Babel v8.0.4

v8.0.4 (2026-07-09)

:eyeglasses: Spec Compliance

• babel-parser, babel-plugin-transform-typescript
  • #18120 fix(parser): disallow declare module M {} (@JLHwung)
• babel-generator, babel-parser, babel-plugin-transform-typescript
  • #18100 fix(parser): forbid let x! and let x! = (@JLHwung)

:bug: Bug Fix

• babel-traverse
  • #18122 fix: replaceWith in Visitor#exit should not stop traversal (@liuxingbaoyu)

:house: Internal

• babel-helper-validator-identifier
  • #18084 refactor: Shrink validator identifier size (@JLHwung)

Committers: 4

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