CHANGELOG-v8.md

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.

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)