v16.3.0-canary.42

Misc Changes

• [turbopack] Treat local const assignments as side-effect free: #94294
• [turbopack] Remove worker helpers from the default runtime: #94372
• Extract App Shell from static prefetches: #94095
• docs: correct wording and casing in turbopack tracing guide: #94469
• Turbopack: refactor ServerActionManifestAsset to be lazy: #94377
• docs: typos and errors outside docs, error, examples folders: #94472
• Update vendored lodash to 4.18.1: #94473
• chore: reword cacheComponents jsDoc to lead with partial prerendering: #94474
• Upgrade React from f0dfee38-20260529 to 43bcbf80-20260603: #94440
• Turbopack: Perform issue filtering without turbo-task functions: #93885
• Keep Instant DevTools locked when opening error overlay: #94357
• Revert "ci: run Linux Playwright jobs in prebuilt Microsoft container (#93794)": #94366
• fix(deps): bump @vercel/nft@1.10.2: #93979
• Simplify turbo-tasks-backend: collapse single-impl traits and remove redundant Arc layers: #93983
• Turbopack: refactor to use get_ecma_transform_rule: #94485
• [ci] Switch release-next-rspack to a more explicit environment name: #94480
• [ci] Set persist-credentials: false for all GH actions: #94214
• Turbopack: fixup cache handler tracing: #94477
• [turbopack] Remove turbotask functions from trait ResolveOrigin: #94324

Credits

Huge thanks to @sampoder, @acdlite, @RazinShafayet2007, @mischnic, @icyJoseph, @timneutkens, @vercel-release-bot, @bgw, @devjiwonchoi, @styfle, and @lukesandberg for helping!

v16.3.0-canary.41

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!

v16.3.0-canary.40

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: #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!

v16.3.0-canary.39

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!

v16.3.0-canary.38

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!

v16.3.0-canary.37

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!

v16.2.7

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!

15.5.19

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!

v16.3.0-canary.36

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!

v16.3.0-canary.35

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!