next

Core Changes

• Upgrade React from f93b9fd4-20251217 to 65eec428-20251218: #87323
• Turbopack: Create junction points instead of symlinks on Windows: #87606
• Turbopack: Symlink handling follow-up: #87637
• Add experimental routing package for resolving adapter routes: #86404
• Ensure outputs are correct with cache components in deployment adapters: #87018
• Move off of deprecated url.parse: #87257
• [strict-route-types] Add experimental.strictRouteTypes config: #87378
• misc: fix type check log for CI envs: #87838
• fix: revalidateTag with profile should not trigger client cache invalidation: #88069
• chore: warn when running tests against stale build: #88001
• Redesign default error pages with cleaner, more user-friendly UI: #87988
• dx: avoid next-env.d.ts change in dev: #88103
• prevent browser cache from using stale RSC responses from previous builds: #86554
• [strict-route-types] Typecheck App Router page props: #87386
• [strict-route-types] Enforce common React Component return types in App Router: #87389
• [strict-route-types] Switch to satisfies when validating page and route modules: #87398
• [strict-route-types] Don't reject number in config.api.bodyParser.sizeLimit when validating route: #87633
• Revert "dx: avoid next-env.d.ts change in dev": #88153
• [strict-route-types] Typecheck pages router routes in absence of App Router: #87628
• [strict-route-types] Ensure cache profiles and routes are type-checked even if .next is excluded: #87768
• add compilation error for taint when not enabled: #88173
• feat(next/image)!: add images.maximumResponseBody config: #88183
• Add maximum size limit for postponed body parsing: #88175
• metadata: use fixed segment in dynamic routes with static metadata files: #88113
• feat: add --experimental-cpu-prof flag for dev, build, and start: #87946
• Add experimental option to use no-cache instead of no-store in dev: #88182
• fix overlay frames cannot be opened sometimes: #88210
• Handle pnpm-workspace.yaml while searching for monorepo root: #74818
• Add more debug logs to 'use cache' wrapper: #88219
• Omit unused arguments from 'use cache' function calls: #86920
• Only log pending revalidates... debug log if applicable: #88221
• fix(next/image): bump sharp@0.34.5: #88238
• Disallow javascript urls in router methods and redirects: #88185
• Fix relative same host redirects in node middleware: #88253
• Remove loadConfig from main development process, pass value from child process: #88230
• Update deploy adapters outputs and handler interfaces for node and edge: #88247
• Move Ready in time before handler initialization: #88235
• next/image: support custom cache handlers: #88248
• feat: add Claude Code plugin marketplace with Cache Components skill: #87993
• refactor: consolidate PPR into cacheComponents architecture: #88243
• Turbopack: include fewer traced files for standalone: #88322
• feat(turbopack): add resolve plugin condition variant of Always and Never: #88190
• perf: use length = 0 to clear the logging array: #88244
• Time logs: Show full millisecond instead of 1 decimal: #88313
• [turbopack] Enable inferring module side effects by default: #87216
• Track search string as part of "refresh state": #87203
• Pass RouteTree into navigation function: #87256
• Read from segment cache unknown routes: #87293
• Pass loading boundary as part of RSC data: #87825
• Revert "refactor: consolidate PPR into cacheComponents architecture (#88243)": #88421
• fix: support TypeScript noUncheckedSideEffectImports for CSS imports: #88199
• Don't import typescript at runtime: #88321
• fix: use RDC for server action requests: #88129
• Warn when overriding Cache-Control header on /_next/ routes: #88353
• [prebuilt-skew-protection] feat: adding in automatic deploymentId: #88012
• Revert "[prebuilt-skew-protection] feat: adding in automatic deploymentId": #88449
• Turbopack: Update reqwest, remove experimental system TLS feature: #88290
• Revert "prevent browser cache from using stale RSC responses from pre…: #88457
• Turbopack: retain loader tree order for metadata: #88487
• Turbopack: more dead code: #88505
• fix(build): prevent route handler manifests from inheriting unrelated client components: #88419
• Upgrade React from 65eec428-20251218 to 3e1abcc8-20260113: #88530
• Better typesafety for interopDefault: #88486
