Next.js 15.1

Next.js 15.1 brings core upgrades, new APIs, and improvements to the developer experience. Key updates include:

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Next.js 15.1 now fully supports React 19:

Since the Next.js 15 release, a significant addition to React 19 was “ sibling pre-warming ”.

For a comprehensive overview of React 19’s updates, please refer to the official React 19 blog post .

We’ve made improvements to error debugging in Next.js, ensuring you can quickly locate the source of issues, whether they appear in the terminal, browser, or attached debuggers. These enhancements apply to both Webpack and Turbopack ( now stable with Next.js 15 ).

Errors are now easier to trace back to their origin through the improved use of…