On December 10th, 2024, Vercel released the Next.js 15.1 update, focused on optimizing performance and enhancing the developer experience. The key changes are:
- Error Debugging has been improved and now offers better DX and source maps for the browser and the terminal.
- Next.js now offers React 19 support, making it compatible with the library’s new features.
- New
forbiddenandunauthorizedAPIs allow more granular authentication error handling but keep in mind they’re still experimental. - The stable
afterAPI can execute code after a response has finished streaming.
Smaller additions to the update include features like increasing max cache tags to 128 and experimental CSS inlining support among many others.
To learn more, read full update notes.
Read about React 19 stable release.
See what was introduced in Next.js 15.
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