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@dependabot dependabot bot commented on behalf of github Jan 31, 2026

Bumps rolldown from 1.0.0-rc.1 to 1.0.0-rc.2.

Release notes

Sourced from rolldown's releases.

v1.0.0-rc.2

[1.0.0-rc.2] - 2026-01-28

⚡ Lazy Barrel Optimization

  • Skips compilation of unused re-export modules in side-effect-free barrel modules
  • Particularly beneficial for projects importing from large component libraries

For large component libraries like Ant Design, when you import just one component:

import { Button } from 'antd';
Button;
Metric Without lazy barrel With lazy barrel
Modules compiled 2986 250
Build time (macOS) ~65ms ~28ms
Build time (Windows) ~210ms ~50ms

By enabling lazy barrel, Rolldown reduces the number of compiled modules by 90% and speeds up the build by 2-4x.

Enable it in your config:

export default {
  experimental: {
    lazyBarrel: true,
  },
};

For more details, see the https://rolldown.rs/in-depth/lazy-barrel-optimization

💥 BREAKING CHANGES

  • expose \0rolldown/runtime in transform hook (#8068) by @​hyf0
  • rename rolldown:runtime to \0rolldown/runtime.js (#8067) by @​hyf0

🚀 Features

🐛 Bug Fixes

... (truncated)

Changelog

Sourced from rolldown's changelog.

[1.0.0-rc.2] - 2026-01-28

💥 BREAKING CHANGES

  • expose \0rolldown/runtime in transform hook (#8068) by @​hyf0
  • rename rolldown:runtime to \0rolldown/runtime.js (#8067) by @​hyf0

🚀 Features

🐛 Bug Fixes

🚜 Refactor

📚 Documentation

... (truncated)

Commits
  • 10290d2 release: v1.0.0-rc.2 (#8106)
  • c5a4b7f fix: update the links to Rolldown docs in the error messages (#8103)
  • dd1b8aa refactor(rolldown_plugin_vite_dynamic_import_vars): remove v1 implementation ...
  • 1d5fcb8 refactor(rolldown_plugin_vite_import_glob): remove v1 implementation (#8095)
  • 3e9b89a test(lazy-barrel): use package.json sideEffects instead of plugin hook (#8077)
  • 5ecc11b test(lazy-barrel): enable tests and add treeshake-behavior cases (#8071)
  • f45db8e refactor(lazy-barrel): restructure lazy barrel implementation (#8070)
  • f3a03ed refactor!: rename rolldown:runtime to \0rolldown/runtime.js (#8067)
  • f3393e8 refactor: remove use_built_ins and use_spread from internal JSX options (...
  • b346095 chore(deps): update oxc to v0.111.0 (#8063)
  • Additional commits viewable in compare view

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Bumps [rolldown](https://github.com/rolldown/rolldown/tree/HEAD/packages/rolldown) from 1.0.0-rc.1 to 1.0.0-rc.2.
- [Release notes](https://github.com/rolldown/rolldown/releases)
- [Changelog](https://github.com/rolldown/rolldown/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rolldown/rolldown/commits/v1.0.0-rc.2/packages/rolldown)

---
updated-dependencies:
- dependency-name: rolldown
  dependency-version: 1.0.0-rc.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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