Update dependency @babel/preset-env to v7.26.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@babel/preset-env (source)	7.5.4 -> 7.26.9

---

Release Notes

babel/babel (@​babel/preset-env)

v7.26.9

Compare Source

:bug: Bug Fix

• babel-types
  • #​17103 fix: Definition for TSPropertySignature.kind (@​liuxingbaoyu)
• babel-generator, babel-types
  • #​17062 Print TypeScript optional/definite in ClassPrivateProperty (@​jamiebuilds-signal)

:house: Internal

• babel-types
  • #​17130 Use .ts files with explicit reexports to solve name conflicts (@​nicolo-ribaudo)
• babel-core
  • #​17127 Do not depend on @types/gensync in Babel 7 (@​nicolo-ribaudo)

v7.26.8

Compare Source

v7.26.8 (2025-02-08)

:house: Internal

• babel-preset-env
  • #​17097 Update dependency babel-plugin-polyfill-corejs3 to ^0.11.0

v7.26.7

Compare Source

:bug: Bug Fix

• babel-helpers, babel-preset-env, babel-runtime-corejs3
  • #​17086 Make "object without properties" helpers ES6-compatible (@​tquetano-netflix)
• babel-plugin-transform-typeof-symbol
  • #​17085 fix: Correctly handle typeof in arrow functions (@​liuxingbaoyu)
• babel-parser
  • #​17079 Respect ranges option in estree method value (@​JLHwung)
• babel-core
  • #​17052 Do not try to parse .ts configs as JSON if natively supported (@​nicolo-ribaudo)
• babel-plugin-transform-typescript
  • #​17050 fix: correctly resolve references to non-constant enum members (@​branchseer)
• babel-plugin-transform-typescript, babel-traverse, babel-types
  • #​17025 fix: Remove type-only import x = y.z (@​liuxingbaoyu)

v7.26.0

Compare Source

:rocket: 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: 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)

:nail_care: Polish

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

:house: 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)

:running_woman: Performance

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

v7.25.9

Compare Source

:bug: 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)

:house: Internal

• babel-helper-transform-fixture-test-runner
  • #​16914 remove test options flaky (@​JLHwung)

:running_woman: Performance

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

v7.25.8

Compare Source

:bug: Bug Fix

• babel-core
  • #​16888 Restore public API of resolvePlugin/resolvePreset (@​nicolo-ribaudo)

:house: Internal

• babel-parser, babel-plugin-proposal-async-do-expressions, 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-defer, babel-plugin-proposal-partial-application, babel-plugin-proposal-throw-expressions, 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-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, babel-preset-env
  • #​16824 Inline one-line syntax plugins (@​nicolo-ribaudo)

v7.25.7

Compare Source

:bug: 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)

:nail_care: Polish

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

:house: 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)

:running_woman: 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)

v7.25.4

Compare Source

:bug: Bug Fix

• babel-traverse
  • #​16756 fix: Skip computed key when renaming (@​liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #​16755 fix: Decorator 2018-09 may throw an exception (@​liuxingbaoyu)
• babel-types
  • #​16710 Visit AST fields nodes according to their syntactical order (@​nicolo-ribaudo)
• babel-generator
  • #​16709 Print semicolon after TS export namespace as A (@​nicolo-ribaudo)

:nail_care: Polish

• babel-generator, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-optional-chaining, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-typescript, babel-runtime-corejs2, babel-runtime, babel-traverse
  • #​16722 Avoid unnecessary parens around sequence expressions (@​nicolo-ribaudo)
• babel-generator, babel-plugin-transform-class-properties
  • #​16714 Avoid unnecessary parens around exported arrow functions (@​nicolo-ribaudo)
• babel-generator, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-transform-object-rest-spread
  • #​16712 Avoid printing unnecessary parens around object destructuring (@​nicolo-ribaudo)

:microscope: Output optimization

• babel-generator
  • #​16740 Avoid extra spaces between comments/regexps in compact mode (@​nicolo-ribaudo)

v7.25.3

Compare Source

:bug: Bug Fix

• babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-traverse
  • #​16699 Avoid validating visitors produced by traverse.visitors.merge (@​nicolo-ribaudo)

:house: Internal

• babel-parser
  • #​16688 Add @babel/types as a dependency of @babel/parser (@​nicolo-ribaudo)

v7.25.2

Compare Source

:bug: Bug Fix

• babel-core, babel-traverse
  • #​16695 Ensure that requeueComputedKeyAndDecorators is available (@​nicolo-ribaudo)

v7.25.0

Compare Source

:eyeglasses: 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)

:rocket: 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: 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)

:house: 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)

:running_woman: Performance

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

:microscope: 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)

v7.24.8

Compare Source

:eyeglasses: Spec Compliance

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

:bug: 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)

:nail_care: Polish

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

v7.24.7

Compare Source

:bug: 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)

:house: Internal

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

v7.24.6

Compare Source

:bug: 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)

:house: 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)

v7.24.5

Compare Source

:bug: 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)

:nail_care: Polish

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

:house: 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)

:running_woman: Performance

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

v7.24.4

Compare Source

:eyeglasses: Spec Compliance

• babel-parser
  • #​16403 Forbid initializerless using (@​JLHwung)
• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3
  • #​16388 Ensure decorators are callable (@​JLHwung)

:bug: Bug Fix

• babel-generator
  • #​16402 fix: Correctly prints { [key in Bar]? } (@​liuxingbaoyu)
  • #​16394 fix: Correctly generate TSMappedType (@​liuxingbaoyu)
• babel-compat-data, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-preset-env
  • #​16390 Create bugfix plugin for classes in computed keys in Firefox (@​nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • #​16387 fix: support mutated outer decorated class binding (@​JLHwung)
  • #​16385 fix: Decorators when super() exists and protoInit is not needed (@​liuxingbaoyu)
• babel-plugin-transform-block-scoping
  • #​16384 fix: Transform scoping for for X in loop (@​liuxingbaoyu)
  • #​16368 fix: Capture let when the for body is not a block (@​liuxingbaoyu)
• babel-core, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping
  • #​16363 Fix incorrect function hoisting in some case statements (@​luiscubal)

v7.24.3

Compare Source

:bug: Bug Fix

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

v7.24.1

Compare Source

:bug: 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)

:memo: Documentation

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

:house: 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-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-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)
• babel-helper-create-class-features-plugin, 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-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-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-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
  • #​16332 Test Babel 7 plugins compatibility with Babel 8 core (@​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)

:microscope: 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)

v7.24.0

Compare Source

:rocket: 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: 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)

:nail_care: Polish

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

:house: Internal

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

:microscope: 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)

v7.23.9

Compare Source

:bug: Bug Fix

• babel-helper-transform-fixture-test-runner, babel-plugin-transform-function-name, babel-plugin-transform-modules-systemjs, babel-preset-env
  • #​16225 fix: systemjs re-traverses helpers (@​liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
  • [#​16226](htt

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