Next.js

Next.js

v16.3.0-canary.78

1 day ago

Misc Changes

Add serverComponentsHmrCancellation experimental flag: #95462

Credits

Huge thanks to @unstubbable for helping!

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Next.js

v16.3.0-canary.77

2 days ago

Misc Changes

Avoid unnecessary rendering for validation in dev: #95394
fix: work around SWC compress bug: #95457
docs: Update FormEvent to SubmitEvent in form handling example (deprecated in React 19.2.10+): #95453
Update font data: #95441
Ignore-list internal frames whose source maps chain to original sources: #95448
Type resolved cacheLife profiles, dropping runtime asserts: #95428
Split typeof-window server requires into .browser variants: #95201
Collect modules with browser variants statically: #95200

Credits

Huge thanks to @lubieowoce, @M4cM4rco, @vercel-release-bot, @unstubbable, and @eps1lon for helping!

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Next.js

v16.3.0-canary.76

3 days ago

Misc Changes

Fix navigation getting reverted when a Server Action is in flight: #95391
Fix false-positive nested-cache error for a short default profile: #95373
Skip saving expire: 0 values in the default cache handler in prod: #95363
[ci] Disable mid-stack PR optimization for native PR stacks: #95427
Fix history push getting treated like replace when followed by refresh: #95392
Upgrade React from ec0fca31-20260701 to 3508aee6-20260702: #95410
fix(config): correctly validate cacheHandlers names: #95358
[ci] Actually migrate Turbopack jobs back to ARM: #95386
Recover from blocking routes under Instant Navigation lock when deployed: #95227
Make Instant Navigation Testing full-page loads work when deployed: #95222
Clear a resurrected instant cookie on unlock so a hard reload recovers: #95398
fix: handle prototype-colliding segment names in segment explorer trie: #95403
Prefetch links nearest the top of the document first: #95393
Fix metadata title dropped on soft navigation with Cache Components: #95315
Cache short-expire 'use cache' values across dev reloads: #95362

Credits

Huge thanks to @gaearon, @unstubbable, @bgw, @vercel-release-bot, @Partha-Shankar, @icyJoseph, and @acdlite for helping!

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Next.js

v16.3.0-canary.75

3 days ago

Misc Changes

[cd] Replace the release package with our own GitHub release creation: #95352
[test] Enable deploy tests for the Instant Navigation Testing API suite: #95236
Await reused in-flight prefetch entries under Instant Navigation lock: #95301
[test] Park the blocking-fallback segment on a withheld param: #95300
Make instant() resilient to a leaked navigation-testing cookie: #95375
[ci] Avoid running full CI mid-stack for GH-native stacks, same as we do for Graphite: #95218
Remove 'silence this warning' from instant validation fix output: #95187
fix(turbopack): allow #/ prefixed subpath import specifiers: #94461

Credits

Huge thanks to @eps1lon, @unstubbable, @bgw, @aurorascharff, and @sleitor for helping!

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Next.js

v15.5.20

4 days ago

Contains no changes except publishing @next/swc-wasm-web which was accidentally not published since 15.5.15.

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Next.js

v16.2.10

4 days ago

Contains no changes except publishing @next/swc-wasm-web which was accidentally not published since 16.2.4.

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Next.js

v16.3.0-preview.5

1 week ago

Misc Changes

Restore canary version 16.3.0-canary.66 after v16.3.0-preview.4 preview release
Fix local fonts in statically prerendered ImageResponse metadata route: #95121
docs(root-params): generateStaticParams section and CC requirement: #95073
Surface an error for blocking routes under the Navigation Inspector: #95139
Suppress prefetch={true} warning when route opts out via instant = false: #95099
skill(cc-adoption): recommend next-dev-loop and add build-only path: #95122
docs: server actions guide x-refs: #95143
[turbopack] Create ServiceWorkerChunkingContextOptions in next-core: #94920
instant(): Only render shell, unless prefetch prop is set: #95150
[turbopack] Create ServiceWorkerEntryModule and service_worker_chunk_filename: #94921
[turbopack] Discover ServiceWorkerEntryModules in next-api and compile + serve those service workers: #94922
[cd] Allow forcing a release without new commits: #95136
docs: clarify /_not-found failures and <html> attribute reads under Cache Components: #95163
[PP] Reveal after ShellRuntime when simulating a Shell Prefetch in dev: #95149
Replicate production prefetch shells for instant navigations in dev: #95067
docs: expand io reference: #95147
test: Remove unnecessary dynamic timestamp from instant-validation root layouts: #95105
[next-dev-loop] Fix some papercuts: #95153
Gate the dev Cold cache badge behind an experimental flag: #95169

Credits

Huge thanks to @unstubbable, @icyJoseph, @acdlite, @aurorascharff, @sampoder, @eps1lon, @lubieowoce, and @gaearon for helping!

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Next.js

v16.3.0-preview.4

1 week ago

Misc Changes

[ci] Make automatic native binding install opt-in: #95114

Credits

Huge thanks to @eps1lon for helping!

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Next.js

v16.3.0-canary.67

1 week ago

Misc Changes

Restore canary version 16.3.0-canary.66 after v16.3.0-preview.4 preview release
Fix local fonts in statically prerendered ImageResponse metadata route: #95121
docs(root-params): generateStaticParams section and CC requirement: #95073
Surface an error for blocking routes under the Navigation Inspector: #95139
Suppress prefetch={true} warning when route opts out via instant = false: #95099
skill(cc-adoption): recommend next-dev-loop and add build-only path: #95122

Credits

Huge thanks to @unstubbable, @icyJoseph, @acdlite, and @aurorascharff for helping!

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Next.js

v16.3.0-canary.66

1 week ago

Misc Changes

Revert "Remove legacy PPR codepaths": #95113
dev-overlay: wire Link prefetch={true} Partial Prefetching warning into Insights: #94798
Docs/partial prefetching: #94855
[ci] Make preview tarballs available while new Canaries are being published: #95112
[cd] add ad-hoc preview release cut from canary: #95086
Add missing switch case: #95127
Revert "Add missing switch case": #95129
Fix Navigation Inspector styles in dark mode: #95126
[test] Reorder hmr-intercept-routes test to avoid a reload/refresh race: #95134

Credits

Huge thanks to @eps1lon, @aurorascharff, @icyJoseph, @unstubbable, and @samselikoff for helping!

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Next.js

v16.3.0-canary.65

1 week ago

Misc Changes

docs(cache-components): clarify allow-runtime, sync-IO and instant=false, CLS fallback: #94997
Keep the resolved cache life for cacheMaxMemorySize: 0 caches in dev: #95100
Avoid mutating req.headers when stripping internal headers: #95116

Credits

Huge thanks to @aurorascharff and @unstubbable for helping!

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Next.js

v16.3.0-canary.64

1 week ago

Misc Changes

Consider merging chunks when overlap == 1: #95102
[turbopack] Add support for single-entry chunks: #94727
Turbopack: add TURBOPACK_DEBUG_CSS_CHUNKING env var: #95080
[cd] publish on release tags instead of branch push: #95085

Credits

Huge thanks to @sampoder, @sokra, and @eps1lon for helping!

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Next.js

v16.3.0-canary.63

1 week ago

Misc Changes

Serve ISR fallback shells in response to prefetch requests: #94534
Insights: drop irrelevant fix cards from instant errors: #94926
Navigation inspector UI updates: #94959
skill(next-cache-components-adoption): clarify prereqs: #95082
Turbopack: Delete dead AttachedFileSystem type: #94960
Opt Partial Prefetching routes into the runtime stage of Cached Navs: #95097
Fix #95015 by pulling a fix to scattered-collect: #95098
docs(caching): clarify generateStaticParams prebuild and recommend max for CMS: #95081
Release the instant navs lock without clearing the whole cookie jar: #94947
Compute dev fallback params from the most-specific prerendered route: #95066

Credits

Huge thanks to @acdlite, @aurorascharff, @samselikoff, @bgw, @unstubbable, @lukesandberg, and @icyJoseph for helping!

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Next.js

v16.3.0-canary.62

1 week ago

Misc Changes

[skills] Mark insight-error-page and next-rspack as internal: #95070
Turbopack: Fix log box test on react 18: #95078
Turbopack: Avoid clone when sorting by module file path: #95079
Fix false-positive export const dynamic in Cache Components detection: #95083
docs: add Interactive Apps guide: #94020

Credits

Huge thanks to @gaojude, @bgw, @eps1lon, and @aurorascharff for helping!

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Next.js

v16.3.0-canary.61

1 week ago

Misc Changes

[test] Fix failing determinism test using adapter: #95051
docs: fix typo in slot-missing-default.mdx: #94531
[otel] Correctly set error code attributes for App API routes: #94979
docs: Cache components requires Node.js runtime: #94897
[scripts] Write pnpm overrides for pnpm projects in pack/patch helpers: #94747
docs(authentication): add Auth and streaming, fix code fences and imports: #95056
Statically prerender metadata image routes under Cache Components: #94957
Upgrade React from b1786c31-20260618 to 247fbb45-20260622: #95063
codemod: cache-components-instant-false + next-cache-components-adoption skill: #94941
Remove legacy PPR codepaths: #94955
skill(next-dev-loop): fix --session flag, agent-browser bootstrap, --headed daemon note: #95005
Add a global opt-in for the runtime stage of Cached Navigations: #95064
[turbopack] Rename the edge runtime to the self-contained runtime: #94726
[turbopack] Sort modules in files by path not ID: #95065
skill(next-cache-components-adoption): tune skill to mention app router requirement: #95069

Credits

Huge thanks to @mischnic, @parkhojeong, @icyJoseph, @eps1lon, @aurorascharff, @unstubbable, @vercel-release-bot, and @sampoder for helping!

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Next.js

v16.3.0-canary.60

2 weeks ago

Misc Changes

Remove embedded Claude Code plugin marketplace: #94877

Credits

Huge thanks to @gaojude for helping!

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Next.js

v16.3.0-canary.59

2 weeks ago

Misc Changes

Upgrade to swc 70: #94814
[turbopack] Sort modules in chunks to reduce duplicates: #94961
router instrumentation: refactor client hook dispatch (1/7): #94755
[otel] Add more verbose-mode OTEL spans for App Router: #94894
Enforce route segment configs on metadata routes under Cache Components: #94962
typegen: default to Turbopack: #94952
router instrumentation: add transition start context (2/7): #94766
fix: after(callback) called after response end: #94974
fix: request APIs in promises passed to after() in actions/handlers: #94964

Credits

Huge thanks to @mischnic, @sampoder, @feedthejim, @unstubbable, @wbinnssmith, and @lubieowoce for helping!

