Next.js 15 Beta Adds Partial Prerendering & React 19
Vercel releases Next.js 15 Beta featuring Partial Prerendering, improved Turbopack bundling, React 19 support, and more for modern web developers.
Next.js 15 Beta Out
Next.js 15 Beta Released
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Vercel introduces Next.js 15 Beta, packed with new features and performance upgrades.
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Emphasizes enhanced developer experience and production-ready flexibility.
Partial Prerendering (PPR)
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Key feature: Partial Prerendering, combines SSR and static rendering.
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Allows pages to be partly pre-rendered and completed on the client.
Built-In React 19 Support
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Fully compatible with React 19 Beta, including Streaming Server Components and Actions API.
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Native use() hook integration improves async rendering.
Turbopack Improvements
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Turbopack, the Rust-based bundler, sees major performance gains.
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Faster dev builds, improved cache performance, and more stable HMR.
Updated Routing Features
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Enhancements to App Router for better nested layouts and data fetching.
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Simpler handling of dynamic routes with new conventions.
Image Optimization Revamp
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New next/image features: responsive loading strategies and cache optimizations.
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Enhanced support for modern formats like AVIF and WebP.
Improved Middleware API
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More powerful edge middleware for real-time personalization.
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Supports custom logic based on geolocation, headers, or cookies.
Built-in SEO Enhancements
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Native structured data support with new metadata configuration options.
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Easier sitemap generation and canonical tag handling.
Better Error Handling & Debugging
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Clearer stack traces and improved logging with React 19.
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Enhanced DevTools integration for tracing async operations.
Deployment-Ready
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Beta available now via npm install next@beta.
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Final release expected in Q4 2025 after community feedback.
