React Compiler Rewritten in Rust—Most of the Code Generated by Claude AI
The React team merged a massive PR that ports the React Compiler from TypeScript to Rust, adding over 123,000 lines, delivering roughly 3× overall speed and 10× pure transform speed, preserving the original architecture, passing 1,725 tests, supporting Babel, OXC and SWC integrations, and largely written with Claude AI, though it remains an early‑sharing experimental build.
