Issues

• RSC fetch stays open after client disconnect when using cacheSignal()

  Loading UI and StreamingReactRuntime
  Bug

  vercel/next.js#101049 · Filter by author r34son opened on Nov 2, 2026
  1

• Turbopack 16.4.x: next build compile is 10-15x slower than on 16.3.8 / 16.5 canary with a barrel that export *s thousands of modules

  Turbopack
  vercel/next.js#101045 · Filter by author miedzikd opened on Nov 2, 2026

• Pages Router with i18n records an ERROR "load route module" span on every successful request

  InstrumentationInternationalization (i18n)Pages Router
  vercel/next.js#101036 · Filter by author AdamBusfy opened on Nov 2, 2026

• experimental.cpus is capped at route count + 1, so one generateStaticParams route with thousands of paths renders on 4 workers

  Performance
  vercel/next.js#101030 · Filter by author Zinn-Digital-LTD opened on Nov 2, 2026

• Turbopack: re-exported namespace (import * as x; export { x }) keeps every member, webpack tree-shakes it

  vercel/next.js#101019 · Filter by author Roei-Berkovich opened on Nov 1, 2026

• cacheComponents: next build rebuilds a React component stack for every dynamic hole, ~23% of static generation CPU in our app

  PerformanceReact
  vercel/next.js#101014 · Filter by author ceolinwill opened on Nov 1, 2026

• import.meta.glob with eager and import returns undefined in next build (16.4)

  Turbopack
  vercel/next.js#101013 · Filter by author zachthedev opened on Nov 1, 2026

• next.config.ts: backport #99743 to 15.5.x — relative imports resolve against process.cwd()

  vercel/next.js#100978 · Filter by author dxdc opened on Oct 30, 2026

• Soft navigation waits for the target's in-flight segment prefetch (page head) instead of showing loading.js (regression in 16.3.1-canary.16, still in 16.4.3)

  Linking and NavigatingLoading UI and StreamingMetadata
  vercel/next.js#100968 · Filter by author timson-js opened on Oct 30, 2026
  2

• cacheComponents: Link header from next.config headers() is duplicated and grows on every ISR regeneration

  Headers
  vercel/next.js#100959 · Filter by author linyiru opened on Oct 30, 2026

• GA4 form_submit event not sent

  Form (next/form)
  Bug

  vercel/next.js#100938 · Filter by author EPurwanto opened on Oct 30, 2026

• Safari: Back skips a page when you typed in a text field on it before navigating with <Link>

  vercel/next.js#100931 · Filter by author leemoto opened on Oct 30, 2026

• turbopackSharedRuntime: true emits an inline bootstrap script that violates strict script-src CSPs

  Output
  Bug

  vercel/next.js#100906 · Filter by author braity opened on Oct 29, 2026
  5

• Turbopack: other pages' client components land in every page's first-load JS (regression in 16.5.0-canary.27)

  PerformanceTurbopack
  vercel/next.js#100893 · Filter by author vjeux opened on Oct 29, 2026
  1

• Turbopack: client source maps aren’t named <chunk>.js.map, breaking source map uploads

  Turbopack
  Bug

  vercel/next.js#100891 · Filter by author azeuus opened on Oct 29, 2026

• Turbopack: next build fails with "Permission denied (os error 13)" when a dynamic path.join meets an unreadable folder

  OutputTurbopack
  Bug

  vercel/next.js#100870 · Filter by author ivermin1123 opened on Oct 29, 2026

• Build trace collection calls readlink hundreds of thousands of times for the same paths with pnpm

  OutputPerformance
  Bug

  vercel/next.js#100869 · Filter by author shootaroo opened on Oct 29, 2026

• Malformed Next-Router-State-Tree returns 500 instead of 400 on dynamically-rendered routes

  Runtime
  vercel/next.js#100856 · Filter by author Artpardsur opened on Oct 28, 2026

• Standalone server can't find a custom cacheHandler when the app is built from a subfolder (500 on every page, since 15.4.2-canary.15)

  Module ResolutionOutputRuntime
  Bug

  vercel/next.js#100839 · Filter by author GabrielJesusS opened on Oct 28, 2026

• Preview mode throws an exception with Node.js 26

  Pages Router
  Bug

  vercel/next.js#100834 · Filter by author TrevorKarjanis opened on Oct 28, 2026

• Regression: Intercepted route does nothing on re-navigation

  Linking and NavigatingParallel & Intercepting Routes
  Bug

  vercel/next.js#100778 · Filter by author contents-engineer opened on Oct 27, 2026
  2

• @next/next/no-head-element is silently skipped when the absolute file path contains app/ (e.g. webapp/, my-app/, Docker /app/)

  Linting
  vercel/next.js#100769 · Filter by author volker-attempto opened on Oct 27, 2026
  1

• Turbopack panics when truncating CSS chunk filenames containing multibyte UTF-8 characters

  Turbopack
  Bug

  vercel/next.js#100750 · Filter by author thomasrognes opened on Oct 26, 2026

• experimental.inlineCss: a Server Action redirect leaves an unused <link rel="preload" as="style"> for the inlined stylesheet

  CSSServer Actions
  vercel/next.js#100734 · Filter by author kikearciniegas opened on Oct 26, 2026
  2

• htmlLimitedBots, App Router, completed Suspense content above 12.8 kB ends up in a hidden <div>.

  MetadataRuntime
  Bug

  vercel/next.js#100730 · Filter by author nlindema opened on Oct 26, 2026
  1