• keep next-env.d.s unchanged between dev and build: #88428
• Remove sibling caches from CacheNode tree: #87991
• Upgrade React from 3e1abcc8-20260113 to 4a3d993e-20260114: #88547
• Finish deleting Mutable from router implementation: #88046
• fetch(next/image): reduce maximumResponseBody from 300MB to 50MB: #88588
• [CC] Fix dev validation error from server action bound args: #88600
• Fix incorrect 'Ready in' time for next start: #88589
• feat: server action logging: #88277
• Log browser error and warnings in terminal: #88352
• Upgrade React from 4a3d993e-20260114 to bef88f7c-20260116: #88649
• fix: make RedirectType constant properties literal types: #88653
• Turbopack: add support for matching loaders on resource queries: #88644
• fix: capture promisified setImmediate separately: #88346
• fix: setImmediate[util.promisify.custom] access fails in edge runtime: #88685
• Fix --debug-build-paths bracket escaping for glob patterns: #88660
• Add negation pattern support to --debug-build-paths: #88654
• Only filter next config if experimental flag is enabled: #88733
• [Devtool Indicator] Fix cross alignment: #88664
• Turbopack: don't use build id for pages router client-side manifests: #88641
• Allow inspecting server with next start --inspect: #88744
• Turbopack: Add --debug-build-paths support to filter routes: #88655
• Upgrade React from bef88f7c-20260116 to 41b3e9a6-20260119: #88756
• Use rewritten pathname for implicit cache tags: #88732
• Upgrade React from 41b3e9a6-20260119 to d2908752-20260119: #88774
• Add experimental_gesturePush to App Router: #88776
• Rename rewroteURL to rewrittenPathname in request metadata: #88751
• Simplify getImplicitTags to accept pathname instead of url object: #88753
• Add NEXT_DEPLOYMENT_ID global: #86738
• Turbopack: remove deployment id suffix from client reference manifest chunks: #88741
• Inject <html data-dpl-id> and don't inline it into JS anymore: #88761
• [metadata] match the Metadata and ResolvedMetadata type: #88739
• Reuse bfcache data during Full prefetches: #88606
• Embed static sibling info in route tree: #88692
• Fix revalidatePath with params and trailing slash when deployed: #88623
• fix: preserve cache behavior for PPR fallback shells with root params: #88556
• Upgrade React from d2908752-20260119 to b546603b-20260121: #88860
• stabilize browser log forward options: #88857
• [devtools] Wrap long file names of stack frames in the error overlay: #88886
• [devtools] Fix notch coloring of error overlay in forced colors mode: #88892
• Remove deploymentId from App Router RenderOptsPartial: #88866
• feat: implement LRU cache with invocation ID scoping for minimal mode response cache: #88509
• [prebuilt-skew-protection] feat: adding in automatic deploymentId: #88496
• [devtool] Add hydration diff indicator for diff lines: #88919
• Revert "[prebuilt-skew-protection] feat: adding in automatic deploymentId": #88942
• [turbopack] add task type infromation to the print_cache_item_size feature: #88925
• Upgrade React from b546603b-20260121 to 24d8716e-20260123: #88963
• Turbopack: add ?dpl= to all asset urls returned by Turbopack: #88828
• feat(next-codemod): add agents-md command for AI coding agents: #88961
• Update font data: #88975
• Improve agents-md prompt to force doc retrieval: #88997
• [Reapply] Add useEffectEvent to disallowed React APIs in Server Components: #88985
• Apply fixes for onBuildComplete and route module: #88831
• Rename renderOpts.nextExport to isBuildTimePrerendering: #88951
• docs: fix typos in README.mds: #89022
• refactor: consume global-error from loader tree: #88437
• Fix chunk loading when using __turbopack_load_by_url__ with query: #88899
• [mcp] change the mcp endpoint response to JSON: #88911
• Reapply "[turbopack] Add bundling support for worker_threads" (#88725): #88967
• fix: ensure LRU cache items have minimum size of 1 to prevent unbounded growth: #89040
• Upgrade React from 24d8716e-20260123 to 8c34556c-20260126: #89066
• Use null-prototype objects in server actions manifests: #89069
• Re-enable types-and-precompiled: #89070
• Apply segment changes to adapters outputs: #89072
• Improve no response route handler error: #89036
• Limit number of server action arguments to 1000: #89068
• [prebuilt-skew-protection] feat: adding in automatic deploymentId: #88958
