, babel-plugin-proposal-function-sent, babel-plugin-proposal-import-attributes-to-assertions, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-record-and-tuple, babel-plugin-proposal-regexp-modifiers, babel-plugin-proposal-throw-expressions, babel-plugin-syntax-async-do-expressions, babel-plugin-syntax-decimal, babel-plugin-syntax-decorators, babel-plugin-syntax-destructuring-private, babel-plugin-syntax-do-expressions, babel-plugin-syntax-explicit-resource-management, babel-plugin-syntax-export-default-from, babel-plugin-syntax-flow, babel-plugin-syntax-function-bind, babel-plugin-syntax-function-sent, babel-plugin-syntax-import-assertions, babel-plugin-syntax-import-attributes, babel-plugin-syntax-import-reflection, babel-plugin-syntax-jsx, babel-plugin-syntax-module-blocks, babel-plugin-syntax-partial-application, babel-plugin-syntax-pipeline-operator, babel-plugin-syntax-record-and-tuple, babel-plugin-syntax-throw-expressions, babel-plugin-syntax-typescript, babel-plugin-transform-arrow-functions, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-classes, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-dotall-regex, babel-plugin-transform-duplicate-keys, babel-plugin-transform-dynamic-import, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-export-namespace-from, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-for-of, babel-plugin-transform-function-name, babel-plugin-transform-instanceof, babel-plugin-transform-jscript, babel-plugin-transform-json-strings, babel-plugin-transform-literals, babel-plugin-transform-logical-assignment-operators, babel-plugin-transform-member-expression-literals, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-plugin-transform-new-target, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-numeric-separator, babel-plugin-transform-object-assign, babel-plugin-transform-object-rest-spread, babel-plugin-transform-object-set-prototype-of-to-assign, babel-plugin-transform-object-super, babel-plugin-transform-optional-catch-binding, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-property-literals, babel-plugin-transform-property-mutators, babel-plugin-transform-proto-to-assign, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-display-name, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-compat, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx-source, babel-plugin-transform-react-pure-annotations, babel-plugin-transform-regenerator, babel-plugin-transform-reserved-words, babel-plugin-transform-runtime, babel-plugin-transform-shorthand-properties, babel-plugin-transform-spread, babel-plugin-transform-sticky-regex, babel-plugin-transform-strict-mode, babel-plugin-transform-template-literals, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-plugin-transform-unicode-escapes, babel-plugin-transform-unicode-property-regex, babel-plugin-transform-unicode-regex, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow, babel-preset-react, babel-preset-typescript
  • #15955 Require exact Babel 8 version in assertVersion (@nicolo-ribaudo)

v8.0.0-alpha.4 (2023-10-11)

This release does not include any changes specific to Babel 8, but it ports all the recent Babel 7 commits to Babel 8.

v8.0.0-alpha.3 (2023-09-26)

💥 Breaking Change

• babel-node
  • #15956 [babel 8] Remove -d/-gc babel-node aliases (@nicolo-ribaudo)
• babel-core
  • #15869 Disallow sync createConfigItem, loadPartialConfig, loadOptions usage (@JLHwung)

🏠 Internal

• babel-code-frame, babel-highlight
  • #15792 [babel 8] Use ESM-based chalk@5 (@nicolo-ribaudo)

v8.0.0-alpha.2 (2023-08-09)

🐛 Bug Fix

• babel-core, babel-traverse
  • #15759 [babel 8] Reland "Use NodePath#hub as part of the paths cache key" (@nicolo-ribaudo)

💅 Polish

• babel-preset-typescript
  • #15847 Provide better error message when allowDeclareFields is enabled (@JLHwung)

🏠 Internal

• babel-helper-create-class-features-plugin, babel-plugin-transform-async-generator-functions, babel-plugin-transform-class-static-block, babel-plugin-transform-dynamic-import, babel-plugin-transform-export-namespace-from, babel-plugin-transform-json-strings, babel-plugin-transform-logical-assignment-operators, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-numeric-separator, babel-plugin-transform-object-rest-spread, babel-plugin-transform-optional-catch-binding, babel-plugin-transform-optional-chaining, babel-plugin-transform-private-property-in-object
  • #15823 Do not use syntax plugins for syntax enabled by default (@nicolo-ribaudo)
• babel-code-frame, babel-highlight
  • #15814 [babel 8] Use chalk@4 (@nicolo-ribaudo)

v8.0.0-alpha.0 (2023-07-20)

👓 Spec Compliance

• babel-parser
  • #12451 [babel 8] Report a SyntaxError for } and > in JSX text (@nicolo-ribaudo)
  • #12447 [babel 8] Disallow sequence expressions in JSX expression containers (@nicolo-ribaudo)

