⬆️ Update babel monorepo to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@babel/eslint-parser (source)	7.25.9 → 8.0.5
@babel/plugin-transform-regenerator (source)	7.25.9 → 8.0.5
@babel/preset-env (source)	7.26.0 → 8.0.5

---

Release Notes

babel/babel (@​babel/eslint-parser)

v8.0.5

Compare Source

👓 Spec Compliance

• babel-parser
  • #​18218 fix(parser): do not form html entity for invalid codepoint (@​JLHwung)

🐛 Bug Fix

• babel-parser
  • #​18215 fix(parser): remove non-decimal prefix from bigint (@​JLHwung)
  • #​18063 Disallow new import prop access (@​JLHwung)
• babel-plugin-transform-destructuring
  • #​18214 fix: only collapse the empty-object check when it targets the declared binding (@​Kjubikstronk)
• babel-plugin-transform-typescript
  • #​18190 fix(ts): improve variable handling in namespace (@​JLHwung)
  • #​18207 [ts] Allow merging enum into a namespace (@​nicolo-ribaudo)
• babel-node
  • #​18217 Fix import path for babel-node.js (@​drubetti)
• babel-plugin-bugfix-safari-rest-destructuring-rhs-array
  • #​18213 fix(bugfix): bound check before array access (@​JLHwung)
• babel-traverse
  • #​18183 fix(remove): unwrap single sequence expression (@​JLHwung)
  • #​18153 Handle null in getAll{Prev,Next}Siblings (@​JLHwung)
• babel-plugin-transform-block-scoping
  • #​18194 fix: improve for loop closure environment check (@​JLHwung)
  • #​18193 fix: assign closure body after handling return (@​JLHwung)
  • #​18088 Fix initialization of nested for loop head declarations (@​journey-ad)
• babel-generator
  • #​18202 fix(generator): keep parens for ?. chain in tag (@​JLHwung)
• babel-register
  • #​18137 fix(babel-register): preserve app-managed graceful shutdown (@​jibin7jose)
• Other
  • #​18140 chore: fix @​babel/eslint-plugin peer deps (@​JLHwung)
• babel-cli, babel-helper-transform-fixture-test-runner, babel-register
  • #​18131 fix(register): do not inherit parent execArgv (@​JLHwung)
• babel-standalone
  • #​18095 Add types for @babel/standalone (@​liuxingbaoyu)

📝 Documentation

• #​18187 Add AI policy (@​nicolo-ribaudo)

🏠 Internal

• babel-cli, babel-core, babel-helper-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-fixtures, babel-preset-env
  • #​18145 refactor: replace semver with verkit (@​sxzz)
• babel-node
  • #​18177 Update node flags list (@​nicolo-ribaudo)
• babel-types
  • #​18103 Simplify AST validators (@​fisker)

🏃‍♀️ Performance

• babel-parser
  • #​18176 perf: Improve @babel/parser (@​liuxingbaoyu)

v8.0.1

Compare Source

💥 Breaking Change

• babel-core, babel-plugin-transform-object-rest-spread, babel-plugin-transform-runtime, babel-preset-env, babel-standalone
  • #​18079 Actually remove preset-env's useBuiltIns (@​nicolo-ribaudo)

v8.0.0

Compare Source

👓 Spec Compliance

• babel-core
  • #​18039 perf: Only extract source map comments at the end of the file (@​liuxingbaoyu)

💥 Breaking Change

• babel-cli, babel-node, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-modules-commonjs, babel-plugin-transform-object-rest-spread, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-regenerator, babel-preset-env, babel-register
  • #​18069 Fallback to assuming ESM support with modules: auto (@​nicolo-ribaudo)
• babel-plugin-transform-runtime, babel-runtime-corejs3, babel-runtime
  • #​18036 Remove corejs exports for @babe/runtime-corejs3 (@​liuxingbaoyu)
• babel-parser
  • #​18034 Remove locations: "packed" (@​liuxingbaoyu)

🐛 Bug Fix

• babel-generator
  • #​18046 fix(generator): improve new callee parens check (@​JLHwung)
• babel-plugin-transform-modules-systemjs
  • #​18032 fix(systemjs): support proto as an export name (@​JLHwung)

📝 Documentation

• #​18070 Add EOL date for Babel 7 (end of June 2027) to SECURITY.md (@​nicolo-ribaudo)

🏠 Internal

• #​18018 ci: enforce yarn integrity (@​JLHwung)

🏃‍♀️ Performance

• babel-core
  • #​18039 perf: Only extract source map comments at the end of the file (@​liuxingbaoyu)

v7.29.7

Compare Source

v7.29.7 (2026-05-25)

Re-release all packages with npm provenance attestations

v7.28.6

Compare Source

v7.28.6 (2026-01-12)

Thanks @​kadhirash and @​kolvian for your first PRs!