• Decouple route stale time from segment-level data: #88834
• Decouple route and segment cache lifecycles: #88989
• [ci] Silence baseline-browser-mapping warnings: #89175
• [Cache Components] Prevent streaming fetch calls from hanging in dev: #89171
• React types update: #89110
• [nextjs] feat: removing length requirement: #89173
• add GPTBot to matcher for known bots: #89188
• Ensure .md licenses are included in vendored packages: #89201
• Switch development log item format as JSON: #89168
• IsolatedDevBuild flag removal: #89167
• fix: coerce HEAD to GET for internal images: #84180
• Upgrade React from 10680271-20260126 to 230772f9-20260128: #89250
• Upgrade tar used to extract SWC binary : #89158
• Sort prerender manifest routes: #89246
• Track vary params for segments without server-side param access: #88998
• Optimistic routing: client-side route prediction: #88965
• Keep pages/404.js to be able to dynamically render it anyway: #89263
• fix: fully static pages should emit & serve static rsc payloads: #89202
• fix: CSRF origin matching should be case-insensitive: #89127
• fix(build): format runAfterProductionCompile duration as human-readable time: #89232
• fix(router): support BigInt in query parameters: #89213
• Update font data: #89200
• Update font data: #89272
• Turbopack: add support for contentType condition for webpack loaders: #89156
• Revert "fix(router): support BigInt in query parameters": #89283
• Track vary params during static prerendering: #89267
• Improve lock dir error message: #89119
• Ensures browserslist doesn't issue outdated warnings for baseline-browser-mapping: #89287
• Replace build id in Pages data routes with deployment id: #88959
• Upgrade React from 230772f9-20260128 to da641178-20260129: #89301
• Inline handler dependencies instead of tracing: #89269
• Turbopack: add rules.*.type config to allow changing the type of a module: #88788
• Add experimental.varyParams feature flag: #89307
• Fix/zlib mem node: #89099
• Revert "Replace build id in Pages data routes with deployment id (#88959)": #89323
• Turbopack: Rename crates/napi to crates/next-napi-bindings and update crate name: #89314
• feat: detect @typescript/native-preview as alternative TypeScript compiler: #89149
• Revert "Fix/zlib mem node": #89322
• Turbopack: FreeVarReference::ReportUsage: #89302
• Make Server Function logging opt-in via logging.serverFunctions: #89321
• Restore default-enabled Server Function logging: #89407
• Re-add build-complete traces for webpack: #89402
• Skip Server Function logging for 'use cache' functions: #89408
• Replace flight navigation build id field with header: #88855
• Upgrade React from da641178-20260129 to ed4bd540-20260202: #89401
• Upgrade React from ed4bd540-20260202 to b1533b03-20260203: #89444
• Upgrade React from b1533b03-20260203 to 3e00319b-20260203: #89449
• Rename CACHE_ONE_YEAR for clarity and fix usage: #89450
• [Codemod] Fix agents-md on Windows: #89319
• Experimental deferred entries handling: #88347
• Add experimental.reportSystemEnvInlining for Turbopack: #89304
• fix: use signal-based exit codes to prevent inspector blocking exit: #89351
• Add Instant Navigation Testing API: #89465
• Support MPA navigations in instant(): #89469
• Handle Pages data route skew with deployment id header, take 2: #89325
• Include owner stack for forwarded errors if available: #89493
• [CC] Rename "unstable_prefetch" to "unstable_instant": #89448
• Ensure module contexts are always included in adapter traces: #89508
• Don't insert build id comment in HTML: #89478
• Clarify type checking error message: #89525
• Require explicit cacheLife on outer "use cache" when nesting short-lived caches: #89481
• [Instant] Instant validation in Dev: #89077
• Upgrade React from 3e00319b-20260203 to 95ffd6cd-20260205: #89550
• Turbpopack: fix is_persistent_caching_enabled: #89533
• Fix a small doc typo: #89553
• Ensure _middleware is consistent in adapter for name/id: #89559
• Ensure Errors with deep causal chains respect inspect depth: #89594
• refactor: extract route discovery into unified discoverRoutes() API: #88971
• Ensure static metadata are static outputs for adapters: #89574
• Resolve local variable references in error code SWC plugin: #89596
• Turbopack: Add --experimental-server-fast-refresh CLI flag: #89274
