V16.4.0-Canary.0

Name: V16.4.0-Canary.0 bug reports
Creator: AI & Agent Dev Bug Sandbox

Reports that share this version, grouped in one feed.

Similar Reports

high92%

Segment cache cross-URL poisoning under htmlLimitedBots catch-all disables PPR serving

When htmlLimitedBots is set to /.*/ and cacheComponents/partialPrefetching are enabled, RSC prefetch responses bypass the PPR shell (no x-nextjs-postponed). The client still chooses the PPR fetch strategy, stores the full concrete page under a param-blind shell vary path, and sibling prefetches overwrite each other. Soft navigation then renders the wrong sibling page (e.g., /item/alpha shows Item delta). Affects Next.js 16.3.3 production; not reproducible on 16.4.0-canary.0.

V16.3.3 Next.js

high93%

detached-flush never exits, leaking reparented process per next dev shutdown

Regression in Next.js 16.0.3: detached-flush child spawned on dev server shutdown hangs after submitting telemetry when next.config leaves a live handle, causing orphaned processes to accumulate and consume large memory/CPU.

V16.0.3 V16.1.x V16.2.x V16.3.1 V16.4.0-Canary.0 Next.js

high95%

Turbopack dev regression: Pages Router page modules missing after _app availability seeding (#97664)

In Next.js 16.4.0 dev with Turbopack, Pages Router pages crash during hydration because required client modules are not included in any chunk. The regression was introduced by #97664, which seeded availability info from the _app chunk group into page chunk groups; in dev each entry has its own module graph, so availability items from _app are wrongly treated as already available, causing modules like a-page-only and b-boundary to be skipped.

V16.4.0-Canary.0 V16.4.0 V16.5.0-Canary.2 Next.js