This blog explores the cutting-edge features of Next.js 15 RC, including React 19 support and experimental advancements.

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Next.js 15 RC introduces new features including support for React 19 RC, improved hydration error handling, and advanced caching updates. The update divides features into stable improvements like caching and experimental features like the React Compiler and partial prerendering. Instructions are provided for upgrading to the latest version using npm or yarn. The React Compiler aims to optimize code automatically, and new caching controls offer more flexibility. Enhancements in create-next-app and response execution with next/after API are also covered.

What’s New in Next.js 15 RC?

How do I upgrade to the latest Next.js version?

Improving the bundling of external libraries (stable)

Response execution with next/after (experimental)