• Fix deployment id header when proxying: #89593
• fix: deprecated util._extend: #89614
• Fix missing non-deferred turbopack build items: #89616
• Revert "Ensure _middleware is consistent in adapter for name/id": #89624
• Omit unused arguments for server actions: #89651
• Upgrade React from 95ffd6cd-20260205 to 2dd9b7cf-20260208: #89681
• Include AggregateError.errors in terminal output: #88999
• fix(image): findClosestQuality returns 0 for low quality values: #89621
• Upgrade React from 2dd9b7cf-20260208 to 272441a9-20260209: #89722
• Avoid using unclosing prefetch streams in the browser: #89610
• Pass shouldCache to all manifest loading calls: #89713
• Add 2nd cloned body to FinalizationRegistry. Only used RuntimeStyles component for webpack: #88577
• Tracing: trace render times as render-path: #89763
• Turbopack: Server HMR infrastructure: #88870
• Turbopack: Reorganize runtime files into shared/runtime directory: #89461
• [Instant] Validation on client navs: #89777
• Turbopack: extract core hmr client logic into shared runtime: #88912
• Turbopack: Fix slow filesystem benchmark warning for next dev: #89798
• Add turbopackIgnoreIssue config to suppress Turbopack warnings: #89682
• Add support for with type: "text" under a new experimental flag, following what webpack did: #89560
• Remove unused devtools code handling React without use: #89793
• [devtools] Wrap overlay in Activity: #89818
• Add CSS URL deployment ID suffix support: #89771
• Fix cascading LRU eviction during prefetch batches: #89766
• Refactor prerenderManifest passing: #89765
• [AI] Ship bundled docs in next and generate AGENTS.md in create-next-app: #89850
• Turbopack: Implement server hmr in nodejs dev runtime: #89130
• Allow sitemap.ts and sitemap/page.tsx to coexist in Turbopack: #89789
• [fragment-scroll] Cleanup scroll and focus restoration in layout router: #83110
• [fragment-scroll] Add experimental.appNewScrollHandler: #83107
• [Instant] Fix crash with search params: #89922
• Fix memory leak in dev mode caused by fast-set-immediate: #89779
• Trace upload: include experimental flag states: #89845
• Upgrade React from 272441a9-20260209 to 6066c782-20260212: #89923
• Add a better error message for when turbopack cannot be loaded: #89633
• fix: support multiple icon formats with same base name (icon.png + icon.svg): #89504
• Turbopack: Move turbopackIgnoreIssue from experimental to turbopack.ignoreIssue: #89817
• Build with dev runtimes when --debug-prerender is set: #89834
• Append deployment id query string for next-font: #89960
• Fix parallel routes with deferred entries: #89967
• Rename node extension utils for clarity: #89970
• Model abandoning by signal: #89971
• Fix missing incremental cache in middleware unstable_cache: #89980
• Run fast immediates during prerender abort to fix flaky I/O stack traces: #89969
• [fragment-scroll] Ensure hoisted elements don't break scroll-to-top on page navigations: #83108
• dx: Include path count in export error message: #89333
• fix(agents-md): use require.resolve() to get the installed next version: #89166
• docs: agent skills, pr-status script, and AGENTS.md updates (1/8): #89857
• Ignore prefetch={true} on Links to routes with instant: #90061
• Expand deferred entries test suite and fix turbopack build: #90057
• Use StageController for runtime prerendering: #89972
• Improve task pipelining: #90065
• fix(next/legacy/image): add deployment id (dpl) query string support: #89956
• Cache expected missing manifest read: #89908
• Use for...in instead of Object.keys for parallelRouteKey traversal: #89905
• [Instant] allow non-blocking dynamic holes and errors in shared parents: #89875
• Move prefetch hints from CacheNodeSeedData to FlightRouterState: #90066
• [Instant] Don't block on client APIs that wouldn't block in the browser: #89924
• [devtools] Add support for error causes in the dev overlay: #90108
• Unify runInSequentialTasks across all sequential task work: #89978
• Cleanup all stage promises on abort: #89984
• segment cache: fix segment cache normalizer: #90111
• Handle null history.state in client-side router popstate handler: #90083
• Don't parse default postponedsizelimit: #89906
• Turbopack: handle invalid RSC imports via importmap: #88146
• [create-next-app] Improve AGENTS.md prompt wording: #90118
