With Next.js 15, the boundary between server execution and client hydration has become clearer and more powerful. Understanding how to leverage Partial Prerendering (PPR) is key to delivering ultra-fast web pages.
Static Shells with Streaming Holes
Partial Prerendering combines the speed of static site generation with the flexibility of dynamic server rendering. The initial layout shell renders instantly from edge caches, while personalized user components stream in asynchronously without causing layout shifts.
Server Actions without Boilerplate
Mutations no longer require explicit API route handlers or third-party state managers. Server Actions provide type-safe RPC invocations directly from UI components, reducing client bundle size and simplifying error handling.