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Next.js

v16.3.0-canary.58

2 weeks ago

Misc Changes

Fix dev overlay hydration error ordering: #94555
[turbopack] Retry chunk loading on failure: #94918
Upgrade React from ad78e251-20260616 to b1786c31-20260618: #94951
[ci] Update playwright to 1.61.0: #94871
[cd] reduce size of npm metadata on publish: #94953

Credits

Huge thanks to @timneutkens, @sampoder, @vercel-release-bot, @bgw, and @styfle for helping!

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Next.js

v16.3.0-canary.57

2 weeks ago

Misc Changes

Scope the Cold cache indicator in dev to shell cache misses: #94911
Fix Instant Navs DevTools capture bugs and re-enable its test suite: #94866
docs: fix capitalization of Server and Client Components: #94891
docs: Fix broken link to Node.js Debugging Guide: #93958
docs: fix broken Node.js inspector URL in debugging guide: #94934
examples/with-ably: update to App Router + Ably v2: #94600
docs: clarify sequential data fetching example: #94930
docs: GtK, caching with fetch is opt-in - extended to any method or header included: #94899
[test] Enable metadata-streaming-config for Cache Components: #94936
fix(dev-overlay): correct open-in-editor path when using a src directory: #94775
Fix repoRoot for adapters: #94478

Credits

Huge thanks to @unstubbable, @niketchandivade, @gilest, @jahanzaib-iqbal-dev, @owenpearson, @davidgg, @icyJoseph, @eps1lon, @fhfournier, and @mischnic for helping!

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Next.js

v16.3.0-canary.56

2 weeks ago

Misc Changes

Let LLMs create less noisy and more focused PR descriptions: #94896
Avoid re-logging server-originated errors forwarded from the browser: #94917
[ci] Only install chromium-headless-shell and not chromium: #94882

Credits

Huge thanks to @eps1lon, @unstubbable, and @bgw for helping!

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Next.js

v16.3.0-canary.55

2 weeks ago

Misc Changes

[cd] Continue release train if @next/swc-wasm-* fails to publish: #94912

Credits

Huge thanks to @eps1lon for helping!

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Next.js

v16.3.0-canary.53

2 weeks ago

Misc Changes

pass --locked to cargo binstall: #94834
[ci] Use node-version-file when we already have a repository checkout and reduce hardcoded references to node versions: #94780
[turbopack] Allocate Effects in an arena: #94614
[turbo-tasks] Shrink RawVc to 8 bytes and CellId to 4 bytes: #94792
rust react compiler: detect and build for react 18: #94836
[test] Unflake metadata static routes cache test: #94796
[test] Recover from a leftover build process on test retry: #94797
Properly set response-based OTEL attributes with adapters : #94603
dev-overlay: polish error header layout and instant fix-card chip: #94790
Upgrade React from 43bcbf80-20260603 to d9158919-20260615: #94826
Make cacheMaxMemorySize: 0 and custom cache handlers fast in dev: #94784
[ci] Clean up references to self-hosted runners: #94827
Fix remaining OTEL issues in adapter: #94817
Turbopack: improve NFT warning message: #94854
Add experimental.useExperimentalReact to opt into React's experimental channel: #94861
Turbopack: improve issue printing colors: #94858
[turbopack] Update algebra in chunking algorithm: #94873
[CC] Fix accumulator flushing logic: #94857

Credits

Huge thanks to @lukesandberg, @bgw, @sampoder, @wbinnssmith, @unstubbable, @mischnic, @aurorascharff, @vercel-release-bot, @gaojude, and @lubieowoce for helping!

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Next.js

v16.3.0-canary.52

2 weeks ago

Core Changes

chore: upgrade next-rspack to rspack 2.0: #92222

Misc Changes

docs: Route Handlers to be supported later on: #94705
[ci] Allow "rerun failed jobs" to work up until 5 days for e2e deploy tests: #94812
Fix stale next data API test URL: #94815
Format submillisecond durations as milliseconds: #94813
Instruct agents to keep and commit the generated agent-rules block: #94725
[agents-md] Index bundled docs instead of downloading into .next-docs: #94719
docs: add prefetchInlining config reference: #94650
Move warnOnce imports into statements guarded by process.env.NODE_ENV === 'development': #94781
Expand signature rewriting to allow returning ResolvedVc from turbo task functions: #94772
Move errorOnce imports into statements guarded by process.env.NODE_ENV === 'development': #94782
Add a message to AGENTS.md about super:: imports.: #94733
Turbopack: add experimental React compiler support: #94573

Credits

Huge thanks to @icyJoseph, @eps1lon, @devjiwonchoi, @timneutkens, @gaojude, @ifer47, @sampoder, @lukesandberg, @wbinnssmith, and @SyMind for helping!

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Next.js

v16.3.0-canary.51

3 weeks ago

Misc Changes

Avoid a premature Suspense fallback flash in the streaming dev render: #94783

Credits

Huge thanks to @unstubbable for helping!

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Next.js

v16.3.0-canary.50

3 weeks ago

Misc Changes

[codemod] Write pnpm overrides to pnpm-workspace.yaml on pnpm v11+: #94690
[ci] Always upload canary tarballs from the canary branch: #94557
docs: document non-streamed bot rendering and Cache Components: #94605
[CC] Exclude caches with low stale from static prerenders: #94678
[CC] Rename shellStage to streamReleaseStage: #94749
[turbopack] Drop data while serializing in next build: #94561
[turbopack] Optimize cell_dependency representation: #94717
[turbopack] Use final_read_hint in top level turbo tasks: #94712
refactor: process streaming prerenders more efficiently: #94764
Allow root params in App Shell (client)
fix: this in edge sandbox setTimeout/setInterval: #94754

Credits

Huge thanks to @eps1lon, @icyJoseph, @lubieowoce, and @lukesandberg for helping!

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Next.js

v16.3.0-canary.49

3 weeks ago

Misc Changes

[turbopack] Rename variables in path_join and add tests: #94625
Warn on prefetch={true} navigation without Partial Prefetching (dev): #94672
Serve stale 'use cache' entries in the dev server until they expire: #94662
Re-fetch dynamic content on navigation with partialPrefetching enabled: #94655
docs: expand the Cache Components migration guide: #94649
Add Owner Stack to "prefetch={true} navigation without Partial Prefetching" warning: #94683
[tubopack] migrate rcstr! to use scattered collect: #94498
Strip internal dev request-id headers from userland headers(): #94703
Persist 'use cache: private' entries in dev: #94694
[App Shells] refactor instant-validation to make adding new stages easier: #94711
migrate turbo-tasks to scattered collect: #94503
[CC] refactor staged rendering codepaths in params/searchParams: #94718
[App Shells] Track whether shell prefetch used session data: #94484
Treat empty resume bodies as dynamic render requests: #94729

Credits

Huge thanks to @sampoder, @acdlite, @unstubbable, @icyJoseph, @eps1lon, @lukesandberg, @lubieowoce, and @gnoff for helping!

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Next.js

v16.3.0-preview.3

3 weeks ago

Misc Changes

[turbopack] Enable turbopackFileSystemCacheForBuild by default in non-stable releases: #94616
[16.3.x-preview] Setup release branch: #94594
[cd] Publish preview release with @preview NPM dist-tag: #94619
[cd] Ensure wasm binaries get tagged properly: #94621

Credits

Huge thanks to @lukesandberg and @eps1lon for helping!

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Next.js

v16.3.0-canary.41

1 month ago

Misc Changes

make TaskInput::is_resolved inlinable everywhere: #94213
[App Shells] staged shell rendering in cached navs: #94441
[App Shells] staged shell rendering during build: #94442
docs: fix typos in testing.md: #94446
Keep the dev React debug channel on Node streams end to end: #94433
test: pin material-ui link fixture dependencies: #94354
Revert "Keep the dev React debug channel on Node streams end to end": #94459
[turbopack] Only ship top-level async support in the runtime when needed: #94376
Reland the debug channel on native Node streams, fixed for React 18: #94462
Allow unstable_retry from TS plugin check in Next.js Error APIs: #94460
docs: fix typos in contribution guide: #94375

Credits

Huge thanks to @lukesandberg, @lubieowoce, @RazinShafayet2007, @unstubbable, @timneutkens, @eps1lon, @sampoder, and @devjiwonchoi for helping!

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Next.js

v16.3.0-canary.40

1 month ago

Misc Changes

docs: add GitHub SSH authentication guidance: #94360
Deprecate undocumented custom server methods: #94348
Trace cacheHandler and cacheHandlers when using adapters: #94197
refactor: make stage advancing logic more generic: #94349
docs: document Cache Components behavior for navigation hooks: #94387
fix: build hangs if sync IO aborts before root chunk is flushed: #94365
refactor: make early/late checks stricter: #94358
refactor: remove delayUntilRuntimeStage: #94350
DiskFileSystem: store Effect full_path as Arc<Path>: #94332
refactor: indicate which stage is the last stage in staged prerenders: #94430
[CC] add shell stages: #94438
instant: prompts on all fix cards, [group]-tagged CLI bullets, new docs slugs: #94017
[turbopack] Add BumpVec (vector implementation that takes a Bump): #94296
Ensure aborting has the same inputs as render: #94436
[App Shells] App shells in runtime prefetches: #93801
[turbopack] Optimize TaskInput implementations: #94202

Credits

Huge thanks to @timneutkens, @lubieowoce, @aurorascharff, @sokra, @sampoder, @eps1lon, and @lukesandberg for helping!

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Next.js

v16.3.0-canary.39

1 month ago

Misc Changes

Upgrade React from c0cd4d5d-20260527 to f0dfee38-20260529: #94245
Turbopack: fix pages index normalization for --debug-build-paths: #94341

Credits

Huge thanks to @vercel-release-bot and @mischnic for helping!

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Next.js

v16.3.0-canary.38

1 month ago

Misc Changes

[cd] Stop fetching all tags when searching for ancestor tag: #94302
chore: lint-language output only warnings and errors: #94261
DiskFileSystem: run write effects on a spawned task: #94140
Disable default-case ESLint rule for type-checked TypeScript files: #94316
Handle a purged browser cache on back navigation: #94317
Persist debug channel via IndexedDB without blocking hydration: #94243
Fix debug channel not closing on the client with Node streams: #94268
refactor: use named arguments for StagedRenderingController: #94345
Avoid bundling HMR refresh reducer in production: #94305
Remove the instantNavigationDevToolsToggle flag: #94322
doc: clarify rewrites execution order: #93765
docs: update draftMode guide: #94155
docs: cached functions from the client: #94301
skip render dev overlay ux under private flag: #94346
Turbopack: fix bundle-analyzer for NFT change: #93363
Devirtualize the backend api inside of turbo_tasks and turbo-tasks-backend: #94007
Delay Node Fizz piping until after render task: #94347
Enable Node streams by default: #94311
[tests] Use snapshots in debug-build-paths: #94352
Turbopack: support turbopackIgnore on more traced calls: #94361
[turbopack] Treat assignments to module.exports as side-effect free: #94293
instant: enable navigation validation by default: #94312
Turbopack: Move turbo-tasks/src/raw_vc.rs to turbo-tasks/src/vc/raw.rs: #94239

Credits

Huge thanks to @eps1lon, @icyJoseph, @sokra, @unstubbable, @lubieowoce, @timneutkens, @samselikoff, @huozhi, @mischnic, @lukesandberg, @sampoder, @aurorascharff, and @bgw for helping!