💥 Breaking Change

• Other
  • #15763 [babel 8] Bump eslint-parser/plugin eslint requirements (@JLHwung)
  • #13921 [babel 8] Align allow* parser options with ESLint behavior (@nicolo-ribaudo)
• All packages
  • #15585 [babel 8] Require Node.js ^16.20.0 || ^18.16.0 || >=20.0.0 (@nicolo-ribaudo)
  • #14013 [babel 8] Add "exports" to every package (@nicolo-ribaudo)
• babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties
  • #15676 [babel 8] Only support legacy and 2023-05 decorators (@nicolo-ribaudo)
• babel-core, babel-helper-create-class-features-plugin, babel-plugin-transform-arrow-functions, babel-plugin-transform-computed-properties, babel-plugin-transform-for-of, babel-plugin-transform-regenerator, babel-plugin-transform-unicode-escapes, babel-preset-env, babel-traverse, babel-types
  • #15576 [babel 8] Other Babel 8 misc changes (@nicolo-ribaudo)
• babel-core, babel-helper-builder-binary-assignment-operator-visitor, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-environment-visitor, babel-helper-member-expression-to-functions, babel-helper-module-transforms, babel-helper-plugin-utils, babel-helper-replace-supers, babel-helper-simple-access, babel-helper-string-parser, babel-helper-transform-fixture-test-runner, babel-helpers, babel-plugin-transform-modules-commonjs, babel-preset-env
  • #15550 More misc Babel 8 little changes (@nicolo-ribaudo)
• babel-cli, babel-compat-data, babel-core, babel-helper-create-class-features-plugin, babel-helper-environment-visitor, babel-helper-replace-supers, babel-helpers, babel-parser, babel-plugin-transform-for-of, babel-plugin-transform-react-jsx, babel-preset-env, babel-traverse, babel-types
  • #15068 Babel 8 misc changes (@JLHwung)
• babel-types
  • #15527 [babel 8] Remove builders present only for backwards-compatibility (@nicolo-ribaudo)
  • #14464 [babel 8] Remove selfClosing from jsxElement builder (@wjw99830)
• babel-core, babel-plugin-syntax-flow, babel-plugin-syntax-jsx, babel-plugin-syntax-typescript, babel-plugin-transform-parameters, babel-plugin-transform-react-jsx-development, babel-plugin-transform-spread, babel-plugin-transform-typescript, babel-preset-flow, babel-preset-typescript, babel-standalone
  • #14955 [babel 8] Better file ext handling for TS and Flow presets (@nicolo-ribaudo)
• babel-traverse
  • #15288 [babel 8] Remove block argument from Scope#rename (@nicolo-ribaudo)
• babel-generator, babel-helper-compilation-targets, babel-preset-env, babel-preset-flow, babel-types
  • #14179 Bundle most packages in Babel 8 (@JLHwung)
• babel-generator, babel-helper-builder-binary-assignment-operator-visitor, babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-helper-skip-transparent-expression-wrappers, babel-plugin-proposal-function-bind, babel-plugin-proposal-logical-assignment-operators, babel-plugin-proposal-optional-chaining, babel-plugin-proposal-partial-application, babel-plugin-transform-proto-to-assign, babel-plugin-transform-spread, babel-traverse, babel-types
  • #14750 Remove Super from Expression alias (@JLHwung)
• babel-core, babel-generator, babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-syntax-decorators, babel-plugin-transform-function-name, babel-plugin-transform-typescript, babel-standalone
  • #12712 [babel 8] Remove support for the 2018-09 decorators proposal (@nicolo-ribaudo)
• babel-core, babel-helper-module-imports, babel-helper-transform-fixture-test-runner, babel-node, babel-plugin-proposal-class-static-block, babel-plugin-syntax-decorators, babel-plugin-transform-modules-commonjs, babel-plugin-transform-runtime, babel-standalone
  • #12695 [babel 8] Disallow synchronous usage of babel.* callback methods (@JLHwung)
• babel-generator, babel-types
  • #14465 [babel 8] ObjectTypeAnnotation fields must always be arrays (@danez)
  • #12361 [babel 8] Remove the Noop node type (@sidntrivedi012)
• babel-generator, babel-parser, babel-types
  • #13709 [babel 8] fix properties name for function-like TS nodes (@sosukesuzuki)
  • #12829 [babel 8] Use an identifier for TSTypeParameter.name (@fedeci)
• babel-node, babel-register
  • #14025 [babel 8] Move @babel/register transform to a separate worker (@nicolo-ribaudo)
• babel-parser
  • #13919 Improve template tokenizing (@JLHwung)
  • #13752 [babel 8] Materialize ESTree's classFeatures option (@nicolo-ribaudo)
• babel-plugin-transform-react-constant-elements, babel-preset-env
  • #13866 [babel 8] Enable preset-env bugfixes by default (@JLHwung)
• babel-core
  • #13199 [babel 8] Move ESLint parsing to a Worker (@nicolo-ribaudo)
• babel-generator, babel-parser
  • #13308 [Babel 8]: remove module attributes parser/generator support (@JLHwung)
  • #12608 [babel 8] Don't create TSParenthesizedType nodes by default (@JLHwung)
• babel-plugin-transform-block-scoping, babel-traverse
  • #13291 [babel 8] Do not skip requeued paths (@JLHwung)
• babel-cli, babel-core, babel-helper-module-transforms, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd
  • #12724 [babel 8] Remove module-specific options from @babel/core (@nicolo-ribaudo)
• babel-preset-react
  • #12741 [babel 8] Type checking preset-react options (@JLHwung)
• babel-preset-flow
  • #12751 [babel 8] type checking preset-flow options (@JLHwung)
• babel-core, babel-helper-compilation-targets, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-proposal-object-rest-spread, babel-plugin-transform-classes, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-function-name, babel-plugin-transform-modules-commonjs, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-standalone
  • #12989 breaking: fallback targets to "defaults, not ie 11" (@JLHwung)
• babel-plugin-proposal-dynamic-import, babel-plugin-transform-modules-systemjs
  • #12700 Require @babel/plugin-proposal-dynamic-import when transforming import() to SystemJS (@JLHwung)
• babel-generator, babel-plugin-transform-react-jsx, babel-plugin-transform-template-literals, babel-plugin-transform-unicode-escapes
  • #12675 [babel 8] Output minimal strings by default (@JLHwung)
• babel-code-frame, babel-highlight
  • #12660 [babel 8] Improve syntax highlighting (@nicolo-ribaudo)
• babel-node, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx, babel-plugin-transform-regenerator, babel-preset-react, babel-preset-typescript, babel-standalone
  • #12630 [babel 8] Use the JSX automatic runtime by default (@nicolo-ribaudo)
• babel-helper-builder-react-jsx, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-preset-react
  • #12593 [babel 8] Remove useSpread and useBuiltIns jsx options (@nicolo-ribaudo)
• babel-preset-env
  • #12594 [babel 8] Remove uglify target support in preset-env (@nicolo-ribaudo)
• babel-plugin-proposal-class-properties, babel-plugin-transform-typescript, babel-preset-typescript
  • #12461 [babel 8] Enable allowDeclareFields option by default with TS (@nicolo-ribaudo)
• babel-preset-typescript
  • #12460 Type checking preset-typescript options (@JLHwung)
• babel-generator
  • #12477 [babel 8] Remove the jsonCompatibleStrings option (@nicolo-ribaudo)
• babel-helper-fixtures, babel-plugin-transform-flow-strip-types
  • #12457 [babel 8] Enable allowDeclareFields option by default w/ Flow (@nicolo-ribaudo)

