Metro Bundler for React Native

Metro is the JavaScript bundler specifically designed for React Native applications, providing optimized bundling, hot module reloading (HMR), and Fast Refresh capabilities crucial for efficient mobile development workflows. It is currently at version 0.84.3 and typically sees frequent minor releases, incorporating new features, bug fixes, and performance improvements. Key differentiators include its deep integration with the React Native ecosystem, advanced caching mechanisms for fast rebuilds, and robust support for various configuration options, including CommonJS, ESM, and TypeScript configuration files. Metro focuses on delivering a high-performance and streamlined developer experience, enabling rapid iteration cycles for large-scale React Native projects. It requires Node.js versions ^20.19.4 || ^22.13.0 || ^24.3.0 || >= 25.0.0.