Example Changes

• fix: error handling and loading states in with-apollo-and-redux example: #91457

Misc Changes

• Upgrade React from 172742b4-20260716 to 81e442ea-20260721: #96016
• Fix Turbopack middleware matcher with i18n single locale: #96014
• Improve performance of validating MPA form submissions: #96013
• Enforce serverActions.bodySizeLimit for Server Actions in Edge runtime: #96012
• Set correct origin for internal redirects in custom server: #96011
• Ensure exotic rewrite param values are properly encoded: #96010
• fix(fetch-cache): key fetch(Request, init) by the effective request: #96009
• fix(incremental-cache): byte-exact fetch cache key for binary bodies: #96008
• Validate server reference IDs during manifest lookup: #96007
• fix(next/image): improve performance of detectContentType() : #96006
• Preserve basePath in redirect destinations: #95608
• [ci] Skip passed-tests cache steps for jobs that never run tests: #96001
• docs: add upgrade section to installation and expand AI agents guide: #95861
• docs: fix unstable_cache syntax error: #96002
• Insights: use a single Learn more link in console errors: #95967
• Refine development validation signal handling: #95998
• Include examples of static export tools & GitHub Pages template: #95929
• docs: note the :has() scaling limit in the Interactive apps guide: #95925
• Prevent unhandled rejections when a "use cache" cache handler errors: #95985
• [test] Add coverage for throwing custom "use cache" cache handler: #95984
• docs: clarify layout.js nesting behavior in route groups: #95720
• Fix instant validation blocking navigations: #95939
• [ci] Share a single browser instance across all test suites in a single job: #95589
• [turbopack] Rename turbopackTreeShaking to turbopackModuleFragments: #95978
• cna: use LayoutProps helper in TS layout templates: #95675
• [turbopack] Skip redundant top-level root updates: #95903
• [turbopack] Drop unused exports from a CJS module: #95716
• Turbopack: Simplify parent directory creation retry loop logic: #95835
• Run Rust doctests in CI: #95911
• docs: add 'Set up your editor' to the installation guide: #95928
• fix(cms-contentful): await draftMode() and use Promise<> params type: #95631
• Move outputHashSalt out of experimental: #95840
• Move immutable static assets config option out of experimental: #95351
• [instant] Let dev-server requests bypass the fetch lock: #95761
• Upgrade React from 7023f501-20260714 to 172742b4-20260716: #95901
• Fix Rust doctest failures: #95909
• [turbopack] Clean up server_chunking_context: #95908
• [turbopack] Don't SSR on pages only navigated to through a soft nav: #95539
• Package skills/ as a Claude Code plugin: #95907
• [ci] Avoid apt-get in the next-stats-action Docker image: #95847
• Back/forward set the Nav Inspector back to pending: #95865
• fix(agent-rules): pad managed AGENTS.md block with blank lines: #95892
• Revert "Run more test suites under cacheComponents flag": #95884
• Fix repeated navigations while the Instant Navigation lock is held: #95864
• Run more test suites under cacheComponents flag: #95878
• Unify appShells flag with Partial Prefetching: #95415
• Fix Request Insights span collection: #95818
• Revert "Replay same-document traversals that happen before hydration": #95853
• [ci] Allow running all deploy tests with builds from a private registry: #95784
• [turbopack] Only ship pages-router routes in the client chunk-group bootstrap manifest: #94671
• [turbopack] Inline the chunk group bootstrap in Next.js to drop the per-route runtime: #94666
• [turbopack] Add chunk_group_bootstrap_params and the chunk-loading global to the build manifest: #94663
• [turbopack] Add registerEntry() to handle inline bootstrapping: #94664
• [turbopack] Add inline_chunk_group_bootstrap to BrowserChunkingContext and chunk_group_bootstrap_params to ChunkGroupResult: #94661
• [turbopack] Create a chunk_group_bootstrap_params() function: #94631
• [turbopack] Create a shared asset with browser runtime code: #94586
• Turbopack: trace externals imported only by server actions: #95824
• [turbopack] Generate component chunks for each merged group to increase cache hits: #95261
• Exclude stale under 5 minutes from app shells: #95833
• docs: remove experimental @next/routing note: #94903
• [turbopack] Tell agents not to mention next.config.js options: #95825
• chore: Remove stale build warning: #95813
• Replay same-document traversals that happen before hydration: #95682
• docs: cssChunking graph option: #95693
• [Bench] Extend bench app to have realistic client chunk counts: #95814
• Add more realistic bench fixtures: #95807
• Fix Request Insights subscription initialization: #95794
• Model async userland loading in app routes as a state machine: #95791
• Preserve init errors from async route modules: #95799
• Fix cache warming and static params for metadata images with top-level await: #95790
• Only track pending imports for real promises: #95789
• Support metadata routes in --debug-build-paths: #95788
• Respect NEXT_HASH_SALT for server side assetsHashes: #95738
• telemetry: add agentName to anonymous metadata: #95586
• [turbopack] Optimize the implementation of AutoMap/AutoSet : #95694
• Better support the CLI spinner when running the TSC CLI: #95753
• Upgrade React from 5123b063-20260708 to 7023f501-20260714: #95782
• docs: add route-side URL data audit to the Partial Prefetching adoption guide: #95389
• docs: revalidateTag with expire zero, for route handlers: #95760
• request insights: add DevTools request panel (5/5): #93978
• docs: Improve immutable static docs: #95752
• Add React sync development skill: #95620
• docs: useSearchParams example stray link: #95759
• Improve the NFT error message and ignore comment handling: #95144
• Upgrade to swc 73: #95731
• [turbopack] Switch make_production_chunks to use floats: #95749
• Fix termination handling: #95692
• Restore canary version 16.3.0-canary.84 after v16.3.0-preview.6 preview release

Credits

Huge thanks to @vercel-release-bot, @eps1lon, @ZaforAbdullah, @gaojude, @aurorascharff, @icyJoseph, @timneutkens, @WildChargerTV, @ankurdotio, @bgw, @sampoder, @marcoshernanz, @manoraj, @mischnic, @acdlite, @gaearon, @gnoff, @andrewimm, @lukesandberg, and @feedthejim for helping!