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Next.js

v16.3.0-canary.37

1 month ago

Misc Changes

Switch TotalOrderF64 to f64 in ConstantNumber to correctly handle NaN === NaN and 0 === -0 inside the Turbopack analyzer: #94172
Use serde_json::Number in CompileTimeDefineValue and remove TotalOrderF64: #94177
docs: bodySizeLimit measures raw HTTP body: #94137
Update ctor from 0.10 to 1.0.6: #94045
Include --port in next internal query-trace startup hint and help example: #93961
Turbopack: refactor NFT to add Endpoint.traced_files: #94224
Turbopack: show codeframe when tracing too much: #94207
fix(instrumentation): await instrumentation in RouteModule.prepare: #94306
[turbopack] Function pointers are copy: #94273
docs: accuracy and pappercuts: #94299

Credits

Huge thanks to @sampoder, @icyJoseph, @sokra, @mischnic, and @lukesandberg for helping!

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Next.js

v15.5.19

15.5.19

1 month ago

[!NOTE] This release is backporting bug fixes. It does not include all pending features/changes on canary.

Core Changes

[15.5.x] Don't drop FormData entries (#94244)

Other

[15.5.x] Fix CI (#94281)

Credits

Huge thanks to @eps1lon for helping!

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Next.js

v16.2.7

1 month ago

[!NOTE] This release is backporting bug fixes. It does not include all pending features/changes on canary.

Core Changes

Backport documentation fixes for v16.2 (#93804)
[backport] Patch playwright-core to resolve _finishedPromise on requestFailed (#93920)
[backport] Fix dev mode hydration failure when page is served from HTTP cache (#93492)
[backport] Fix catch-all router.query corruption with basePath + rewrites (#93917)
[backport] Encode non-ASCII characters in cache tags at construction (#93918)
[backport] Fix server action forwarding loop with middleware rewrites (#93919)
[backport] Turbopack: switch from base40 to base38 hash encoding (#93932)
[ci] Disable hanging node 24 typescript tests on 16.2 backport branch (#94164)
[backport] Fix "type: module" in project dir when using standalone or adapters (#94050)
[backport] Propagate adapter preferred regions (#94200)
[16.2.x] Don't drop FormData entries (#94240)
[backport] feat(turbopack): add LocalPathOrProjectPath PostCSS config resolution (#94284)

Credits

Huge thanks to @eps1lon, @icyJoseph, @unstubbable, @mischnic, @bgw, @timneutkens, and @lukesandberg for helping!

Read more →

Next.js

v16.3.0-canary.36

1 month ago

Misc Changes

Turbopack analyzer: analyze ternaries + promises in string & nullish methods: #94187
[turbopack] Break up graph.rs in the analyzer into smaller files: #94211
[turbopack] Add explain() methods to WellKnownObjectKind and WellKnownFunctionKind: #94217
[turbopack] Handle negative numbers as constants in the analyzer: #94218
[turbopack] Use ast_path.kinds() instead of mapping over ast_path in the analyzer: #94221
[CLI] Exit non-zero with a clear message when next typegen fails: #94241

Credits

Huge thanks to @sampoder and @gaojude for helping!

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Next.js

v16.3.0-canary.35

1 month ago

Misc Changes

Exclude static metadata and viewport from error recovery prerender when cache-components is enabled: #94134
[turbopack] Shrink ReadRawVcFuture from 80 to 64 bytes: #94201
[turbopack] Move WellKnownObjectKind & WellKnownFunctionKind into well_known/kinds.rs in the analyzer: #94209
[turbopack] Move require.context-related code into a seperate file in the analyzer: #94210

Credits

Huge thanks to @gnoff, @lukesandberg, and @sampoder for helping!

Read more →

Next.js

v16.3.0-canary.34

1 month ago

Misc Changes

Update shortcircuit_if_known to eval_shortcircuit(): #94163
Remove dead code from JsValue::Binary in is_truthy: #94165
Produce valid file URLs for import.meta.url on Windows in Turbopack: #94179
[turbopack] Store TaskDirtyCause in Dirtyness and pass to NativeFunction::span: #94057
Turbopack: cleanup ModuleHotReferenceAssetReference: #94206
[feat] updated the documentation for deployment to point to new next.js Docker official guide.: #94185
docs: correct custom server optimization guidance: #94229
Add Errors/Insights tab split to the instant error overlay: #94073
Replace VcStorage with real TurboTasks in tests/benches : #93955
Redesign the unrendered-segment instant validation overlay: #93879
turbopack tracing: add chunk_name to get HMR events span: #94061
Turbopack: reduce hmr chunk list subscriptions: #94062
[turbopack] Separate JsValue into it's own folder in the analyzer: #94208
feat(image-optimization): add experimental flag imgOptOperationCache: #94246

Credits

Huge thanks to @sampoder, @sokra, @mischnic, @kristiyan-velkov, @timneutkens, @aurorascharff, @lukesandberg, @wbinnssmith, and @styfle for helping!

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Next.js

v16.3.0-canary.33

1 month ago

Misc Changes

docs: fix code examples in getting-started guides: #93273
[CC] Streaming prerender: #94044
test: skip flaky instant-nav-panel tests: #94196
[CC] Avoid unnecessary conversions to a stream: #94192
test: fix next-after-app-static: #94195
Propagate adapter preferred regions: #94123
[ci] Update all actions/* dependencies: #94174
Consolidate Resume Data Caches and partially revert #88556: #94194
Fix 'use cache' bail-out under unstable_instant = false: #94198
Turbopack: use module graph for NFT: #92901
Turbopack's analyzer: always treat promises as truth-y and non-nullish: #94186

Credits

Huge thanks to @StanislavKozachenko, @lubieowoce, @timneutkens, @bgw, @unstubbable, @mischnic, and @sampoder for helping!

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Next.js

v16.3.0-canary.32

1 month ago

Misc Changes

Fix short circuit evaluation of AND / OR in the Turbopack analyzer for string & nullish-related methods: #94159
Turbopack: fix instrumentationClientInject with type:module: #94184
[test] Add test for static metadata files and generateStaticParams: #93465
Align issue triage guidance with automated behavior: #94189

Credits

Huge thanks to @sampoder, @mischnic, @eps1lon, and @timneutkens for helping!

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Next.js

v16.3.0-canary.31

1 month ago

Misc Changes

ServerActionsGraph: pass ModuleGraphLayer as OperationVc: #94141
[ci] Explicitly disable package-manager-cache for uses of actions/setup-node: #93953
Bugfix: Incorrect search params stored in cache: #94144
Upgrade ast-grep: #94150
docs: transpilePackages usage: #93602
[Skills] next-cache-components-optimizer: clarify private-cache scope rule: #94113
[ci] Increase TEST_CONCURRENCY from 8 to 12: #94138
Upgrade React from 75b0945b-20260526 to c0cd4d5d-20260527: #94161
Remove extra word: #94160
[ci] Give the build cache in cache in build_and_deploy a more obvious name, not just a hash and run number: #93957
docs: move isr cacheHandler callout to next steps: #94167
[ci] Rename GRAPHITE_TOKEN to GRAPHITE_CI_OPTIMIZER_TOKEN: #94166
Fix default regex for require.context in Turbopack analyzer: #94162
[ci] Use Turbopack in non-webpack-specific e2e test jobs: #94005

Credits

Huge thanks to @sokra, @bgw, @acdlite, @mischnic, @icyJoseph, @gaojude, @vercel-release-bot, @igorbabko, and @sampoder for helping!

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Next.js

v16.3.0-canary.30

1 month ago

Core Changes

Revert "Revert "refactor: write pages router export files directly to server/pages/"": #93409

Misc Changes

Turbopack: make available_modules an OperationVc and simplify merged module bookkeeping: #94055
chore: release @next/rspack-core 1.0.3: #94116
Improve notFound recovery in error pathway: #94037
Turbopack: Fix unsound IntoIterator for ReadRef<T>: #94122
[ci] Skip installing native binaries when fetching test timings: #93593
[ci] Reserve comments for stats and tests: #93240
docs: vocabulary-bridge rule for api-ref and guide skills: #94127
docs: rework dynamic segments intro section: #94126
[ci] Fix the playwright-chromium Dockerfile: #94064
Fix Firefox refresh loop on initial load of streaming pages in dev mode: #94128
Upgrade React from d5736f09-20260507 to 75b0945b-20260526: #94131
Prefetch App Shells on the client: #93999
[ci] Add an AGENTS.md for GitHub Actions: #94056
docs: add next/root-params API reference: #93764
docs: ISR w/ Cache Components - experimental.partialFallbacks: #93299
[ci] Resize tiny jobs in integration_tests_reusable.yml to use smaller machines: #93886

Credits

Huge thanks to @sokra, @SyMind, @gnoff, @timneutkens, @eps1lon, @icyJoseph, @bgw, @unstubbable, @vercel-release-bot, and @acdlite for helping!

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Next.js

v16.3.0-canary.29

1 month ago

Misc Changes

Replace next-ppr-optimizer with next-cache-components-optimizer: #94035
[Skills] next-dev-loop: persist login state across loops: #94105
Fix errors.json merge driver to handle gaps in error codes: #93829

Credits

Huge thanks to @gaojude and @sokra for helping!

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Next.js

v16.3.0-canary.28

1 month ago

Misc Changes

[Skills] Mark backport-pr and create-pr as internal: #94076

Credits

Huge thanks to @gaojude for helping!

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Next.js

v16.3.0-canary.27

1 month ago

Misc Changes

Add next-dev-loop and next-ppr-optimizer skills: #93943
test: migrate webdriver callers to next.browser: #93941
Revert "Include PPR routes in dynamicRoutes regardless of revalidate time": #94032
Fix pr-status job pagination: #94049
Prerender static metadata under dynamic segments to canonical pathname: #93873
Instant navs devtools revamp: #94027
Add Chromium-only Playwright image publisher: #94051

Credits

Huge thanks to @gaojude, @timneutkens, @gnoff, and @samselikoff for helping!

