Next.js 15 has been released, offering significant improvements like stable support for Server Actions, replacing Webpack with Turbopack for faster builds, and introducing Partial Prerendering for combining static and dynamic content seamlessly. The update also includes enhanced image optimization with Blurhash and AVIF support, nested support for layouts and templates, and making React Server Components easier to use. Furthermore, there are improvements in middleware functionality, SEO with a Metadata API, built-in support for Edge Configs and Vercel KV, better developer experience features, enhanced analytics capabilities, and native support for web vitals reporting with custom handlers. Finally, the update also introduces AI integrations via Vercel’s AI SDK for Edge AI capabilities.