@babel/preset-env 8.0.0-beta.4

on Node.js NPM

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

Thanks @ivonaest, @simbahax, and @sxzz for your first PRs!

💥 Breaking Change

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

🐛 Bug Fix

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

💅 Polish

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

🏠 Internal

• All packages
  • #17660 Update publishing process for Babel 8 (@nicolo-ribaudo)
• babel-cli, babel-helper-transform-fixture-test-runner, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-object-rest-spread
  • #17676 Remove unused deps (@nicolo-ribaudo)
• babel-code-frame, babel-core
  • #17677 Stop vendoring import-meta-resolve (@nicolo-ribaudo)
• babel-core
  • #17665 chore: add preset-typescript as optional peer dep (@JLHwung)
  • #17569 Add BABEL_7_TO_8_DANGEROUSLY_DISABLE_VERSION_CHECK (@nicolo-ribaudo)
• babel-helpers, babel-runtime-corejs3, babel-runtime
  • #17661 Remove @onlyBabel7 helpers (@nicolo-ribaudo)
• babel-core, babel-generator, babel-helper-create-class-features-plugin, babel-helper-skip-transparent-expression-wrappers, babel-plugin-transform-flow-comments, babel-plugin-transform-for-of, babel-plugin-transform-typescript
  • #17651 cleanup @ts-expect-error(Babel 7 vs Babel 8) comments (Part 1) (@JLHwung)
• babel-code-frame
  • #17645 Bump js-tokens to v10 (@fisker)
• babel-parser
  • #17641 [Babel 8] Parser cleanup (@JLHwung)
• babel-core, babel-traverse
  • #17638 refactor: replace debug with obug (@sxzz)
• babel-helper-builder-react-jsx
  • #17621 [babel 8] Remove @babel/types dep from helper-builder-react-jsx (@nicolo-ribaudo)
• babel-generator, babel-parser
  • #17597 Record and tuple cleanup (@JLHwung)
• babel-cli, babel-types
  • #17594 [Babel 8]: Bump glob to v12 (@JLHwung)
• babel-cli
  • #17590 [Babel 8] chore: bump glob to v11 (@JLHwung)

Committers: 12

• Babel Bot (@babel-bot)
• David (@simbahax)
• Eliot Pontarelli (@kolvian)
• Huáng Jùnliàng (@JLHwung)
• Kadhirash Sivakumar (@kadhirash)
• Kevin Deng (@sxzz)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @ivonaest
• @liuxingbaoyu
• @magic-akari
• coderaiser (@coderaiser)
• fisker Cheung (@fisker)