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Next.js

v16.3.0-canary.26

1 month ago

Misc Changes

[ci] Add an TURBO_TASKS_AVAILABLE_PARALLELISM environment variable that overrides std::thread::available_parallelism callsites: #93995
Make --debug-build-paths work with src/ directory projects: #94016
ci: run Linux Playwright jobs in prebuilt Microsoft container: #93794
Revert "Prerender HTTP access fallbacks with Cache Components semantics": #94018
Respond to App Shell prefetches on the server: #93998
[turbopack] Disable ctor under RA: #94022
Upgrade rustc to nightly-2026-05-15: #94021
Turbopack: don't crash the dev server when node_modules/next is briefly unresolvable: #93877
Include PPR routes in dynamicRoutes regardless of revalidate time: #94025
Enable experimental.varyParams by default: #94010
Enable experimental.optimisticRouting by default: #94011
Enable experimental.cachedNavigations by default with cacheComponents: #94012
Update font data: #94006
[ci] Set TURBO_TASKS_AVAILABLE_PARALLELISM to 4 in most e2e tests: #93996

Credits

Huge thanks to @bgw, @unstubbable, @timneutkens, @acdlite, @lukesandberg, @mischnic, @gnoff, and @vercel-release-bot for helping!

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Next.js

v16.3.0-canary.25

1 month ago

Misc Changes

Enable mimalloc in benchmarks: #93388
Turbopack: fix subpath imports pointing to external packages: #93308
Turbopack: fix error reporting with crashing webpack loaders: #93926
docs: instrumentationClientInject: #93913
Fix Yarn berry tests: #93962
Polish instant fix cards and validation messages: #93894
Add deployable tarballs to pack-next: #93963
fix(devtools): detect VS Code renamed macOS binary in launch-editor: #93971
turbo-tasks: task-storage memory wins: #93720
Add backport PR skill: #93973
Turbopack: respect the module-sync export condition: #93970
use the action cache for passing tests: #93954
devlow-bench: percentile-based comparison and run retries: #93950
@vercel/devlow-bench: 0.3.5 → 0.4.0: #93951
[test] Prerendering HTTP access fallback pages with Cache Components: #93987
Prerender HTTP access fallbacks with Cache Components semantics: #93988
Add experimental.appShells feature flag: #93997

Credits

Huge thanks to @lukesandberg, @mischnic, @aurorascharff, @timneutkens, @wbinnssmith, @unstubbable, and @acdlite for helping!

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Next.js

v16.3.0-canary.24

1 month ago

Core Changes

Add nextConfig.instrumentationClientInject: #93785
Add MCP compile_route tool: #93337
[turbopack-trace-server] Add memory samples to the mcp tool results: #93338

Misc Changes

docs: update agent test guidance: #93924
Add create PR skill: #93937
Use node streams for server inserted HTML: #93934
Remove vercel approvers: #93921
[otel] honor traceparent for verbose mode spans: #93874
Fix cross-param leak with prefetch={true} and cachedNavigations: #93940
Enable rootParams by default: #93863
devlow: add run sampling snapshots and comparison reports: #93833
Allow inspecting prerender worker again: #93947
make rcstrs on the heap/static slightly smaller: #93805
Stop pinning compiled chunk source on EcmascriptBuildNodeChunkVersion. : #93807
[turbopack] Add trace metadata about the persist size: #93339

Credits

Huge thanks to @timneutkens, @mischnic, @gnoff, @kakadiadarpan, @unstubbable, @wbinnssmith, and @lukesandberg for helping!

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Next.js

v16.3.0-canary.23

1 month ago

Core Changes

[Turbopack] Add graph-based CSS chunking algorithm behind experimental.cssChunking: "graph": #93606

Misc Changes

Convert more tests from createNext -> nextTestSetup: #93799
turbopack: emit assets before duplicate check in emit_assets: #93875
[test] split og-api test suite into default and standalone variants: #93915
Pass projectDir to adapter modifyConfig: #93916
Distinguish in-navigation errors in the instant error overlay: #93843
Eval next.config export functions in the try catch: #93884
Rename TaskExecutionReason::Initial to Root: #93922

Credits

Huge thanks to @timneutkens, @sokra, @unstubbable, @mischnic, @aurorascharff, and @lukesandberg for helping!

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Next.js

v16.3.0-canary.22

1 month ago

Misc Changes

turbo-tasks: prioritize recomputed tasks with Recomputation priority: #93876

Credits

Huge thanks to @sokra for helping!

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Next.js

v16.3.0-canary.21

1 month ago

Core Changes

Redesign dev overlay: cleaner shell + instant fix-card guidance: #93755

Misc Changes

Trace middleware/proxy source files in webpack NFT pipeline: #93871

Credits

Huge thanks to @unstubbable and @yavorpunchev for helping!

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Next.js

v16.3.0-canary.20

1 month ago

Core Changes

[turbopack] fix feature usage telemetry: #93100
Add an info panel for the existing "Cache disabled" indicator: #93756
Convert test/integration to isolated tests: #93247
Extend instant error overlay to metadata, viewport, and sync IO errors: #93287
Turbopack: expose hashes of source files to adapters: #93539
bfcacheId: Opt out of state preservation: #93633
Honor Suspense-above-body opt-in for dynamic generateViewport: #93759
Add next internal static-routes-info CLI command: #93399
Craigandrews/ensure isr lru is written if requests collapsed: #93766
Fix catch-all router.query corruption with basePath + rewrites: #93294
Surface invalid dynamic usage errors via Flight in dev: #93706
Upgrade React from dd453071-20260506 to d5736f09-20260507: #93702
Show inner "use cache" as cause of nested-dynamic cache error: #93707
Fix server action forwarding loop with middleware rewrites: #93792
Instant Insights: When unable to complete validation provide a filename for the unvalidated boundary: #93770

Example Changes

[examples] migrate cloudinary to vercel-blob: #93762

Misc Changes

Turbopack: don't generate next-server.js.nft.json with adapters: #93684
Repo: Add gh stack skill: #93705
Fix React 18 tests: #93763
docs: clarify cacheTag limit - it is per call: #93768
docs: devIndicators with usage example: #93784
Convert tests using createNext -> nextTestSetup: #93767
Turbopack: fix lock-order inversion between Storage::map and Storage::snapshots: #93788
[turbopack] Enforce root attribute for strongly consistent reads and collectibles: #93114
Fix Turbopack worker_threads URL resolution: #93432
docs: less aggressive AI agent hint for an experimental API: #93811
docs: fix typos and links: #92541
docs: less aggressive AI agent hint for an experimental API: #93814
Patch playwright-core to resolve _finishedPromise on requestFailed: #93802
Revert "[test] Skip flaky cached-navigations tests": #93798
fix: GNU xargs warns about incompatible --replace/--max-args: #93821
fix: renumber non-sequential errors in errors.json: #93824
simplify session dependent tasks (#91729): #93227
fetch: respect HTTP Cache-Control headers with TTL-based invalidation (#91729): #93228
[CC] fix: cachedNavigations missing asyncApiPromises in resumes: #93827
Fix Date.now() cause shadowing in sync IO error overlay: #93857
Mark .agents/skills as internal so external npx skills add hides them: #93856
Instant Insights: only report non-validatable if dev render is error free: #93858
Remove partialFallbacks config flag: #93859
Fix warning in new apps caused by incorrect image dimensions: #93826

Credits

Huge thanks to @lukesandberg, @mischnic, @unstubbable, @timneutkens, @aurorascharff, @icyJoseph, @acdlite, @christopherkindl, @sokra, @gnoff, @publictheta, @gaojude, @unclebay143, @lubieowoce, @vercel-release-bot, and @samselikoff for helping!

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Next.js

v16.3.0-canary.19

1 month ago

Misc Changes

Proof of concept: task eviction after snapshot for turbo-tasks-backend: #91790

Credits

Huge thanks to @lukesandberg for helping!

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Next.js

v16.3.0-canary.18

1 month ago

Core Changes

Remove redundant instant navigation prefetch header: #93713
Instant Insights: Favor reporting errors from all potential navigations over reporting a failed attempt to validate when a slot is missing: #93714

Misc Changes

CI speed improvements: #93411

Credits

Huge thanks to @acdlite, @gnoff, and @timneutkens for helping!

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Next.js

v16.3.0-canary.17

1 month ago

Core Changes

Stabilize unstable_io: #93621
Use Next.js version as Turbopack persistent cache versioning key: #93605
feat(turbopack): add chunkLoadingGlobal config option: #93488
fix(devtools): render nested error messages with HotlinkedText: #93620
Fix: Improved rewrite detection during optimistic routing: #93619
Fix "type: module" in project dir when using standalone or adapters: #93612
Instant Insights: favor reported errors over missing slots: #93709

Misc Changes

Trace-server: Fix bottom up, and reduce allocations in turbopack-trace-server bottom-up grouping: #93460
turbopack: reschedule stale tasks with correct invalidation priority: #92897
[ci] Also pin first-party GH actions: #93609
Remove ineffective turbo-tasks: #91341

Credits

Huge thanks to @gnoff, @sokra, @tim123abc, @aurorascharff, @acdlite, @timneutkens, @bgw, and @lukesandberg for helping!

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Next.js

v16.3.0-canary.16

1 month ago

Core Changes

Hold cacheSignal across unstable_cache foreground revalidation: #93617
Encode non-ASCII characters in cache tags at construction: #93601

Credits

Huge thanks to @unstubbable for helping!

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Next.js

v16.3.0-canary.15

1 month ago

Core Changes

[devtools] Force ANSI colors on overlay code frames regardless of TTY: #93550
Turbopack: Match proxy matchers with webpack implementation: #93594
Track searchParams access through a Proxy to catch missing-key reads: #93549
Cherry-pick ghsa commits to canary: #93614

Misc Changes

docs: escape literal triple-backticks in contribution guide: #93584
[test] Pin package manager to patch versions: #93592
turbo-rcstr: replace rcstr! macro_rules with proc macro: #93551
Turbopack: Fix middleware matcher suffix: #93590
Turbopack: Change DynEffect::dyn_value to DynEffect::value_hash, a simple u128: #93552
[ci] Ensure graphite_ci_optimizer fails open even if github fails to fetch the action: #93615

Credits

Huge thanks to @aurorascharff, @icyJoseph, @eps1lon, @lukesandberg, @timneutkens, @unstubbable, and @bgw for helping!

