Babel v8.0.0-rc.6

v8.0.0-rc.6 (2026-05-25)

Re-release all packages with npm provenance attestations

:bug: Bug Fix

• babel-generator
  • #18011 Catchup source map position in preserveFormat (@nicolo-ribaudo)
• babel-core
  • #17999 fix: improve inputSourceMap URL handling (@JLHwung)
• babel-core, babel-generator
  • #17992 Preserve original identifier names from input sourcemaps (@Andarist)

:house: Internal

• babel-core
  • #17970 Always use native Node.js TS support for config files (@nicolo-ribaudo)
• babel-compat-data, babel-register
  • #17993 chore: use bundled dts for register and eslint-* (@JLHwung)
• babel-helper-transform-fixture-test-runner, babel-node
  • #17989 Test Node.js 26 on CI (@nicolo-ribaudo)
• babel-build-external-helpers, babel-cli, babel-generator, babel-helper-fixtures, babel-helper-plugin-test-runner, babel-helper-transform-fixture-test-runner, babel-node, babel-parser, babel-plugin-transform-modules-systemjs, babel-types
  • #18002 Add file URL support for test runners (@JLHwung)

:microscope: Output optimization

• babel-cli, babel-core, babel-generator, babel-plugin-transform-class-properties, babel-plugin-transform-destructuring, babel-plugin-transform-explicit-resource-management, babel-plugin-transform-modules-commonjs, babel-plugin-transform-react-jsx, babel-traverse
  • #18005 Do not emit source map names for identical names (@nicolo-ribaudo)

Committers: 5

• Babel Bot (@babel-bot)
• Huáng Jùnliàng (@JLHwung)
• Mateusz Burzyński (@Andarist)
• Nicolò Ribaudo (@nicolo-ribaudo)
• @liuxingbaoyu