🚀 New Feature

• babel-helper-compilation-targets
  • #15551 use browserslist's defaults as default targets (@JLHwung)

🐛 Bug Fix

• babel-helper-fixtures, babel-preset-typescript
  • #15562 [Babel 8] fix ignoreExtensions behaviour (@JLHwung)

🏠 Internal

• babel-plugin-transform-runtime
  • #15528 [babel 8] regeneratorRuntime helper is always available (@nicolo-ribaudo)
• babel-core
  • #15526 [babel 8] Remove old error plugin mappings for default syntax (@nicolo-ribaudo)
• Other
  • #14949 Fix prepublish build of Babel 8 with ESM (@nicolo-ribaudo)
  • #14872 Use the built-in class fields and private methods rules in ESLint 8 (@JLHwung)
• babel-plugin-transform-modules-commonjs, babel-plugin-transform-runtime
  • #14120 [babel 8] Remove @babel/runtime@<=7.13.0 compat check (@nicolo-ribaudo)
• babel-cli
  • #14119 [babel 8] Remove @nicolo-ribaudo/chokidar-2 fallback (@nicolo-ribaudo)
• babel-cli, babel-node, babel-plugin-transform-runtime, babel-register
  • #13828 [babel 8] Remove make-dir polyfill for fs.mkdirSync (@nicolo-ribaudo)
  • #12458 Use native Node.js functions when available (@nicolo-ribaudo)
• babel-parser
  • #13768 Store token type as number (@JLHwung)
  • #13294 fix(parser): [Babel8] Align error codes between Flow and TypeScript (@sosukesuzuki)
• babel-plugin-proposal-partial-application, babel-types
  • #13407 [Babel 8] Remove optional field from MemberExpression (@danez)
• babel-core, babel-helper-transform-fixture-test-runner, babel-register
  • #12677 [babel 8] Replace lodash/escapeRegExp with escape-string-regexp (@hzoo)
• babel-cli, babel-plugin-transform-classes, babel-register, babel-traverse
  • #12656 [babel 8] Update globals, find-cache-dir and slash (@nicolo-ribaudo)
• babel-plugin-syntax-typescript
  • #12607 chore: do not push objectRestSpread parser option in Babel 8 (@JLHwung)

---

See CHANGELOG - v7.15.0 to v7.28.5 for v7.15.0 to v7.28.5 changes (the last common release between the v8 and v7 release lines was v7.28.5).