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Next.js

v15.5.18

1 month ago

This release contains security fixes for the following advisories:

High:

Moderate:

Low:

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Next.js

v16.2.6

1 month ago

This release contains security fixes for the following advisories:

High:

Moderate:

Low:

Read more →

Next.js

v16.3.0-canary.14

1 month ago

Misc Changes

perf(ecmascript): shrink JsValue 64→32 bytes: #93106
Order loader tree imports by tree depth: #93537
Turbopack: more strict vergen setup: #93541

Credits

Huge thanks to @mmastrac, @sokra, and @mischnic for helping!

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Next.js

v16.3.0-canary.13

2 months ago

Core Changes

Disable instant validations in draft mode: #93472

Misc Changes

Drop ReferencedAsset::from_resolve_result as a turbotask: #93297
Turbopack: Cache effect errors, replace the write_lock Mutex with a lazily created Notify instance: #93476

Credits

Huge thanks to @samselikoff, @lukesandberg, and @bgw for helping!

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Next.js

v16.3.0-canary.12

2 months ago

Core Changes

Refactor: Decouple request store creation from req / res: #93499
Detect 'use cache' module-scope deadlocks early in dev: #93500
Bundle the 'use cache' deadlock probe worker: #93538
Support configuring a default instant validation level : #93301
Upgrade React from f4e0d4ed-20260429 to dd453071-20260506: #93547

Misc Changes

[turbopack] shrink the size of futures: #93474
[turbopack] Simplify local task tracking: #93478
[turbopack] correct a fencepost error in our inline string descision: #93524
Turbopack: make rcstr! macro expansion const: #93516
Turbopack: lazy aggregation optimize via persistent pending flag: #93454
docs: remove unreachable forms and mutations: #93509
docs: broken link from usePathname compat call out: #93528
Turbopack: really fix MAX_INLINE_LEN: #93531
[ci] Clarify new preview build flow: #93540
Turbopack: simplify asset ident constructors: #93213

Credits

Huge thanks to @lukesandberg, @unstubbable, @mischnic, @sokra, @icyJoseph, @eps1lon, @gnoff, and @vercel-release-bot for helping!

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Next.js

v16.2.5

2 months ago

This release contains security fixes for the following advisories:

High:

Moderate:

Low:

Read more →

Next.js

v15.5.16

2 months ago

This release contains security fixes for the following advisories:

High:

Moderate:

Low:

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Next.js

v16.3.0-canary.11

2 months ago

Core Changes

Fix dev mode reload and error on back navigation between Next.js pages: #93486
Fix double-encoding of URL pathname parts in client param parsing: #93491
Don't suppress usage of deprecated TypeScript compilerOptions: #93377

Misc Changes

[ci] Move Turbopack, Rspack and font data workflows off of RELEASE_BOT_GITHUB_TOKEN: #93455
[ci] Migrate React sync off of RELEASE_BOT_GITHUB_TOKEN: #93456
[ci] Create unique preview build versions for canary previews: #93490
docs: clarify proxy runtime history: #93467
Turbopack: fix import_usage for functions behind member expressions: #93504
[ci] Ensure pnpm store cache is only filled when pnpm install runs: #93508
Update unstable_prefetch and unstable_instant docs to reflect current API shape: #93514
[ci] Remove unused setup-nextjs-build.yml workflow: #93512

Credits

Huge thanks to @eps1lon, @unstubbable, @armando-andre, @mischnic, and @gnoff for helping!

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Next.js

v16.3.0-canary.10

2 months ago

Core Changes

Upgrade React from da9325b5-20260417 to f4e0d4ed-20260429: #93457
Bump @vercel/ncc: #93459
Include deployment id in cacheHandlers keys: #93453
fix(next/image): Improve error message for private IP (SSRF) rejections: #91686

Misc Changes

Upgrade to swc 65: #93325
[test] Ensure target page is compiled before navigation in instant-navs-devtools: #93365
[ci] Allow configuring the base URL for preview builds: #93464
turbo-tasks-backend: fix snapshot coordination races + extract SnapshotCoordinator: #93416

Credits

Huge thanks to @mischnic, @vercel-release-bot, @eps1lon, @rishishanbhag, and @lukesandberg for helping!

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Next.js

v16.3.0-canary.9

2 months ago

Misc Changes

Drop once_cell from all direct crate deps: #93095
Replace Lazy<FxHashMap> static lookups with phf::Map: #93096

Credits

Huge thanks to @mmastrac for helping!

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Next.js

v16.3.0-canary.8

2 months ago

Core Changes

Revert "Revert "Node.js streams: Add forkpoint for prerenderToStream"": #93376
Fix streaming in draft mode for cache components: #93417

Misc Changes

trace-server: shrink_to_fit LazySortedVec after sorting: #93361
feat(metadata): support non-standard directives in robots.ts via other: #93206
[turbo-trace-server] optimize loading even more: #93332

Credits

Huge thanks to @sokra, @timneutkens, @lukesandberg, and @samselikoff for helping!

Read more →

Next.js

v16.3.0-canary.7

2 months ago

Misc Changes

[test] Preserve Playwright traces on every failure: #93366
[ci] Add support for private preview builds: #93375
Fix deploy tests crashing under AI coding assistants: #93394
Remove leftover Turbopack manifests: #93398
[ci]: remove PR creation from deploy test workflow: #93400

Credits

Huge thanks to @eps1lon, @unstubbable, @timneutkens, and @ztanner for helping!

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Next.js

v16.3.0-canary.6

2 months ago

Core Changes

Honor the route-level expire value with blocking revalidation: #93211
Turbopack: add experimental.turbopackWorkerAssetPrefix to keep Workers same-origin when assetPrefix is a CDN: #93271
chore: bump postcss to 8.5.10: #93288
Enable server HMR for metadata routes (manifest.ts, robots.ts, etc.): #93110
[next/image] Only fire onError once: #93209
fix: handling of falsey values in error boundaries: #93134
Update upload trace url: #93350
enable validateRSCRequestHeaders by default: #93367
Deprecate edge runtime: #93369
Only log partytown setup error once: #93378

Misc Changes

turbo-tasks: precompute trait-impl vtables at compile time: #93092
Report OS memory pressure in TurboMalloc and trace samples: #93333
Speed up native postinstall script: #93312
Turbopack: remove unused module references: #93335
Turbopack: remove ModuleResolveResultItem::OutputAsset: #93349
[test] Suppress build when preparing next for cache hits: #93355
[test] Fix broken terminal output: #93357
Turbopack: delete unused turbo-static crate: #93324
fix a snapshot encoding error that could happen under concurrent mutation and snapshotting: #92658
Update 05-server-and-client-components.mdx: #93374
docs: clarify rendering flow in Server/Client interleaving example: #93381
[test] Stop building fresh packages for every test: #93380

Credits

Huge thanks to @mmastrac, @unstubbable, @GuinsooRocky, @sokra, @eps1lon, @mischnic, @maximecolin, @lukesandberg, @wbinnssmith, @lubieowoce, @timneutkens, @ztanner, @zana-abdi2002, and @icyJoseph for helping!

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Next.js

v16.3.0-canary.5

2 months ago

Core Changes

Apply sourcemaps by default during prerender in next build: #93280
Fix route handler SWR blocking on Node runtime: #93189
[ci]: fix release script to not strip newlines: #93302
Forward invalid dynamic usage errors on client-side navigations: #93184
HMR: debounce status indicator transitions to prevent flicker during bursts of changes: #93229
ci: Fix caching of test-cargo-unit: #93327
Turbopack: pull in updated vercel/nft tests: #93321

Misc Changes

Turbopack: compute exports without full analysis: #92823
Turbopack: cheaper check in map_next_dynamic: #93283
[turbo-tasks-backend] Single-item optimization for lost follower operations: #93200
Fix export * as X from './self' in scope-hoisted modules: #93192
[ci]: Use macOS arm runner for intel builds: #93330
Turbopack: only compute module ids for included modules: #93276
Turbopack: iter_reachable_modules: #93315
Turbopack: add failing test for cross-module side-effect inference: #93323
Turbopack: also add edge count to trace: #93314
[turbopack-trace-server] optimize loading: #93264
[rust-deps] Update tokio: #93195

Credits

Huge thanks to @eps1lon, @mischnic, @unstubbable, @ztanner, @sokra, @wbinnssmith, and @lukesandberg for helping!

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Next.js

v16.3.0-canary.4

2 months ago

Core Changes

Preserve __NEXT_ERROR_CODE across the /_error page handoff: #93183

Misc Changes

Reduce allocations in the next_debug_instant_stack transform: #93222

Credits

Huge thanks to @unstubbable and @lukesandberg for helping!

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Next.js

v16.3.0-canary.3

2 months ago

Core Changes

New ESLint rule: no-location-assign-relative-destination: #92900
Upgrade React from fef12a01-20260413 to da9325b5-20260417: #92945
Auto-generate AGENTS.md / CLAUDE.md in next dev: #92910
Strengthen _rsc cache-busting param: #92755
rage-restart followup: #92591
fix(use-cache): remove awaiting revalidation: #92636
Revert "Adopt pnpm catalogs for devDependencies": #93226
instant(): Block out-of-band client fetches: #93099
[next/image] Stop using deprecated url.parse: #93208
Suspend dynamic route params in dev instant shell: #93108
Turbopack: import.meta.glob docs + edge case support: #92729

Misc Changes

chore: Prune list of users in labeler json: #92984
[test] Deflake shallow-routing: #93006
Use existing commitId for tarball URL in stats action: #92899
docs: link Activity guide from Cache Components migration guide: #92571
docs: add guide for displaying dates without hydration flash: #92786
chore: remote apps/docs: #93041
[ci]: remove unused workflow: #93064
[ci]: remove publish token in favor of OIDC: #93065
Update Rspack development test manifest: #92959
[ci] Temporary disable of sccache: #93074
Use OIDC for CodSpeed: #93059
Restore dev-mode cache-fill timeout for 'use cache': #93055
[ci]: add environment to publishRelease flow: #93093
Adopt pnpm catalogs for devDependencies: #93071
Make 'use cache' fill timeout configurable: #93070
turbo-tasks: drop once_cell, const-init TRAIT_METHOD, ctor WORKER_TASKS: #93090
Patch setHeader for direct route handlers: #93101
[turbopack] Persistent last_successful_parse: #92852
[turbopack] Unify Cell Storage: #92974
Collapse pnpm test scripts into a single helper invocation: #93097
[tests]: fix cache-components.test.ts type error: #93113
[ci]: cleanup labeler: #93135
Docs: add signed commit guidance: #93155
[ci]: switch to GitHub runners: #93164
[ci]: pin rust-musl-cross: #93176
[turbopack] Fix max_level_hint to return most verbose per-target level: #93128
feat(turbopack): add NEXT_TURBOPACK_TRACING_PATH to control trace output location: #93084
Turbopack: move import_usage computation into ImportMap: #92891
[rust-deps] Update serde: #93196
[rust-deps] Update tracing: #93194
Turbopack: unify ModuleGraph constructors: #93203
[ci] replace next-labeler-webhook with in-repo GitHub Action: #93080
example: remove with-supertokens: #93212
Turbopack: move get_inner_asset into ecmascript module: #93191
[ci] Fix auto-label workflow: #93215
[test] Remove dead symlink: #93217
[ci] Populate GITHUB_TOKEN for auto-labeler: #93219
[ci]: move stats & CI status comment to workflow: #93220
[ci] Upload preview builds directly to Vercel Blob: #93207
[ci]: fix permissions on comment workflow: #93225
[turbopack] drop TransientState: #92853
[ci] Handle namespaced packages in preview builds: #93241
[ci] Create test summary comment if job immediately passes: #93236
[ci] Automatically start React sync when new react@experimental is available: #93235
[rust-deps] Update bytes, crc32fast, memchr, pin-project-lite, quote, rand, regex, ringmap, roaring: #93197
Recognize super(...) messages in Error subclass constructors: #93182
docs: remove broken error-handling overlay screenshot: #93279
[ci]: app-based release workflow: #93245
[turbopack-trace-server] Performance improvements for span event handling: #93179
[ci]: trigger signed release commit via API: #93285

