plugin-react@4.3.3

React Compiler runtimeModule option removed

React Compiler was updated to accept a target option and runtimeModule was removed. vite-plugin-react will still detect runtimeModule for backwards compatibility.

When using a custom runtimeModule or target !== '19', the plugin will not try to pre-optimize react/compiler-runtime dependency.

The react-compiler-runtime is now available on npm can be used instead of the local shim for people using the compiler with React < 19.

Here is the configuration to use the compiler with React 18 and correct source maps in development:

npm install babel-plugin-react-compiler react-compiler-runtime @babel/plugin-transform-react-jsx-development

export default defineConfig(({ command }) => {
  const babelPlugins = [['babel-plugin-react-compiler', { target: '18' }]]
  if (command === 'serve') {
    babelPlugins.push(['@babel/plugin-transform-react-jsx-development', {}])
  }

  return {
    plugins: [react({ babel: { plugins: babelPlugins } })],
  }
})