🚀React Router Switches to Rust React Compiler, Boosts Speed
React Router just got 17.6x faster with Rust
TL;DR
React Router now uses Rust React Compiler, slashing build times by 17.6x. The switch impacts Vite and React Router users, offering faster builds and improved compatibility.
React Router has switched to the Rust React Compiler, resulting in a 17.6x speedup on the compiler portion of the build process. This change is a big deal for developers using Vite or React Router, as it significantly reduces build times and enhances compatibility with complex JavaScript features. The overall build time improvement was around 2.4× faster, going from 22.1 seconds to 9.3 seconds. The new compiler also addresses several limitations in JavaScript support, including conditional logic in try/catch blocks and reassigning destructured component props.
Key Points
React Router switched to Rust React Compiler on August 4, 2026, boosting build speed by 17.6x.
V6.1.0 of @vitejs/plugin-react introduces 'experimental native React Compiler support'.
Opt-in to the new compiler by passing { compiler: true } to the Vite plugin in the config.
The new compiler supports additional seven functions, expanding compatibility.
For React Router in framework mode, use the React Router Vite plugin instead of the standard Vite React plugin.
Why It Matters
If you're using Vite or React Router, the switch to the Rust React Compiler means your builds are now 17.6x faster. This is especially beneficial for large codebases, reducing the time spent waiting for builds. The new compiler also addresses several JavaScript limitations, improving compatibility and reliability. However, smaller projects might not see as significant an impact, as the speedup is most noticeable in the compiler portion of the build process.
Frequently Asked Questions
Why does this matter?
If you're using Vite or React Router, the switch to the Rust React Compiler means your builds are now 17.6x faster. This is especially beneficial for large codebases, reducing the time spent waiting for builds. The new compiler also addresses several JavaScript limitations, improving compatibility and reliability. However, smaller projects might not see as significant an impact, as the speedup is most noticeable in the compiler portion of the build process.
What happened?
React Router now uses Rust React Compiler, slashing build times by 17.6x. The switch impacts Vite and React Router users, offering faster builds and improved compatibility.
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