@babel/plugin-transform-class-properties

This release includes a breaking change that was in the Babel 8 migration guide's Getting ready section and in the release post, but the actual removal of the feature from the codebase was accidentally not complete.

:boom: Breaking Change

• breaking

  babel-core, babel-plugin-transform-object-rest-spread, babel-plugin-transform-runtime, babel-preset-env, babel-standalone: Actually remove preset-env's useBuiltIns (@nicolo-ribaudo)

NOTE: The changelog below is relative to v8.0.0-rc.6. You can find a summary of all the breaking changes shipped in the Babel 8 release line in the migration guide for users and migration guide for plugin developers.

Read the release blog post at babeljs.io/blog/2026/06/16/8.0.0!

:boom: Breaking Change

• breaking

  babel-plugin-transform-runtime, babel-runtime-corejs3, babel-runtime: Remove corejs exports for @babe/runtime-corejs3 (@liuxingbaoyu)

• breaking

  babel-parser: Remove locations: "packed" (@liuxingbaoyu)

:memo: Documentation

• Add EOL date for Babel 7 (end of June 2027) to SECURITY.md (@nicolo-ribaudo)