Update babel monorepo

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@babel/cli (source)	7.22.15 -> 7.28.3
@babel/core (source)	7.22.20 -> 7.28.5
@babel/preset-env (source)	7.22.20 -> 7.28.5

---

Release Notes

babel/babel (@​babel/cli)

v7.28.3

Compare Source

👓 Spec Compliance

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-transform-class-static-block, babel-preset-env
  • #​17443 [static blocks] Do not inject new static fields after static code (@​nicolo-ribaudo)

🐛 Bug Fix

• babel-parser
  • #​17465 fix(parser/typescript): parse import("./a", {with:{},}) (@​easrng)
  • #​17478 fix(parser): stop subscript parsing on async arrow (@​JLHwung)

💅 Polish

• babel-plugin-transform-regenerator, babel-plugin-transform-runtime
  • #​17363 Do not save last yield in call in temp var (@​nicolo-ribaudo)

📝 Documentation

• #​17448 move eslint-{parser,plugin} docs to the website (@​JLHwung)

🏠 Internal

• #​17454 Enable type checking for scripts and babel-worker.cjs (@​JLHwung)

🔬 Output optimization

• babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions
  • #​17444 Optimize do expression output (@​JLHwung)

v7.28.0

Compare Source

🚀 New Feature

• babel-node
  • #​17147 Support top level await in node repl (@​liuxingbaoyu)
• babel-types
  • #​17258 feat(matchesPattern): support super/private/meta (@​JLHwung)
• babel-compat-data, babel-preset-env
  • #​17355 Add explicit resource management to preset-env (@​JLHwung)
• babel-core, babel-parser
  • #​17390 Support sourceType: "commonjs" (@​JLHwung)
• babel-generator, babel-parser
  • #​17346 Materialize explicitResourceManagement parser plugin (@​JLHwung)
• 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-generator, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-discard-binding, babel-plugin-transform-destructuring, babel-plugin-transform-explicit-resource-management, babel-plugin-transform-react-display-name, babel-types
  • #​17277 Transform discard binding (@​JLHwung)
• babel-generator, babel-parser, babel-plugin-proposal-destructuring-private, babel-plugin-transform-block-scoping, babel-plugin-transform-object-rest-spread, babel-plugin-transform-typescript, babel-traverse, babel-types
  • #​17163 Parse discard binding (@​JLHwung)

🐛 Bug Fix

• babel-helper-globals, babel-plugin-transform-classes, babel-traverse
  • #​17297 Create babel-helper-globals (@​JLHwung)
• babel-types
  • #​17009 feature: TSTypeOperator: keyof (#​16799) (@​coderaiser)

🏠 Internal

• babel-compat-data, babel-plugin-proposal-decorators, babel-plugin-transform-async-generator-functions, babel-plugin-transform-json-modules, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs3
  • #​17403 Update babel-polyfill packages (@​nicolo-ribaudo)

v7.27.2

Compare Source

🐛 Bug Fix

• babel-parser
  • #​17289 fix: @babel/parser/bin/index.js contains node: protocol require (@​liuxingbaoyu)
  • #​17291 fix: Private class method not found when TS and estree (@​liuxingbaoyu)
• babel-plugin-transform-object-rest-spread
  • #​17281 Fix: improve object rest handling in array pattern (@​JLHwung)
• babel-plugin-transform-modules-commonjs, babel-template
  • #​17284 fix(babel-template): Properly handle empty string replacements (@​magic-akari)

🏃‍♀️ Performance

• babel-cli
  • #​17285 Enable Node compile cache for @babel/cli (@​JLHwung)

