Next.js 15 Beta: Server Actions and Prerendering
Vercel has launched the Next.js 15 Beta featuring Server Actions, Partial Prerendering, and faster routing with Turbopack enhancements.
Next.js 15 Beta
Next.js 15 Beta Released
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Vercel announced the beta version during its latest developer conference.
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Focuses on dynamic performance, edge computing, and DX enhancements.
Server Actions (Stable)
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Allows developers to mutate data on the server directly from the client.
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Simplifies form handling and reduces boilerplate API routes.
Partial Prerendering (Experimental)
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New feature that allows combining static and dynamic rendering on a single page.
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Enhances Core Web Vitals by deferring dynamic content load.
Turbopack Improvements
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Replaces Webpack with faster Rust-based bundling engine.
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Builds and hot reloading are up to 10x faster than before.
Improved App Router
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Enhanced routing API supports layouts, loading states, and error boundaries more effectively.
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Encourages better architectural separation.
React Compiler Ready
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Next.js 15 supports React 19's new compiler optimizations.
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Developers can experiment with automatic memoization.
Middleware and Edge Support
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Extended capabilities for edge functions and regional API routing.
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Enables true personalization at the edge.
Enhanced SEO Defaults
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New metadata API streamlines the process of managing SEO tags.
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Dynamically updates meta tags based on routing context.
File-Based Caching
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Introduced smarter caching based on static file invalidation.
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Helps reduce re-renders and accelerates deployments.
Beta Feedback Open
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Vercel invites developers to try the beta and submit feedback via GitHub.
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Full release expected within Q3 2025 after bug fixes and stabilization.
