Next.js 16 Auth Security: 5 Mistakes Exposing Your App in 2026

Next.js 16 auth changed silently: proxy.ts replaces middleware.ts, Server Actions are open endpoints, and 13 CVEs hit in May 2026. Here is what to fix right now.

Next.js 16 auth changed silently: proxy.ts replaces middleware.ts, Server Actions are open endpoints, and 13 CVEs hit in May 2026. Here is what to fix right now.
TypeScript 5.9 import defer gives you lazy module loading without async/await. Here's how it works, the 3 gotchas that burn developers, and when NOT to use it.
Vite 8 dropped March 2026 with Rolldown replacing esbuild and Rollup. Real benchmarks, the 3 gotchas that break upgrades, and a safe two-step migration path.

Cloudflare acquired VoidZero on June 4, 2026. What Vite 8's Rolldown pipeline means for your JS project, with an honest vendor-lock risk assessment.