🐛 Bug Fix

• babel-cli, babel-code-frame, babel-core, babel-helper-check-duplicate-nodes, babel-helper-fixtures, babel-helper-plugin-utils, babel-node, babel-plugin-transform-flow-comments, babel-plugin-transform-modules-commonjs, babel-plugin-transform-property-mutators, babel-preset-env, babel-traverse, babel-types
  • #​17589 Improve Unicode handling in code-frame tokenizer (@​JLHwung)
• babel-plugin-transform-regenerator
  • #​17556 fix: transform-regenerator correctly handles scope (@​liuxingbaoyu)
• babel-plugin-transform-react-jsx
  • #​17538 fix: Keep jsx comments (@​liuxingbaoyu)

💅 Polish

• babel-core, babel-standalone
  • #​17606 Polish(standalone): improve message on invalid preset/plugin (@​JLHwung)

🏠 Internal

• babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-plugin-proposal-decorators, babel-plugin-proposal-import-attributes-to-assertions, babel-plugin-proposal-import-wasm-source, 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-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-dotall-regex, babel-plugin-transform-duplicate-named-capturing-groups-regex, babel-plugin-transform-explicit-resource-management, babel-plugin-transform-exponentiation-operator, 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-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-regexp-modifiers, babel-plugin-transform-unicode-property-regex, babel-plugin-transform-unicode-sets-regex
  • #​17580 Allow Babel 8 in compatible Babel 7 plugins (@​nicolo-ribaudo)

🏃‍♀️ Performance

• babel-plugin-transform-react-jsx
  • #​17555 perf: Use lighter traversal for jsx __source,__self (@​liuxingbaoyu)

Committers: 7

• Babel Bot (@​babel-bot)
• Eliot Pontarelli (@​kolvian)
• Huáng Jùnliàng (@​JLHwung)
• Kadhirash Sivakumar (@​kadhirash)
• Nicolò Ribaudo (@​nicolo-ribaudo)
• @​liuxingbaoyu
• coderaiser (@​coderaiser)

v7.28.5

Compare Source

👓 Spec Compliance

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

🐛 Bug Fix

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

🏠 Internal

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

🏃‍♀️ Performance

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

v7.28.4

Compare Source

🏠 Internal

• babel-core, babel-helper-check-duplicate-nodes, babel-traverse, babel-types
  • #​17493 Update Jest to v30.1.1 (@​JLHwung)
• babel-plugin-transform-regenerator
  • #​17455 chore: Clean up transform-regenerator (@​liuxingbaoyu)
• babel-core
  • #​17474 Switch to @​jridgewell/remapping (@​mrginglymus)

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)

v7.27.5

Compare Source

🐛 Bug Fix

• babel-plugin-transform-regenerator
  • #​17359 fix: Unexpected infinite loop with regenerator for try (@​liuxingbaoyu)
• Other
  • #​17349 Map ESLint's sourceType: commonjs to script (@​JLHwung)

💅 Polish

• babel-parser
  • #​17333 Improve using declaration errors (@​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)

v7.26.10

Compare Source

👓 Spec Compliance

• babel-parser
  • #​17159 Disallow decorator in array pattern (@​JLHwung)

🐛 Bug Fix

• babel-parser, babel-template
  • #​17164 Fix: always initialize ExportDeclaration attributes (@​JLHwung)
• babel-core
  • #​17142 fix: "Map maximum size exceeded" in deepClone (@​liuxingbaoyu)
• babel-parser, babel-plugin-transform-typescript
  • #​17154 Update typescript parser tests (@​JLHwung)
• babel-traverse
  • #​17151 fix: Should not evaluate vars in child scope (@​liuxingbaoyu)
• babel-generator
  • #​17153 fix: Correctly generate abstract override (@​liuxingbaoyu)
• babel-parser
  • #​17107 Fix source type detection when parsing TypeScript (@​JLHwung)
• babel-helpers, babel-runtime, babel-runtime-corejs2, babel-runtime-corejs3
  • #​17173 Fix processing of replacement pattern with named capture groups (@​mmmsssttt404)

💅 Polish

• babel-standalone
  • #​17158 Avoid warnings when re-bundling @​babel/standalone with webpack (@​liuxingbaoyu)

🏠 Internal

• babel-parser
  • #​17160 Left-value parsing cleanup (@​JLHwung)

v7.26.8

Compare Source

v7.26.8 (2025-02-08)

🏠 Internal

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

v7.26.5

Compare Source

👓 Spec Compliance

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

🐛 Bug Fix

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

🔬 Output optimization

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

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npm warn Unknown env config "store". This will error in a future major version of npm. See `npm help npmrc` for supported config options.
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npm error While resolving: webpack-ext-reloader@1.1.13
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