Next.js 15 Release Candidate (RC) is now available

The Next.js 15 Release Candidate (RC) is now available, offering a chance to test new features before the stable release. Highlights include:

  • React Compatibility: Supports the React 19 RC, introduces the experimental React Compiler, and improves hydration error handling.

  • Caching Updates: Fetch requests, GET Route Handlers, and client navigations are not cached by default.

  • Experimental Partial Prerendering: Adds a configuration option for layouts and pages to adopt this feature incrementally.

  • Experimental next/after API: Allows execution of code after a response finishes streaming.

  • create-next-app Enhancements: Updated design and a new flag to enable Turbopack for local development.

  • Stable Bundling of External Packages: New configuration options for the App and Pages Router.

These enhancements aim to boost performance, improve developer experience, and provide greater flexibility in building web applications.

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