Next.js 15.1 • React 19 (stable) • Improved errors and source maps • `after` (stable) • `forbidden` / `unauthorized` (experimental) • CSS inlining (experimental) nextjs.org/15-1
Next.js 15.1
Next.js 15.1 introduces React 19 stable support, improved error debugging, new experimental authorization APIs, and more.
nextjs.org