v15.3.0-canary.37

Core Changes

• [dev-overlay] sync horizontal scrollbar style: #77769
• [dev-overlay] Read issueCount from non-async errors array: #77821
• [dev-overlay] Fix error dialog resizing logic: #77830
• Turbopack Build: Optimize instrumentation hook generation: #77832
• [next-server] skip setting vary header for basic routes: #77797
• Lazily call refreshTags and getExpiration: #77779
• Add debug logging to default cache handler and "use cache" wrapper: #77827
• [ts-next-plugin] fix: properly exit when failed to initialize: #77842
• Alternate bundler: correctly inject react refresh loader: #77713
• [dynamicIO] Fix dev warmup: #77829

Misc Changes

• Turbopack: omit empty source map when code starts with a new line: #77734
• [next-lint] test: remove eslint config snapshot testing: #77818
• Turbopack: avoid deriving css source map path from generated code path: #77735
• Turbopack: pass asset to chunk_path to allow to use content hash later: #77772
• Docs IA 2.0: Add Deep Dive section placeholder: #77724
• Turbopack: use document.currentScript instead of chunk path literal: #77773
• Turbopack: don't include client-fs assets in NFT: #77799
• Turbopack: enable content hashing in production: #77775
• Turbopack: correctly track await import("path") in static analysis: #77811

Credits

Huge thanks to @sokra, @devjiwonchoi, @raunofreiberg, @delbaoliveira, @timneutkens, @mischnic, @huozhi, @unstubbable, and @ahabhgk for helping!

v15.3.0-canary.36

Core Changes

• [next-ts-plugin] fix: language service crashes / metadata plugin not working: #77213
• [dev-overlay] always display bundler name on version info: #77739

Misc Changes

• fix(turbopack): Apply hygiene if mangling is disabled: #77815

Credits

Huge thanks to @devjiwonchoi and @kdy1 for helping!

v15.3.0-canary.35

Core Changes

• Turbopack: fix sideEffects matching for non-relative globs: #77693
• Revert "Upgrade @playwright/test and cleanup internal APIs": #77814

Misc Changes

• [test] fix bad test fixuture for perf test: #77804
• [test] fix react 19.1 related tests: #77809
• doc: onNavigate follow-up: #77805

Credits

Huge thanks to @huozhi, @gaojude, and @mischnic for helping!

v15.3.0-canary.34

Core Changes

• Client instrumentation: onRouterTransitionStart: #77791
• Turbopack: log telemetry events when TurbopackInternalErrors occur: #77660
• Rename alternate bundler package name: #77793

Credits

Huge thanks to @acdlite and @wbinnssmith for helping!

v15.3.0-canary.33

Core Changes

• Ignore an existing HMR refresh hash cookie with next start: #77714
• Turbopack build: Replace process.env.TURBOPACK usage: #77783

Misc Changes

• doc: onNavigate: #77647
• Update bundler production test manifest: #77764
• doc: useLinkStatus doc follow-up: #77790
• Update Turbopack development test manifest: #77766
• [ci] remove needs build-native for lint job: #77787
• test(examples): update turbopack manifest: #75092

Credits

Huge thanks to @gaojude, @unstubbable, @huozhi, @JamBalaya56562, and @timneutkens for helping!

v15.3.0-canary.32

Core Changes

• [dev-overlay] remove text wrap for terminal: #76953
• Upgrade React from 63779030-20250328 to 040f8286-20250402: #77742
• Optimize server runtime bundles: #77723
• Turbopack Build: Remove cases of process.env.TURBOPACK: #77757
• [dev-overlay] Fix unactionable useLayoutEffect warning if React 18 is used: #77737
• [dev-tools] Fix flashing of disabled state on indicator: #77727
• Webpack build: Add compiled in x seconds in missing places: #77751

Misc Changes

• chore(turbo-tasks): Audit all remaining uses of Vc in a struct: #77756
• docs: instrumentation-client follow up: #77752
• [test] Get rid of unrelated "Invalid hook call" error from tests using styled-components: #77736
• Turbopack: keep side-effect-full imports: #76545
• Docs: Recommend inline use server and update examples: #77770
• Revert "Docs: Recommend inline use server and update examples": #77771
• doc: useLinkStatus: #77648
• Update Turbopack production test manifest: #77767
• Update bundler development test manifest: #77765
• [docs] fix lint issue in use link status doc: #77785