v7.27.1

Compare Source

👓 Spec Compliance

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

🐛 Bug Fix

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

💅 Polish

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

🏠 Internal

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​17263 Remove unused regenerator-runtime dep in @babel/runtime (@​nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #​17256 Tune plugin compat data (@​JLHwung)
• babel-compat-data, babel-standalone
  • #​17236 migrate babel-compat-data build script to mjs (@​JLHwung)
• Other
  • #​17232 Bump typescript-eslint to 8.29.1 (@​JLHwung)
  • #​17219 test: add basic typescript-eslint integration tests (@​JLHwung)
  • #​17205 Inline regenerator in the relevant packages (@​nicolo-ribaudo)
• babel-register
  • #​16844 Migrate @babel/register to cts (@​liuxingbaoyu)
• babel-cli, babel-compat-data, babel-core, babel-generator, babel-helper-compilation-targets, babel-helper-fixtures, babel-helper-module-imports, babel-helper-module-transforms, babel-helper-plugin-test-runner, babel-helper-transform-fixture-test-runner, babel-helpers, babel-node, babel-parser, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-plugin-transform-react-display-name, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-preset-env, babel-register, babel-standalone, babel-types
  • #​17207 Enforce node protocol import (@​JLHwung)
• babel-plugin-transform-regenerator
  • #​17205 Inline regenerator in the relevant packages (@​nicolo-ribaudo)
  • #​17205 Inline regenerator in the relevant packages (@​nicolo-ribaudo)
• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-regenerator, babel-preset-env, babel-runtime-corejs3
  • #​17205 Inline regenerator in the relevant packages (@​nicolo-ribaudo)
• babel-helpers, babel-plugin-transform-regenerator
  • #​17205 Inline regenerator in the relevant packages (@​nicolo-ribaudo)
  • #​17205 Inline regenerator in the relevant packages (@​nicolo-ribaudo)
• babel-helpers
  • #​17205 Inline regenerator in the relevant packages (@​nicolo-ribaudo)

🔬 Output optimization

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

v7.27.0

Compare Source

👓 Spec Compliance

• babel-generator, babel-parser
  • #​16977 Default importAttributesKeyword to with (@​JLHwung)

🚀 New Feature

• babel-helper-create-class-features-plugin, babel-traverse, babel-types
  • #​17169 Allow traverseFast to exit early (@​liuxingbaoyu)
• babel-parser, babel-types
  • #​17110 Add ImportAttributes to Standardized and move its parser test fixtures (@​JLHwung)
• babel-generator
  • #​17100 fix(babel-generator): add named export of generate function (@​vovkasm)
• babel-parser, babel-template
  • #​17149 Add allowYieldOutsideFunction to parser (@​liuxingbaoyu)
• babel-plugin-transform-typescript, babel-traverse
  • #​17102 feat: Add upToScope parameter to hasBinding (@​liuxingbaoyu)
• babel-parser
  • #​17082 Support ESTree AccessorProperty (@​JLHwung)
• babel-types
  • #​17162 feat(babel-types): Add support for BigInt literal conversion in valueToNode (@​ishchhabra)

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties
  • #​16816 fix: Class reference in type throws error (@​liuxingbaoyu)
• babel-traverse
  • #​17170 fix: Reset child scopes when scope.crawl() (@​liuxingbaoyu)
• babel-helpers, babel-preset-typescript, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​17118 Fix: align behaviour to tsc rewriteRelativeImportExtensions (@​JLHwung)
• babel-cli
  • #​17182 fix: @babel/cli generates duplicate inline source maps (@​liuxingbaoyu)
• babel-plugin-transform-named-capturing-groups-regex, babel-types
  • #​17175 Generate computed proto key (@​JLHwung)

🏃‍♀️ Performance

• babel-types
  • #​16870 perf: Improve builders of @babel/types (@​liuxingbaoyu)
• babel-helper-create-regexp-features-plugin
  • #​17176 fix: improve duplicate named groups check (@​JLHwung)

v7.26.4

Compare Source

↩️ Revert

• babel-traverse
  • #​17005 Revert "perf: Improve scope information collection performance" (@​JLHwung)

v7.25.9

Compare Source

🐛 Bug Fix

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

🏠 Internal

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

🏃‍♀️ Performance

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

v7.25.7

Compare Source

🐛 Bug Fix

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

💅 Polish

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

🏠 Internal

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

🏃‍♀️ Performance

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

v7.25.6

Compare Source

🐛 Bug Fix

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

💅 Polish

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

🏠 Internal

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

v7.24.8

Compare Source

👓 Spec Compliance

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

🐛 Bug Fix

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

💅 Polish

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

v7.24.7

Compare Source

🐛 Bug Fix

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

🏠 Internal

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

v7.24.6

Compare Source

🐛 Bug Fix

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

🏠 Internal

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

v7.24.5

Compare Source

🐛 Bug Fix

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

💅 Polish

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

🏠 Internal

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

🏃‍♀️ Performance

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

v7.24.1

Compare Source

🐛 Bug Fix

• babel-generator
  • #​16648 Fix parens detection for object&function in as/satisfies (@​nicolo-ribaudo)

