At React Conf 2024, we announced the experimental release of React Compiler, a build-time tool that optimizes your React app through automatic memoiza

React Compiler Beta Release

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Style Pass

2024-10-21 19:30:04

At React Conf 2024, we announced the experimental release of React Compiler, a build-time tool that optimizes your React app through automatic memoization. You can find an introduction to React Compiler here.

Since the first release, we’ve fixed numerous bugs reported by the React community, received several high quality bug fixes and contributions1 to the compiler, made the compiler more resilient to the broad diversity of JavaScript patterns, and have continued to roll out the compiler more widely at Meta.

At React India 2024, we shared an update on React Compiler. Today, we are excited to announce a new Beta release of React Compiler and ESLint plugin. New betas are published to npm using the @beta tag.

React Compiler’s ESLint plugin helps developers proactively identify and correct Rules of React violations. We strongly recommend everyone use the linter today. The linter does not require that you have the compiler installed, so you can use it independently, even if you are not ready to try out the compiler.

React Compiler produces code that depends on runtime APIs added in React 19, but we’ve since added support for the compiler to also work with React 17 and 18. If you are not on React 19 yet, in the Beta release you can now try out React Compiler by specifying a minimum target in your compiler config, and adding react-compiler-runtime as a dependency. You can find docs on this here.