What's new in Next.js 16? Performance, Caching, and the New Architecture

We unpack Next.js 16’s foundational shifts—from performance becoming the default (TurboPack bundling and React compiler integration) to explicit caching with useCache and the renamed middleware proxy.ts. We explore routing advances (layout deduplication and incremental prefetching), DX improvements via the Model Context Protocol for AI-assisted debugging.  Next.js 16 introduces several significant updates and changes, focusing on performance, developer experience, and architectural improvements.

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