Credits

Huge thanks to @bgw, @eps1lon, @SukkaW, @nextjs-bot, @devjiwonchoi, @aurorascharff, @feedthejim, @icyJoseph, @ztanner, @vercel-release-bot, @mmastrac, @mischnic, @gaojude, @unstubbable, @lukesandberg, @ijjk, @wbinnssmith, @awo00, @sokra, @acdlite, and @christopherkindl for helping!

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Next.js

v16.3.0-canary.2

2 months ago

Misc Changes

Improve "make root node" trace attributes: #92941
CI: Track SWC native binary size in PR stats comment: #92938

Credits

Huge thanks to @sokra for helping!

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Next.js

v16.3.0-canary.1

2 months ago

Core Changes

Support more prefetch configuration options: #92859
Improve deduping of concurrent 'use cache' invocations: #91830
[partial fallbacks]: include prefetch requests in shell upgrade handling: #92894
Redesign blocking route dev overlay and build errors: #92638
Switch to cargo-binstall and pre-built sccache binaries: #92911
Remove prefetch from instant config: #92761

Misc Changes

Fix flake in rewrites-manual-href-as test: #92948
docs: amends to preserving-ui-state guide: #92270

Credits

Huge thanks to @gnoff, @unstubbable, @ztanner, @aurorascharff, @mmastrac, and @icyJoseph for helping!

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Next.js

v16.3.0-canary.0

2 months ago

Core Changes

fix(next/image): ensure images.maximumResponseBody applies to local images too: #92920
Refactor trace server sort to SortMode enum (execution order / value / name): #92873
Perf: Simplify static metadata handling: #92630
remove flag guarding unstable_io: #92923

Misc Changes

[ci] Cache passing test results so CI retries skip them: #92832
fix accidental test duplication: #92922
rename MagicAny: #92918
turbopack: reduce EffectStateStorage memory by storing u128 content hashes: #92902
turbo-trace-server: reduce allocation overhead when loading large trace files: #92896
Turbopack: optimize SelfTimeTree performance, memory usage, and fix range query boundaries: #92931
[ci]: fix backport sync script: #92942

Credits

Huge thanks to @styfle, @mmastrac, @ztanner, @lukesandberg, @sokra, @timneutkens, and @gnoff for helping!

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Next.js

v16.2.1-canary.46

2 months ago

Core Changes

Support type cast expressions in page static info extractor: #92837
Fix dev mode hydration failure when page is served from HTTP cache: #92892
[devtools] Preserve full code frames in browser overlay: #92621
Enable prefetchInlining by default: #92863
Replace deprecated moduleResolution: "node": #92654

Misc Changes

turbo-tasks: add info_span for blocking waits during task restore: #92878
Turbopack: Use an async lock in the filesystem watcher: #92906
[ci] Skip Playwright system deps install on subsequent self-hosted runs: #92893
turbo-tasks: Reduce allocations on cache hits: #92756
CI: Remove dead yarn support from next-stats-action: #92587

Credits

Huge thanks to @mischnic, @sokra, @unstubbable, @aurorascharff, @acdlite, @bgw, @mmastrac, @eps1lon, and @lukesandberg for helping!

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Next.js

v16.2.1-canary.45

2 months ago

Core Changes

Allow overriding outputHashSalt in modifyConfig: #92856

Misc Changes

Turbopack: Use lld again on ARM64 glibc Linux: #92860
[ci]: add workflow to bump canary after backport: #92801
turbopack: cache TransformPlugin in narrow-scoped turbo-tasks functions: #92842

Credits

Huge thanks to @bgw, @ztanner, @sokra, and @mischnic for helping!

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Next.js

v16.2.1-canary.44

2 months ago

Core Changes

fix(trace-server): default MCP port to --port + 1 to avoid conflicts: #92831
Revert "Node.js streams: Add forkpoint for prerenderToStream": #92845
Warn for non-deterministic "use cache" args during final prerender: #92820

Misc Changes

Share native binaries via GitHub artifacts: #92758
Turbopack: shorter error message for ModuleBatchesGraph::get_entry_index: #92828
Turbopack: refactor export analysis: #92781
[ci] Skip sccache on Windows runners: #92847
Turbopack: remove StarImportAnalyzer: #92830
Turbopack: analyzer improvement followups: #92834
Update Rspack production test manifest: #92674
Update Rspack development test manifest: #92673
Turbopack: move assignment_scopes computation into ImportMap: #92835
docs: restructure instant nav guide for clarity: #92684
docs: add documentation for no-typos ESLint rule: #92809

Credits

Huge thanks to @mmastrac, @sokra, @mischnic, @timneutkens, @vercel-release-bot, @unstubbable, @icyJoseph, and @MukundaKatta for helping!

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Next.js

v16.2.4

2 months ago

[!NOTE] This release is backporting bug fixes. It does not include all pending features/changes on canary.

Core Changes

chore: Bump reqwest to 0.13.2 (Fixes Google Fonts with Turbopack for Windows on ARM64) (#92713)
Turbopack: fix filesystem watcher config not applying follow_symlinks(false) (#92631)
Scope Safari ?ts= cache-buster to CSS/font assets only (Pages Router) (#92580)
Compiler: Support boolean and number primtives in next.config defines (#92731)
turbo-tasks: Fix recomputation loop by allowing cell cleanup on error during recomputation (#92725)
Turbopack: shorter error for ChunkGroupInfo::get_index_of (#92814)
Turbopack: shorter error message for ModuleBatchesGraph::get_entry_index (#92828)
Adding more system info to the 'initialize project' trace (#92427)

Credits

Huge thanks to @Badbird5907, @lukesandberg, @andrewimm, @sokra, and @mischnic for helping!

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Next.js

v16.2.1-canary.43

2 months ago

Core Changes

webpack: fix swcPlugins with relative paths: #92770
Node.js streams: Add forkpoint for logMessagesAndSendErrorsToBrowser: #92510
Node.js streams: Add forkpoint for createCombinedPayloadStream: #92511
Node.js streams: Add forkpoint for renderWithRestartOnCacheMissInValidation: #92512
Node.js streams: Add forkpoint for prerenderToStream: #92513
Perf: Fast path for trace() when opentelemetry is not enabled: #92678

Misc Changes

turbopack: gate ValueDebugFormat and ValueDebug behind debug_assertions: #92628
Add TurboMalloc::thread_park() to flush and collect on thread park: #92804
Stop using deprecated baseUrl: #92653
Turbopack: Use FrozenMap for module export information: #92802
pr-status: Show all participants in review thread overview: #92730
docs: draftMode alignment: #92794
Turbopack: remove webpack chunk detection: #92773
Turbopack: refactor ESM codegen generation: #92777
Fix monorepo @next/swc binary postinstall: #92813
Turbopack: shorter error for ChunkGroupInfo::get_index_of: #92814
Turbopack: properly set NODE_ENV for SWC plugins: #92579

Credits

Huge thanks to @sokra, @eps1lon, @bgw, @icyJoseph, @mischnic, and @timneutkens for helping!

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Next.js

v16.2.1-canary.42

2 months ago

Core Changes

Scope Safari ?ts= cache-buster to CSS/font assets only (Pages Router): #92580
Enable wasm plugins on windows arm: #92544
prefetchInlining: fix build crash on notFound() pages: #92806

Credits

Huge thanks to @lukesandberg and @acdlite for helping!

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Next.js

v16.2.1-canary.41

2 months ago

Misc Changes

Fix devlow-bench: tsconfig rootDir mismatch with package.json bin: #92800

Credits

Huge thanks to @mmastrac for helping!

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Next.js

v16.2.1-canary.40

2 months ago

Misc Changes

Fix turbo cache flag: use --force: #92796

Credits

Huge thanks to @mmastrac for helping!

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Next.js

v16.2.1-canary.38

2 months ago

Core Changes

Ensure x-nextjs-data header is only set during resolve: #92752

Credits

Huge thanks to @ijjk for helping!

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Next.js

v16.2.1-canary.37

2 months ago

Core Changes

Exclude trace files from directory deletion in builds: #92486
Switch segment prefetch cache miss response from 204 to 404: #92751

Misc Changes

Re-enable sccache: #92746

Credits

Huge thanks to @lukesandberg, @mmastrac, and @acdlite for helping!

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Next.js

v16.2.1-canary.36

2 months ago

Core Changes

Fix prefetch hints not being loaded during revalidation: #92625

Credits

Huge thanks to @acdlite for helping!

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Next.js

v16.2.1-canary.35

2 months ago

Core Changes

Update font data: #92704
test: use Turborepo pack task for test isolation: #92575
Compiler: Support boolean and number primtives in next.config defines: #92731
Upgrade React from 404b38c7-20260408 to fef12a01-20260413: #92728
Revert "refactor: write pages router export files directly to server/pages/": #92733

Misc Changes

[test] Stop using baseUrl: #92469
Turbopack: properly remove unused TS enums with scope hoisting: #88205
bench: improve render pipeline benchmark reliability: #92715
bench: add A/B branch comparison workflow to BENCHMARKING.md: #92721
docs: fix broken bun.sh Nextjs documentation link: #92698
fix(server-actions): skip type-only ExportNamed in pre-pass to prevent phantom registerServerReference: #92494
Turbopack: Add import.meta.glob support (Vite compat): #92640
turbo-tasks: Fix recomputation loop by allowing cell cleanup on error during recomputation: #92725
chore: Bump reqwest to 0.13.2 (Fixes Google Fonts with Turbopack for Windows on ARM64): #92713
TURBOPACK: support crsossOriginLoading: #92070

Credits

Huge thanks to @vercel-release-bot, @eps1lon, @mischnic, @timneutkens, @hamedniroomand, @sleitor, @sokra, @Badbird5907, @fireairforce, and @andrewimm for helping!