v7.23.9

Compare Source

🐛 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 Improve decorated private method check (@​JLHwung)
• babel-plugin-proposal-decorators, babel-plugin-transform-async-generator-functions, babel-plugin-transform-runtime, babel-preset-env
  • #​16224 Properly sort core-js@3 imports (@​nicolo-ribaudo)
• babel-traverse
  • #​15383 fix: Don't throw in getTypeAnnotation when using TS+inference (@​liuxingbaoyu)
• Other
  • #​16210 [eslint] Fix no-use-before-define for class ref in fields (@​nicolo-ribaudo)

🏠 Internal

• babel-core, babel-parser, babel-template
  • #​16222 Migrate eslint-parser to cts (@​liuxingbaoyu)
• babel-types
  • #​16213 Remove @babel/types props that are not produced by the parser (@​liuxingbaoyu)

🏃‍♀️ Performance

• babel-parser
  • #​16072 perf: Improve parser performance for typescript (@​liuxingbaoyu)

🔬 Output optimization

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-new-target, babel-plugin-transform-parameters, babel-plugin-transform-private-methods, babel-preset-env
  • #​16218 Improve temporary variables for decorators (@​liuxingbaoyu)
• babel-helpers, babel-plugin-proposal-explicit-resource-management, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​15959 Improve output of using (@​liuxingbaoyu)

v7.23.4

Compare Source

🐛 Bug Fix

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

v7.23.0

Compare Source

🚀 New Feature

• babel-plugin-proposal-import-wasm-source, babel-plugin-syntax-import-source, babel-plugin-transform-dynamic-import
  • #​15870 Support transforming import source for wasm (@​nicolo-ribaudo)
• babel-helper-module-transforms, babel-helpers, babel-plugin-proposal-import-defer, babel-plugin-syntax-import-defer, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone
  • #​15878 Implement import defer proposal transform support (@​nicolo-ribaudo)
• babel-generator, babel-parser, babel-types
  • #​15845 Implement import defer parsing support (@​nicolo-ribaudo)
  • #​15829 Add parsing support for the "source phase imports" proposal (@​nicolo-ribaudo)
• babel-generator, babel-helper-module-transforms, babel-parser, babel-plugin-transform-dynamic-import, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-traverse, babel-types
  • #​15682 Add createImportExpressions parser option (@​JLHwung)
• babel-standalone
  • #​15671 Pass through nonce to the transformed script element (@​JLHwung)
• babel-helper-function-name, babel-helper-member-expression-to-functions, babel-helpers, babel-parser, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-optional-chaining-assign, babel-plugin-syntax-optional-chaining-assign, babel-plugin-transform-destructuring, babel-plugin-transform-optional-chaining, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone, babel-types
  • #​15751 Add support for optional chain in assignments (@​nicolo-ribaudo)
• babel-helpers, babel-plugin-proposal-decorators
  • #​15895 Implement the "decorator metadata" proposal (@​nicolo-ribaudo)
• babel-traverse, babel-types
  • #​15893 Add t.buildUndefinedNode (@​liuxingbaoyu)
• babel-preset-typescript
  • #​15913 Add rewriteImportExtensions option to TS preset (@​nicolo-ribaudo)
• babel-parser
  • #​15896 Allow TS tuples to have both labeled and unlabeled elements (@​yukukotani)

🐛 Bug Fix

• babel-plugin-transform-block-scoping
  • #​15962 fix: transform-block-scoping captures the variables of the method in the loop (@​liuxingbaoyu)

💅 Polish

• babel-traverse
  • #​15797 Expand evaluation of global built-ins in @babel/traverse (@​lorenzoferre)
• babel-plugin-proposal-explicit-resource-management
  • #​15985 Improve source maps for blocks with using declarations (@​nicolo-ribaudo)

🔬 Output optimization

• babel-core, babel-helper-module-transforms, babel-plugin-transform-async-to-generator, babel-plugin-transform-classes, babel-plugin-transform-dynamic-import, babel-plugin-transform-function-name, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-inline-elements, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
  • #​15984 Inline exports.XXX = update in simple variable declarations (@​nicolo-ribaudo)

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