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Next.js Route Handlers in 2026: Replacing API Routes, Handling Streaming Responses, and Edge Runtime Gotchas
September 12, 2026
Route Handlers replaced API Routes in Next.js 13+. Learn streaming responses, edge runtime constraints, and production patterns for webhooks, uploads, and SSE in 2026.
React startTransition Without useTransition: The Standalone API Teams Keep Overlooking in Concurrent Mode
September 11, 2026
Most teams reach for useTransition by default, missing React's standalone startTransition export that unlocks concurrent scheduling outside components—in event handlers, third-party stores, and synchronous callbacks where hooks cannot exist.
Next.js useRouter vs redirect vs permanentRedirect in App Router: Choosing the Right Navigation Primitive
September 10, 2026
Master Next.js App Router navigation by understanding when to use useRouter, redirect, and permanentRedirect. Learn the technical differences, performance implications, and real-world patterns that prevent runtime crashes and SEO penalties.
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