• ensure maxPostponedStateSize is always respected: #90060
• Upgrade React from 6066c782-20260212 to 4842fbea-20260217: #90144
• [fragment-scroll] Stop focusing the first focusable host descendant: #89903
• fix: normalize loopback only in hostname: #90158
• Only error for sync IO after runtime in segments that would be runtime prefetched: #89979
• [refactor] Replace runtime prefetch sentinel transform stream: #90160
• fix: use Buffer.indexOf in uint8array helpers for faster byte scanning (3/8): #89864
• Automatically build and clear native build when running pnpm build: #89819
• fix(cache): DCE to avoid pulling server internals into browser bundles (4/8): #89865
• Attach active src route to next global: #90171
• Fix OTEL propagation and add direct entrypoint e2e coverage: #90181
• Use cookie as sole protocol for instant navigation testing: #89871
• Simplify metadata tag rendering to flat imperative style: #90209
• Prevent unhandled rejection filter from being bundled into the server runtime: #90205
• [Instant] speed up test instant-validation suite: #90214
• Turbopack: fix static asset skew protection for edge and prerenders: #90238
• Remove workStore from params/searchParams/pathname function signatures: #90215
• Remove workStore from metadata resolution chain: #90217
• [Instant] export "Instant" config type: #90257
• Replace getDynamicParamFromSegment closure with interpolatedParams in metadata: #90249
• [Instant] Dev Tools toggle for Instant Navigation Mode: #90222
• [instant] Include declaration location of instant config in validation errors: #90169
• Turbopack: rename ServerPaths to AssetPaths: #90234
• feat(next/image): add lru disk cache and images.maximumDiskCacheSize: #89963
• Revert "Handle null history.state in client-side router popstate handler": #90268
• [devtools] Omit empty looking error messages: #90256
• Fix runtime prefetch isPartial byte stripping when deployed: #90272
• Upgrade React from 2ba30655-20260219 to ab18f33d-20260220: #90279
• validate sync IO in generateMetadata according to Page's prefetchable status: #90164
• Turbopack: support Subresource Integrity : #90152
• segment cache: add test for passing unawaited promise to context provider: #89339
• Fix route.replace crash with --debug-build-paths: #90312
• refactor(app-render): extract stream-ops and debug-channel modules (5/8): #89858
• [turbopack] Consider ignoreList of 3rd party sourcemaps in Redbox: #90317
• [turbopack] Remove obsolete is_internal field : #90329
• Fix: Image component ignores images.qualities in Jest environment: #89536
• Revert "keep next-env.d.s unchanged between dev and build": #90384
• Fix route cache keying for unprefetched navigations: #90400
• Add support for Next.js error telemetry for AggregateError: #90391
• Fix config.reactProductionProfiling for Webpack: #90430
• next-image: fix deployment id handling for unoptimized: #90416
• [ci] Fix input cache keys for tasks referencing rust-toolchain: #90442
• next-image: fix dpl handling with unicode: #90420
• Upgrade React from ab18f33d-20260220 to c0060cf2-20260224: #90452
• [ci] Stop using Turbopack tests in native binary build cache keys: #90449
• [Instant] Validate blocking head: #89539
• Turbopack: Fix experimental server hmr for pages router: #90398
• Fix params leaking into instant navigation shell in dev: #90455
• Limit build workers to pages+1: #90475
• fix: sanitize worker args for worker_threads compatibility: #90506
• Fix varyParams tracking for optional catch-all params with no value: #90496
• Don't start worker for Typescript when only doing config validation: #90504
• [Instant] Fix loading.js not being counted as a suspense boundary: #90292
• [ci] Crash if next-swc could not be loaded when NEXT_TEST_NATIVE_DIR is specified: #90387
• Fix: server-patch retry preserves push/replace intent of suspended transitions: #90533
• Cached Navigations: Serve cached segments instantly on repeat visits: #90223
• Throw when unstable_instant is used in Client Component: #90396
• [test] Fix jest-haste-map warnings: #82995
• Don't require collect-build-traces with Turbopack: #90586
• Enable experimental.reactDebugChannel by default: #90310
• Less dynamic pages manifest path: #90581
• Upgrade React from c0060cf2-20260224 to 98ce535f-20260226: #90605
