MDXBlog has been updated to incorporate the latest features of Next.js 15. The new release focuses on performance, security, and modern development capabilities.

Download the source code here

Key Updates in Next.js 15:

• Async Request APIs: Breaking change to caching—fetch requests and GET routes are no longer cached by default. Improves control over rendering and caching.
• React 15 features React 19 Support: Enhanced hydration error handling and experimental React Compiler integration. Currently we are using React 18 because many dependencies are not 100% compatible with React 19 at the time of this writing.
• Turbopack Dev: Faster builds and stable development performance improvements.
• unstable_after API: Experimental API to execute code after response streaming.
• Caching Semantics: Updated caching for fetch, GET handlers, and client navigation.
• instrumentation.js API: Server lifecycle observability for debugging and monitoring.
• next.config.ts: Full TypeScript support for configuration files.
• Server Actions Security: Secure endpoints and automatic cleanup of unused actions.

The updated code is currently in beta and available for testing.

GitHub Repo: N15-Site-Template