Dynamic Pages API routes return 404 on Vercel when Pages Router i18n is enabled

cacheComponents: dynamic-`generateMetadata` check fires on partial fallback shells that Next itself marked `allowEmptyStaticShell` — no userland fix exists

experimental.testProxy hangs raw TCP sockets (regression in 16.3.0, works in 16.2.12)

next/swc drops the leading whitespace of a JSX text node that contains an HTML entity

Turbopack persistent dev cache always fails on Windows with "Access is denied (os error 5)" during commit, disabling memory eviction

NextJS copies `_writableState` to a Readable object, breaks Node `Readable.toWeb()` on POST routes

[Turbopack] Dead-code elimination drops code after a `switch`, Server Action returns `undefined` in production

server-reference-manifest grows to 170MB+ and scales O(server-references × pages) with output: 'standalone' (Next 16, Cache Components)

create-next-app fails with pnpm v11+ due to build approval

Infinite reload loop in Firefox with loading.tsx and slow async Server Components