Rolldown 1.0 RC is now available — a Rust-powered JavaScript/TypeScript bundler that is 10-30x faster than Rollup while maintaining full compatibility with Rollup's plugin API. Key features include built-in TypeScript/JSX transforms via Oxc, native CJS/ESM interop, built-in Node.js module resolution, and webpack-like granular code splitting. Since beta.1, over 3,400 commits landed covering 749 features, 682 bug fixes, and 109 performance optimizations. The RC signals API stability with no breaking changes planned before 1.0. Rolldown is also the default bundler in the Vite 8 beta, unifying Vite's previously split esbuild/Rollup build pipeline.
Table of contents
What is Rolldown? Key Features Try It Out What "RC" Means What We've Been Working On Roadmap to 1.0 and Vite 8 Acknowledgements Join the Community Give It a Try 24 Impressions