Babel: v8.0.0-beta.3 Release

v8.0.0-beta.3 (2025-10-23)

:boom: Breaking Change

• babel-parser
  • #17505 [Babel 8] Treat allowSuperOutsideMethod as top-level only (@JLHwung)

:bug: Bug Fix

• babel-traverse, babel-types
  • #17499 Enable strictNullChecks for traverse (@liuxingbaoyu)
• babel-plugin-transform-runtime
  • #17512 [babel 8] Update default @babel/runtime version (@nicolo-ribaudo)

:nail_care: Polish

• babel-core, babel-helper-transform-fixture-test-runner, babel-plugin-transform-runtime, babel-preset-env, babel-preset-react, babel-preset-typescript
  • #17404 Improve @babel/core types (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-flow-comments, babel-plugin-transform-logical-assignment-operators, babel-traverse, babel-types
  • #17500 [Babel 8] Better node type definitions for computed (@liuxingbaoyu)

:house: Internal

• babel-plugin-transform-runtime
  • #17511 [babel 8] Remove semver dependency from transform-runtime (@nicolo-ribaudo)

:running_woman: Performance

• babel-traverse
  • #17043 [Babel 8] Improve scope information collection performance (@liuxingbaoyu)
• babel-helper-create-class-features-plugin, babel-plugin-bugfix-firefox-class-in-computed-class-key, babel-plugin-transform-modules-systemjs, babel-plugin-transform-typescript
  • #17518 [Babel 8] Use t.traverseFast to replace some path.traverse (@liuxingbaoyu)

Committers: 8

• Babel Bot (@babel-bot)
• Byeongho Yoo (@youthfulhps)
• Huáng Jùnliàng (@JLHwung)
• Hyeon Dokko (@CO0Ki3)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @Olexandr88
• @liuxingbaoyu
• fisker Cheung (@fisker)