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Next.js

v16.2.1-canary.34

2 months ago

Core Changes

Node.js streams: Add forkpoint for error recovery: #92457

Misc Changes

Delete some dead turbo task functions: #92596
docs(cli): clarify that --debug-build-paths requires route group folders in paths: #92618
turbo-tasks: Drop output_dependent on immutable task completion: #92683

Credits

Huge thanks to @lukesandberg, @timneutkens, and @icyJoseph for helping!

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Next.js

v16.2.1-canary.33

2 months ago

Core Changes

feat(turbopack): add LocalPathOrProjectPath PostCSS config resolution: #91338
Fix segment explorer file pill accessibility: #92608
Perf: Only instrument clientComponentLoadTimes when used: #91385

Misc Changes

Remove a ton of turbo task functions from Issue trait items: #92623
feat(turbopack): change DiskFileSystem root to Vc<RcStr> for portable cache: #92603
Turbopack: remove unused ChunkableModules struct: #92606
Disable sccache temporarily: #92657

Credits

Huge thanks to @lukesandberg, @sokra, @mischnic, @timneutkens, and @mmastrac for helping!

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Next.js

v16.2.1-canary.32

2 months ago

Core Changes

Node.js streams: Add forkpoint for CacheComponents: #92444
Resolve compilerOptions.paths in tsconfigs without compilerOptions.baseUrl: #92277
Add codemod command to middleware deprecation warning: #92532
[partial fallbacks]: enable by default: #92627
refactor: write pages router export files directly to server/pages/: #90018

Misc Changes

Fix NextFontIssue IssueStage: CodeGen → Resolve: #92588
test: reduce writeToDisk memory test iterations to fix CI timeout: #92586
Refactor effects system: dedup/conflict detection, simplified Effect trait: #92300
fix(ci): improve Docker image cache streaming throughput and arch-awareness: #92617
Turbopack: extract inline base64 decode helper to shared @turbopack/base64 module: #92549
docs: add Link transitionTypes version history: #92624
CI: Download and run self-contained datadog-ci instead of using pnpm dlx or npx: #92546
turbopack: move CSS module composes validation from code generation to resolving: #92582
Drop turbo_tasks::function from ValueDebug trait items: #92593
Turbopack: fix filesystem watcher config not applying follow_symlinks(false): #92631
Bump swc to 63.1.1: #92604
chore(turbopack): upgrade qfiler to v0.3.0-alpha.4: #92558
Turbopack: cut number of client references in half: #92607
fix(ci): improve Docker image caching and native build skip optimization: #92633

Credits

Huge thanks to @sokra, @timneutkens, @hamidrezahanafi, @mmastrac, @lukesandberg, @aurorascharff, @bgw, @ztanner, @mischnic, @fireairforce, and @bgub for helping!

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Next.js

v16.2.1-canary.31

2 months ago

Core Changes

Don't swallow strings thrown in Server Components: #92592

Credits

Huge thanks to @eps1lon for helping!

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Next.js

v16.2.1-canary.30

2 months ago

Core Changes

Add next internal upload-trace: #92191
Perf: Add fast path to isAbsoluteUrl: #91389
Perf: Don't require watchpack in production: #91387
Request logging: Fix generate-params time being included in next.js time: #91386
Perf: Use charCodeAt in removeTrailingSlash: #91384
Perf: Cache regex in shouldServeStreamingMetadata: #91388
fix: scope "Pages Router only" comment to default export in next/error: #92566
Turbopack Build: Remove dev fouc from production bundle: #80935
fix(hmr): reconnect WebSocket after sleep/wake: #91416
Handle target option in React Compiler for Pages + React 18: #91500
[turbopack] Rust dependency caching via sccache: #91873
trace: detect rage restarts and deleted .next dirs: #92489

Misc Changes

turbo-tasks-backend: prevent duplicate task restores with restoring bits: #92389
docs: update details about unstable_retry() behavior: #91827
docs: link updateTag from cacheTag reference: #92379
[test] Stop using deprecated target: "es5" TypeScript compiler option: #92458
Docs: Instant docs updates: #92515
Turbopack: Improve unable to resolve next error: #91394
[test] Ensure incomplete minimum release age isn't propagated to fixture installs: #92568
test: skip .next and other build artifacts in writeFiles filter: #92578
Replace wasmer with wasmtime for SWC plugin WASM engine: #91533
docs: native db drivers with sync queries: #92572
turbopack: fix incremental build when module factories are restored from persistent cache: #92569
CI: Another attempt to fix pnpm versions for next-stats-action on canary: #92550
[turbopack] fix a debug_assert failure: #92581

Credits

Huge thanks to @sokra, @timneutkens, @devjiwonchoi, @aurorascharff, @eps1lon, @lukesandberg, @icyJoseph, @bgw, @mmastrac, and @wbinnssmith for helping!

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Next.js

v16.2.1-canary.29

2 months ago

Core Changes

Turbopack: switch from immutable token to path prefix: #92164
[build info]: distinguish between PPR and fully static routes in gSP: #92518
[build info]: omit symbol from top level gSP route: #92525

Misc Changes

CI: Fix issue with conflicting 'engines.pnpm' field in next-stats-action: #92533
Exclude use tests from react18 testing: #92542
Fix React18 tests for unstable_io: #92543

Credits

Huge thanks to @bgw, @mischnic, @gnoff, and @ztanner for helping!

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Next.js

v16.2.1-canary.27

2 months ago

Core Changes

fix: mention params and searchParams in blocking-route error messages: #92360
CPU prof: Write profiles to .next-profiles instead of .next/cpu-profiles: #92078
feat: generate root params types: #91019
fix: resolve function configs in unstable_getResponseFromNextConfig: #92501
Bundle skills/ directory into next/dist/skills: #92493
Node.js streams: Fork points: #92252
fix: replace docs/canary links with stable docs paths in error messages: #92528

Misc Changes

CI: Remove unused dependencies from next-stats-action dockerfile: #92485
docs: add note on React canary version to View transitions guide: #92315
docs: note PPR default in cacheComponents reference: #92378
Upgrade swc_core 57 -> 58, swc_sourcemap 9 -> 10, swc_plugin_runner 24 -> 25: #91532
docs: instant-navs draft, samples for build validation: #91850
docs: add middleware.mdx deprecation stub for discoverability: #92281
docs: improve blocking-route error page for params discoverability: #92359
docs: clarify cacheLife() cannot be called at module scope: #92326
perf: use whole_app_module_graph for get_compilation_issues MCP tool: #92473
Turbopack: Write trace file to .next-profiles: #92189
Update Rspack development test manifest: #92502
Update Rspack production test manifest: #92503
CI: Use pnpm lockfile for next-stats-action: #92488
docs: add note on installing server-only in data security guide: #92445
CI: Use minimumReleaseAge in pnpm workspace files: #92480

Credits

Huge thanks to @bgw, @aurorascharff, @lukesandberg, @icyJoseph, @timneutkens, @sokra, @vercel-release-bot, @abhishekmardiya, @bgub, @TooTallNate, and @gaojude for helping!

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Next.js

v15.5.15

2 months ago

Please refer the following changelogs for more information about this security release:

https://vercel.com/changelog/summary-of-cve-2026-23869

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Next.js

v16.2.3

2 months ago

[!NOTE] This release is backporting security and bug fixes. For more information about the fixed security vulnerability, please see https://vercel.com/changelog/summary-of-cve-2026-23869. The release does not include all pending features/changes on canary.

Core Changes

Ensure app-page reports stale ISR revalidation errors via onRequestError (#92282)
Fix [Bug]: manifest.ts breaks HMR in Next.js 16.2 (#91981 through #92273)
Deduplicate output assets and detect content conflicts on emit (#92292)
Fix styled-jsx race condition: styles lost due to concurrent rendering (#92459)
turbo-tasks-backend: stability fixes for task cancellation and error handling (#92254)

Credits

Huge thanks to @icyJoseph, @sokra, @wbinnssmith, @eps1lon and @ztanner for helping!

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Next.js

v16.2.1-canary.26

2 months ago

Core Changes

next-routing: middleware matching and app request URL normalization: #91859
docs: clarify serverless runtime behavior for use cache: #92232

Misc Changes

Adding more system info to the 'initialize project' trace: #92427
CI: Update and cleanup next-stats-action, force using pnpm 10.33.0: #92475
turbo-persistence: Use AtomicBool for is_empty() to avoid lock contention: #92481

Credits

Huge thanks to @ijjk, @andrewimm, @bgw, @wwenrr, and @lukesandberg for helping!

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Next.js

v16.2.1-canary.25

2 months ago

Core Changes

Include more context in macOS Rosetta 2 warning message: #92436
change the process name of builds: #92411
Fix styled-jsx race condition: styles lost due to concurrent rendering: #92459
turbo-tasks: fix hashed cell mode crash on task error (re-land #91576): #92108
Optimize how we track data for persistence: #89370
Route Handlers: Fix devRequestTimingInternalsEnd and Turbopack server HMR: #92271

Misc Changes

turbo-persistence: skip BlockCache for uncompressed (mmap-backed) blocks: #92390
docs: clarify that proxy/middleware matches static assets by default: #92441
turbo-persistence: pin referenced BlockCache entries to prevent eviction: #92361
[test] Skip flaky client-cache.parallel-routes in production and deploy: #92195
Fix sst inspect tool to respect CURRENT and stale sst files: #92414
[turbopack] add family name to many spans: #92415
scripts/pr-status: add reply-and-resolve-thread command: #92450
[test] Regenerate checked-in tsconfig.json files: #92455

Credits

Huge thanks to @sokra, @bgw, @lukesandberg, @icyJoseph, @eps1lon, and @wbinnssmith for helping!

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Next.js

v16.2.1-canary.24

3 months ago

Core Changes

chore: Upgrade to pnpm 10.x: #92283
fix(server-hmr): metadata routes overwrite page runtime HMR handler: #92273
Turbopack: Add a check for node version before allowing workerThreads: #91614

Misc Changes

turbo-persistence: optimize file syncing: #90542
Bump turborepo from 2.8.11 to 2.9.4: #92425
Turbopack: Remove turbo_tasks::apply_effects, use Effects::apply instead: #91858

Credits

Huge thanks to @bgw, @wbinnssmith, and @lukesandberg for helping!