Credits

Huge thanks to @bgw, @leerob, @devjiwonchoi, @unstubbable, @timneutkens, @eps1lon, @raunofreiberg, @mischnic, @delbaoliveira, @gaojude, and @huozhi for helping!

v15.3.0-canary.31

Core Changes

• Reapply "Turbopack: layout segment optimization for Pages" (#77339): #77696
• feat(next/image): support new URL() for images.remotePatterns: #77692

Misc Changes

• Update bundler production test manifest: #77707

Credits

Huge thanks to @huozhi and @styfle for helping!

v15.3.0-canary.30

Core Changes

• [dev-overlay] Harden types when handling hydration mismatches: #77334
• [dev-overlay] Fix ref warning when Pages Router with React 18 is used: #77726
• add support for cssmodules-pure-no-check to allow global CSS features like View Transitions: #77321
• [dev-overlay] Only warn once per invalid sourcemap: #77444
• [dynamicIO] only abort once per prerender: #77747
• Turbopack build: Move Turbopack marker to SERVER_FILES_MANIFEST: #77711

Example Changes

• chore(examples): remove examples that can be v0'd: #77349
• Alternate bundler example: use canary version: #77754

Misc Changes

• chore(turbopack): Make TaskInputs use ResolvedVc: #77700
• Getting Started Docs: Add Metadata and OG images page: #74077
• Getting Started Docs: Add Upgrade page: #77717
• Docs IA 2.0: Rename Examples to Guides: #77722
• build: Update swc_core to v19.0.0: #77669
• Add Josh to Turbopack team for created-by label: #77738
• Turbopack: use better ident for worker chunk group: #77731
• chore(turbo-tasks): Remove redundant ast-grep lint rule: #77701
• fix(docs): update error type in notFound function description: #77503
• Update bundler development test manifest: #77706
• Update Turbopack production test manifest: #77709
• Turbopack: refactor resolve_url_reference to avoid chunk_path: #77732
• Update Turbopack development test manifest: #77708
• Port "app-document" test to e2e: #77748
• [ci]: skip build-windows job for docs only change: #77743

Credits

Huge thanks to @bgw, @eps1lon, @delbaoliveira, @jantimon, @kdy1, @padmaia, @sokra, @Bernardoow, @gnoff, @samcx, @mischnic, @huozhi, @wbinnssmith, and @timneutkens for helping!

v15.3.0-canary.29

Core Changes

• legacyBehavior deprecation error should only trigger once: #77687
• Pass only required props to NonIndex: #77685
• Revert "fix: make sure body can be read using nodejs runtime in middleware": #77690

Misc Changes

• pack-next: use default --js-build as option instead of --no-js-build: #77686
• Turbopack: Allow overriding tsconfig path via next-config: #77563
• Scripts: migrate unpack-next to TypeScript: #77538

Credits

Huge thanks to @ztanner, @iamkd, @huozhi, and @wbinnssmith for helping!

v15.3.0-canary.28

Core Changes

• Revert "Remove useSyncExternalStore from useIsDevRendering (#77651)": #77672
• Upgrade React from 313332d1-20250326 to 63779030-20250328: #77643
• Turbopack build: Add marker for when a build used Turbopack: #77674
• feat(images): use experimental isrFlushToDisk option to prevent writing optimized images to cache: #70645
• doc: instrumentation-client: #77649
• Alternate bundler: use equivalent native plugins for built-in plugins: #77355
• Resolve Viewport separately from Metadata: #77427
• fix(turbopack): Suppress logging for short no-op turbopack HMRs: #76924
• Turbopack build: Fix node-file-trace test: #77641
• Turbopack build: Implement error when using next start without --turbopack: #77678

Misc Changes

• Turbopack: add tracing for fetch calls: #77673
• [test] Update stale snapshots: #77680
• Turbopack: fix bug in handling of module batches: #77638

Credits

Huge thanks to @acdlite, @sokra, @eps1lon, @timneutkens, @isBatak, @gaojude, @wbinnssmith, @gnoff, and @bgw for helping!