• Turbopack: Add Next.js version to "initialize project" trace span: #90545
• [devtools] Stop sending codeframes for ignored frames: #90577
• Allow reset() from user's global-error: #89684
• Fix per-segment prefetching for initial loads with Cache Components: #90610
• Add unstable_retry() to error.js: #89685
• Fix edge index page _next/data route: #90611
• Turbopack server hmr: Implement restart event: #90550
• Turbopack: Panic if a top-level task attempts an eventually consistent read: #89735
• Fix middleware case with adapters: #90624
• refactor(turbopack-node): support execution by napi and worker_threads: #86266
• [instant] Allow providing user feedback for blocking route errors: #90498
• Allow Node.js' experimental inspector flags in next dev and next build: #90603
• tests: Assert dpl query string in all tests for Turbopack: #90592
• [instant] Don't add debug stack to random unstable_instant exports: #90273
• Adapter: STATIC_FILE.immutableHash: #90045
• Turbopack: experimental.immutableAssetToken: #88607
• remove runInContext callbacks from stream-ops: #90609
• Turbopack: restrict server HMR to app pages: #90663
• Turbopack: Allow turbopack-node backend to be swapped at runtime using an experimental config option: #90671
• Turbopack: Revert default loader runtime backend to child processes: #90675
• [devtools] Stop blocking overlay on error details copy: #90698
• feat: provide nextVersion to modifyConfig adapter hook: #90735
• experimental.prefetchInlining: bundle segment prefetches into a single response: #90555
• instant(): fix cookie handling for fresh page loads: #90613
• fix(turbopack): use posix.join for client URL manifest paths on Windows: #90700
• Turbopack: improve cell order lint rule for ReadRef::cell: #88500
• Change names of logged times: #90688
• [devtools] Bump React Compiler version to latest experimental: #90763
• Skip writeToBfCache without window: #90771
• docs: error component unstable_retry(): #89732
• Stub adapterPath with experimental.runtimeServerDeploymentId: #90790
• Conditionally load uncommon paths: #90514
• Refactor extractExportedConstValue to return { value } | null instead of throwing: #90510
• Reimplement code frame rendering in native code: #85592
• [devtools] Bundle for same target as Next.js browser runtime: #90762
• Upgrade React from 98ce535f-20260226 to 4cc5b7a9-20260303: #90827
• Add transitionTypes prop to next/link: #90701
• [otel] fix missing http.route attribute: #90832
• [otel] set parent span name: #90840
• Update default error pages: #90469
• Replace PPR config helpers with cacheComponents checks: #90704
• Cached Navigations: Cache visited fully static pages in the segment cache: #90306
• Remove isRoutePPREnabled from render options and delete dead PPR branch: #90713
• Use page extensions in next-swc transforms applying to pages: #90650
• Cached Navigations: Cache static stage of partially static initial HTML: #90539
• Remove PrerenderStorePPR type and all prerender-ppr switch cases: #90721
• Clean up legacy PPR references in test fixtures: #90725
• Cached Navigations: Cache runtime stage data from navigation requests: #90666
• Remove legacy PPR postpone cluster: #90726
• partial fallbacks: add adapter flag: #90395
• Address review feedback: extract modules, clean up imports: #90813
• Add trace spans for turbopack persistence in .next/trace: #90397
• Upgrade React from 4cc5b7a9-20260303 to 3bc2d414-20260304: #90876
• Fix prefetch inlining build failure with dynamic routes: #90899
• Update @vercel/og and satori vendors: #90933
• Batch require cache deletion to avoid quadratic scanning: #90625
• Revert legacy PPR removal: #90948
• Rewrite instant validation to use depth-based URL boundary discovery: #90905
• Add experimental.cachedNavigations feature flag: #90928
• preserve allowQuery for partial fallback shells: #90887
• Cache runtime data for partially static pages on initial load (resume): #90888
• re-introduce partial fallback -> route upgrading: #89063
• fix: Don't fall through to catch-all when static child subtree doesn't match: #90957
• Bump Node heap limit for lint-no-typescript to avoid OOM in CI: #90996
• Upgrade React from 3bc2d414-20260304 to 46103596-20260305: #90989
• fix: trigger MPA navigation for server action redirects with build ID mismatch: #89946
