@babel/standalone 8.0.0-rc.4 on Node.js NPM

v8.0.0-rc.4 (2026-04-29)

babel-parser
- #17954 fix(parser): ts parser small fixes (@JLHwung)
- #17923 Support flow extends bound (@JLHwung)
- #17888 TS parser small fixes (@JLHwung)
- #17865 Fix(parser): flow parser small fixes (@JLHwung)
babel-generator, babel-parser, babel-plugin-transform-spread, babel-types
- #17871 Disallow super call after new (@JLHwung)

babel-cli, babel-helper-transform-fixture-test-runner, babel-helpers, babel-node, babel-register
- #17938 Bundle more packages (@JLHwung)
babel-traverse
- #17937 Remove Scope#buildUndefinedNode (@nicolo-ribaudo)
babel-helper-wrap-function, babel-plugin-transform-block-scoping, babel-plugin-transform-regenerator, babel-traverse
- #17907 Remove NodePath#toComputedKey (@liuxingbaoyu)
babel-plugin-external-helpers, babel-template, babel-traverse
- #17830 Replace remaining whitelist/blacklist with inclusive alternatives (@stuckvgn)
babel-plugin-transform-property-mutators, babel-standalone
- #17882 Remove @babel/plugin-transform-property-mutators (@liuxingbaoyu)

babel-register
- #17928 fix(register): skip hook for ignored files (@JLHwung)
- #17915 Fix thread synchronization issues in @babel/register (@liuxingbaoyu)
babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
- #17947 Fix decorators interaction with abstract/declare fields (@nicolo-ribaudo)
- #17931 fix(decorators): replace super within all removed static elements (@JLHwung)
Other
- #17940 fix(eslint-plugin): Cleanup references to removed rules (@JLHwung)
babel-core
- #17933 Update Babel 8 config item brand (@JLHwung)
babel-types
- #17885 Make ArrowFunctionExpression.expression optional (@liuxingbaoyu)

babel-register
- #17941 Uninstall sms in register revert (@JLHwung)
babel-parser
- #17902 polish(parser): improve ImportExpression error recovery (@JLHwung)

Other
- #17944 refactor(eslint): remove compat layers for ESLint < 9 (@JLHwung)
babel-core, babel-generator
- #17880 chore: Remove unused merging source map code (@liuxingbaoyu)