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Next.js

v16.2.1-canary.23

3 months ago

Core Changes

Allow for parsing app route strings with and without slot names.: #92327

Misc Changes

use sorted inserts to improve builder performance: #91553
[tests]: remove unnecessary skipDeployment flags: #92423

Credits

Huge thanks to @lukesandberg, @ztanner, and @gnoff for helping!

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Next.js

v16.2.1-canary.22

3 months ago

Core Changes

Handle edge runtime in places that import node:stream: #92354
fix: add AGENTS.md at package root for agent discovery: #92376
Fix fallback route params case in app-page handler: #91737

Credits

Huge thanks to @timneutkens, @aurorascharff, and @ijjk for helping!

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Next.js

v16.2.1-canary.21

3 months ago

Misc Changes

next-core: deduplicate output assets and detect content conflicts on emit: #92292
docs: add deploy tests documentation to contributing guide: #92388

Credits

Huge thanks to @sokra and @ztanner for helping!

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Next.js

v16.2.1-canary.20

3 months ago

Core Changes

Improve existing dev server error message to suggest using it: #92317
Restart the next dev server if .next is deleted: #92135
feat: add experimental.swcEnvOptions for SWC preset-env configuration: #92272

Misc Changes

Update Rust toolchain to nightly-2026-04-02: #92288
docs: Ask AI agents to self-identify themselves in PR descriptions: #92235
Turbopack: Remove FileSystemPath::value_to_string in favor of ValueToStringRef::to_string_ref: #92284
[turbopack] use zero copy qfilter deserialization: #90574
Turbopack: Dedupe our two filesystempath extension/extension_ref functions: #92048
turbo-tasks: replace async resolve fns with custom Future types (ResolveRawVcFuture, ResolveVcFuture, ToResolvedVcFuture): #91554

Credits

Huge thanks to @feedthejim, @bgw, @wbinnssmith, @lukesandberg, @banchichen, and @sokra for helping!

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Next.js

v16.2.1-canary.19

3 months ago

Core Changes

Add MCP get_compilation_issues tool and NAPI method: #92062
Ensure app-page reports stale ISR revalidation errors via onRequestError: #92282
Move streamToUint8Array back to node-web-streams-helper.ts: #92263
fix: add @deprecated annotation to experimental.useCache: #92316

Misc Changes

turbo-tasks-backend: stability fixes for task cancellation and error handling: #92254
Add view transitions eval (agent-043): #92260
[turbopack] optimize RcStr parsing: #91773
ci: fix stats action: #92325
Revert "simplify session dependent tasks and add TTL support (#91729)": #92320
ci: remove deploy examples workflow from build-and-deploy: #92324

Credits

Huge thanks to @sokra, @aurorascharff, @lukesandberg, @ztanner, and @timneutkens for helping!

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Next.js

v16.2.1-canary.18

3 months ago

Core Changes

Add telemetry for adapterPath config usage: #92228
Node.js streams: First pass: #90500
fix: preserve HTTP access fallbacks during prerender recovery: #92231
Remove unnecessary ALS re-exports from entry-base.ts: #91527
Allow multi-level .localhost subdomains in dev origin check: #92262

Misc Changes

remove the loop from StaticSortedFile::lookup: #91688
Fix pr-status.js: retry on API errors and report timed-out jobs: #92205
docs: vt demo guide: #92249

Credits

Huge thanks to @lukesandberg, @ijjk, @timneutkens, @sokra, @ztanner, @icyJoseph, @unstubbable, and @ctate for helping!

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Next.js

v16.2.1-canary.17

3 months ago

Core Changes

Improve revalidateTag JSDoc to include guidance about required second parameter: #92176
partial fallbacks: adapter support for intermediate shells: #91902
docs: clarify id, filePath, and pathname in STATIC_FILE adapter output: #92227
feat: add NEXT_HASH_SALT env var for content-hash filename salting: #91871
Generate a CLI warning if using Rosetta 2 on Apple Silicon: #92220

Misc Changes

simplify session dependent tasks and add TTL support: #91729
disable bmi2 in qfilter: #92177
fix: pin 19 actions to commit SHA, extract 7 expressions to env vars: #92016
[test] Skip flaky cached-navigations tests: #92199
[test] Skip flaky prefetch-layout-sharing suite: #92198
Add internal header security guideline to AGENTS.md: #92128
docs: local images referenced by remote source: #92178
Update Rspack production test manifest: #92143
[test] Deflake allowed-dev-origins: #92211
Reapply "ci: add node-stream test coverage workflow (#89861)": #91664
Turbopack: trace fs.readdir calls: #92148
Fix DashMap read-write self-deadlock in task_cache causing hangs: #92210
[turbopack] use a single query parameter for cache busting: #92214
Docs/adapters review: #92223

Credits

Huge thanks to @lukesandberg, @aurorascharff, @dagecko, @eps1lon, @gaojude, @icyJoseph, @ztanner, @vercel-release-bot, @ijjk, @feedthejim, @mischnic, @sokra, and @bgw for helping!

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Next.js

v16.2.2

3 months ago

[!NOTE] This release is backporting bug fixes. It does not include all pending features/changes on canary.

Core Changes

backport: Move expanded adapters docs to API reference (#92115) (#92129)
Backport: TypeScript v6 deprecations for baseUrl and moduleResolution (#92130)
[create-next-app] Skip interactive prompts when CLI flags are provided (#91840)
next.config.js: Accept an option for serverFastRefresh (#91968)
Turbopack: enable server HMR for app route handlers (#91466)
Turbopack: exclude metadata routes from server HMR (#92034)
Fix CI for glibc linux builds
Backport: disable bmi2 in qfilter #92177
[backport] Fix CSS HMR on Safari (#92174)

Credits

Huge thanks to @nextjs-bot, @icyJoseph, @ijjk, @gaojude, @wbinnssmith, @lukesandberg, and @bgw for helping!

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Next.js

v16.2.1-canary.16

3 months ago

Core Changes

Add rust-fingerprint task and SCCACHE passthrough env: #92167
Improve error message for deprecated experimental.dynamicIO config: #92081
[turbopack] Fix CSS HMR on Safari: #92123

Misc Changes

Update Rspack development test manifest: #92142

Credits

Huge thanks to @mmastrac, @aurorascharff, @lukesandberg, and @vercel-release-bot for helping!

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Next.js

v16.2.1-canary.15

3 months ago

Core Changes

fix: handle file:// URLs from import.meta.resolve in cache handler path (fixes #73796): #90370
Turbopack: exclude metadata routes from server HMR: #92034
next.config.js: Accept an option for serverFastRefresh: #91968
Enable varyParams tracking for Cached Navigations: #92113
telemetry: set turboFlag correctly: #92149
Instant Validation: Allow unconfigured slots to render optionally: #92126

Misc Changes

TURBOPACK: support parse windows absolute path with single slash: #92076
Turbopack: statically evaluate path.sep: #92150
docs: add middleware bypass note to CDN caching guide: #92132
Turbopack: use same hash for immutable-static-hashes.json: #92157
[turbopack] replace regex with indexof: #92023
[test] Skip unstable_dynamicStaleTime tests due to flakiness: #92162
[test] Skip flaky segment-cache-refresh suite: #92163
Turbopack: createRequire(new URL("...", import.meta.url)): #92153
Add PPR evals and fix env loading for agent-eval 0.9.5: #92063
docs: document revalidateTag's required second argument in upgrade guide: #92134
Turbopack: support targeting even older browsers: #91563

Credits

Huge thanks to @VedantMadane, @wbinnssmith, @fireairforce, @unstubbable, @mischnic, @gnoff, @ijjk, @lukesandberg, @eps1lon, @gaojude, and @aurorascharff for helping!

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Next.js

v16.2.1-canary.14

3 months ago

Core Changes

[ftl] Include cause of route types: #92056
Upgrade React from 9627b5a1-20260327 to 74568e86-20260328: #92109

Misc Changes

docs: clarify that use cache requires async functions: #92101
Revert "turbo-tasks: add hashed cell mode for hash-based change detection without cell data": #92103
Move expanded adapters docs to API reference: #92115
ci: relax adapter results upload gate: #92127

Credits

Huge thanks to @aurorascharff, @unstubbable, @eps1lon, and @ijjk for helping!

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Next.js

v16.2.1-canary.13

3 months ago

Misc Changes

docs: opengraph-image papercuts: #92018
Update revalidateTag examples to use the new two-argument signature: #92065

Credits

Huge thanks to @icyJoseph and @aurorascharff for helping!

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Next.js

v16.2.1-canary.12

3 months ago

Core Changes

Upgrade React from 3cb2c420-20260324 to 9627b5a1-20260327: #92015
[experiment] Add useOffline flag with offline retry behavior: #92011
adapters: remove unused suffix code: #91997
[experiment] Add useOffline hook to expose offline state to userland: #92012
[turbopack] Don't use turborepo to build the docker image: #92029

Misc Changes

Use RcStr directly in napi(object) structs instead of converting to String: #92014
Rename SingleModuleReference::asset to SingleModuleReference::module: #92028

Credits

Huge thanks to @acdlite, @ztanner, @mmastrac, @sokra, and @bgw for helping!

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Next.js

v16.2.1-canary.11

3 months ago

Core Changes

[devtools] Show AggregateError.errors in the error overlay: #91835
Upgrade React from 8b2e903a-20260320 to 3cb2c420-20260324: #91905

Misc Changes

[cna] Upgrade to Biome 2.4 with Tailwind support: #86065
Rewrite agent rules to match bundled doc wording: #91995
Narrow the opengraph-image function return type: #91893

Credits

Huge thanks to @bgub, @eps1lon, @gaojude, and @remcohaszing for helping!

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Next.js

v16.2.1-canary.9

3 months ago

Core Changes

[Segment Bundling] Bundle static prefetches based on size: #91439

Credits

Huge thanks to @acdlite for helping!

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Releases

v16.3.0-canary.78

Misc Changes

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v16.3.0-canary.77

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v16.3.0-canary.76

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v16.3.0-canary.75

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v15.5.20

v16.2.10

v16.3.0-preview.5

Misc Changes

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v16.3.0-preview.4

Misc Changes

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v16.3.0-canary.67

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v16.3.0-canary.66

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v16.3.0-canary.65

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v16.3.0-canary.64

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v16.3.0-canary.63

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v16.3.0-canary.62

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v16.3.0-canary.61

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v16.3.0-canary.60

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v16.3.0-canary.59

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v16.3.0-canary.58

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v16.3.0-canary.57

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v16.3.0-canary.56

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v16.3.0-canary.55

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v16.3.0-canary.53

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v16.3.0-canary.52

Core Changes

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v16.3.0-canary.51

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v16.3.0-canary.50

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v16.3.0-canary.49

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v16.3.0-preview.3

Misc Changes

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