• Improve webpack loader error messages and handling: #89698
• Turbopack: implement module.hot.accept(deps, cb) and module.hot.decline(deps): #90443
• partial fallbacks: gate behind experimental flag: #91123
• fix: app-page URL normalization: #91121
• Updates to Instant Navs devtools functionality: #91005
• Trace upload: add git and environment info: #91124
• fix(css): rewrite MiniCssExtractPlugin insert function to ES5 to support legacy browsers: #90556
• Revert "Address review feedback: extract modules, clean up imports": #91159
• [turbopack] Render code frames on the turbopack side: #90534
• Add experimental.lightningCssFeatures config option: #90901
• fix: correct appPaths sort order for parallel routes with route groups: #91160
• Tracing: tag spans as failed if their runner fn fails: #91206
• Adds a Start button to the Instant Navs panel to initiate inspection …: #91216
• Preserve RSC metadata in Proxy request with skipProxyUrlNormalize: #91213
• [cna] Bump picocolors to 1.1.1: #91252
• [Instant] Build-time validation: #90964
• [Instant] fix instant config suggested by editor plugin: #91262
• chore(deps): Bump tar from 7.5.7 to 7.5.11 in /packages/next: #91233
• Upgrade React from 46103596-20260305 to 5e9eedb5-20260312: #91272
• feat(server): expose requestMeta router helpers and merge fallback context: #91235
• [Instant] Show owner stack for validation-blocking errors: #91277
• Hydrate page loads during instant navigation testing: #91207
• perf: use Buffer.from for base64 encoding of binary Flight data: #91221
• Skip dimming when --inspect is used: #91271
• Respect generateStaticParams in instant navigation shell: #91316
• [Prefetch Inlining] Generate size-based hints on server: #90891
• Wire cache handlers in edge paths and add e2e regression coverage: #91236
• Expose edge runtime fields in build-complete: #91239
• [turbopack] Remove turbo_tasks::function from ModuleReference getters: #91229
• [Turbopack] write route bundle stats to .next/diagnostics/route-bundle-stats.json: #90949
• partial fallbacks: only upgrade shells with remaining prerenderable params: #91158
• partial fallbacks: complete generic shells into more specific shells: #91231
• Add eval and docs for unstable_instant: #91334
• Simplify scroll restoration with shared ScrollRef on CacheNode: #91348
• fix: test-cargo-unit CI job timing out since LTO was enabled: #91424
• fix(build): don't block SSG on telemetry flush, add persistence spans to trace-build: #91335
• Ready in X - prints wrong timing on dev server restart: #90874
• Show generated code from loaders in parse error messages: #89898
• Remove unused layer from server actions manifest: #91425
• Support accessing root params in generateStaticParams: #91189
• Avoid undefined outer work unit store in "use cache": #91190
• Add unstable_dynamicStaleTime route segment config: #91437
• [next-playwright] Use unique cookie values for instant navigation testing lock: #91250
• Add unstable_catchError() API for component-level error recovery: #89688
• docs(turbopack): Fix all warnings in cargo doc --no-deps --workspace, and run rustdoc as part of our CI checks: #91339
• Patch improvements into http-proxy lib: #91480
• Disallow Server Action submissions from privacy-sensitive contexts: #91478
• Fix startup warmup for empty-shell app route cache: #91470
• Fix unstable_catchError type inference for fallback props: #91485
• Support accessing root params in "use cache" functions: #91191
• Fix inconsistent cache life/tags propagation for cache handler hits: #91454
• Upgrade React from 5e9eedb5-20260312 to c80a0750-20260312: #91324
• Error when accessing undefined root params in generateStaticParams: #91519
• Buffer prefetch response before passing to Flight client: #91487
• [Segment Cache] Always upsert on prefetch completion: #91488
• Track vary params during runtime prefetches: #89297
• [react-sync] Allow locking in manual sync: #91509
• Remove devCacheControlNoCache experimental option (hard-code no-cache): #91503
• fix allowedDevOrigins for no-cors requests: #91506
• Remove webpack stats generation from Turbopack: #91515
• Upgrade React from c80a0750-20260312 to 3f0b9e61-20260317: #91522
• Move adapterPath from experimental to stable top-level config: #91535
• block disallowed dev origins by default: #91507
• Turbopack: Merge release-with-assertions-no-lto profile into release-with-assertions: #91530
• improve allowedDevOrigins error: #91521
• Add group depth tracking to instant validation boundary discovery: #91208

Documentation Changes

• docs: next experimental-analyze: #87272
• docs: use cache private redo: #87111
• docs: fix highlight in 05-server-and-client-components.mdx: #87347
• Guide: Update Optimizing Package Bundling to include new Bundle Analyzer: #87246
• docs: generateMetadata and generateViewport w/ CC: #87218
• docs: tweaks/fixes to papercuts: #87445
• docs: fix typos and clarify examples in Cache Components guide: #87530
• [docs] add get_routes in mcp available tools: #88181
• Update generateMetadata in client component error: #88172
• docs: fix CSP example to only include unsafe-eval in development: #88407
• docs: add useSearchParams and useParams documentation for Pages Router: #88429
• docs: fix Pages Router fonts documentation showing App Router examples: #88326
• doc: add details of mcp client integration: #88543
• Turbopack: query conditions in rules follow-ups: #88801
• Docs: Add Next.js Glossary: #88811
• docs: Server functions rename: #86827
• docs: Update Partytown URLs and package reference: #88928
• docs: improve clarity in cache components and server/client docs:

Example Changes

• fix: Change Dockerfile.bun to use group/useradd instead of addgroup/user: #87443
• fix(examples): resolve hydration mismatch in blog-starter: #87703
• Update with-mysql example to Next.js 15, Tailwind 4, Prisma 7: #88475
• chore(examples): remove with-recoil exmaple: #81836
• chore(examples): remove with-tigris example: #81843
• [feat] Added Docker examples for standalone output and export output following best practices: #87069
• Migrate from react-markdown to Streamdown static in EdgeDB example: #86435
• example: restore .next handling for with-docker examples: #90651
• with-docker: add new config file formats: #90731
• example: remove duplicate items in .dockerignore: #91079

Misc Changes

• Turbopack: refactor graph traveral and fix module graph determinism: #87312
• bundle analyzer: remove uncompressed toggle, stabilize top bar ui: #87325
• test: de-flake client-cache deployment tests: #87412
• Revert "Revert "[turbopack] Set liveness of exports based on assignment analysis (#82802)"": #87214
• ci: track runner name on datadog test reports: #87440
• Turbopack: In CI only persist at the end: #87316
• fix: correct quotes in dev script filter in package.json: #87638
• chore: add a missing period to rspack description: #86526
• [test] Move off of as much url.parse as possible: #87286
• Update Rspack production test manifest: #87889
• Update Rspack development test manifest: #87888
• chore(turbo-tasks-malloc): replace mimalloc-rspack to mimalloc: #87815
• fix: normalize CRLF line endings in jscodeshift tests on Windows: #88008
• chore: add Claude Code configuration: #87943
• test: reduce flakiness in opentelemetry test for prod mode: #88102
• Rename CLAUDE.md to AGENTS.md with symlink: #88105
• [turbopack] Populate the names field of sourcemaps:

Credits

Huge thanks to @icyJoseph, @nextjs-bot, @sokra, @Juneezee, @delbaoliveira, @wbinnssmith, @ztanner, @lukesandberg, @bgw, @naveenkarmegam, @Marukome0743, @pji2918, @nathannewyen, @eps1lon, @ijjk, @feedthejim, @vercel-release-bot, @xusd320, @huozhi, @mischnic, @wyattjoh, @styfle, @timneutkens, @unstubbable, @lubieowoce, @gnoff, @acdlite, @Rani367, @andrewimm, @brookemosby, @karlhorky, @kdy1, @mmastrac, @naaa760, @jgeschwendt, @williambout, @SimeonGriggs, @gaojude, @hanzala-sohrab, @dango0812, @msmx-mnakagawa, @davidgolden, @LucianBuzzo, @devjiwonchoi, @alexcarpenter, @jaffarkeikei, @BradErz, @mintydev789, @Suhaib3100, @pavan-sh, @amannn, @fireairforce, @JamBalaya56562, @wheresrhys, @ericrav, @Thomas465xd, @bgub, @Netail, @robert-j-webb, @bencmbrook, @shadcn, @sigmachirality, @abhishekmardiya, @vvscode, @freek-boon-greenberry, @alubbe, @FurryR, @01-binary, @andrewdamelio, @swarnava, @kristiyan-velkov, @haydenbleasel, @rishishanbhag, @tdarthur, @lavanitha, @agneliutkiene, @Mimori256, @pieh, @sleitor, @jantimon, @clicktodev, @mitul-s, @aurorascharff, @shuding, @jonasherr, @thdxg, @kowyo, @samselikoff, @dependabot, @benfavre, @zamadye, @cursor, and @richardjzhang for helping!