v15.4.0-canary.98

Core Changes

• [devtools] fix style of issue count label: #80854
• [devtools] Remove unused footer buttons: #80864
• [devtools] Hide issue count on empty state: #80898
• [turbopack] Add user friendly names to trace labels: #80388
• Upgrade React from 197d6a04-20250424 to fa3feba6-20250623: #80804

Misc Changes

• Turbopack Build: Implement outputFileTracingIgnores and outputFileTracingIncludes: #80890
• test(turbopack): Use mimalloc for codspeed to make it realistic: #80877
• [turbopack] Add execution tests to demonstrate a bug: #80918
• build(turbopack): Update swc_core to v29.2.0: #80919
• test(codspeed): Make codspeed concurrent on canary branch: #80928
• Turbopack: respect PURE comments for minification: #80893
• Update Turbopack production test manifest: #80932
• Update Turbopack development test manifest: #80933
• Turbopack: slightly more correct ModuleId type: #80605

Credits

Huge thanks to @timneutkens, @kdy1, @lukesandberg, @devjiwonchoi, @eps1lon, and @mischnic for helping!

v15.4.0-canary.97

Core Changes

• Turbopack: fix chunking context caching: #80862
• [devtools] replace the old error overlay with the issues tab view: #80814
• [devtools] fullscreen mode should not be draggable: #80845
• Turbopack: add task execution reason to tracing: #80861
• [devtools] Allow opting out of environment feature flags: #80897
• [devtools] fix: build error should share the issue content layout: #80850
• [devtools] increase max-width/height limit: #80846
• [devtools] memorize tab in session storage: #80900
• Check cache busting search params on all RSC requests: #80669
• Perf: Use canonicalUrl from prefetch for dynamic RSC requests: #80817
• Fix PPR no fallback case: #80908
• Add comment explaining staticPathKey vs ssgCacheKey: #80911
• add turbo tasks fuzzing: #79372

Misc Changes

• Turbopack: fix this when accessing named properties of namespace: #80896
• docs: add explanation of --disable-git command: #80882
• refactor(turbo-tasks-backend): Use ringmap crate instead of custom DequeSet type for aggregation updates: #80867
• fix(test/integration): Check the right thing when resetting the server-side-dev-errors tests: #80873
• Update Rspack production test manifest: #80886
• Update Rspack development test manifest: #80885
• fix(turbo-tasks): Temporarily disable immutable task optimizations: #80914

Credits

Huge thanks to @sokra, @devjiwonchoi, @mischnic, @eps1lon, @huozhi, @gaojude, @nebrelbug, @bgw, and @ijjk for helping!

v15.4.0-canary.96

Core Changes

• Turbopack: CSS Global Import Validation for Pages: #80585
• [devtools] overlay backdrop visibility hidden when not fullscreen: #80844
• Allow intercepting dynamic routes to be partially prerendered: #80851

Misc Changes

• build(turbopack): Update swc_core to 29.1.4: #80872
• perf(turbopack): Mark more async fns without await as sync: #80642
• Switch back to upstream lightningcss: #80863
• Turbopack: list assert/strict as external: #80884
• Update Turbopack production test manifest: #80888
• Update Turbopack development test manifest: #80887
• Fix preview builds for forks: #80833
• [test] Account for React's usage of eval in dev: #80857

Credits

Huge thanks to @kdy1, @HerringtonDarkholme, @mischnic, @Cy-Tek, @eps1lon, @devjiwonchoi, and @unstubbable for helping!

v15.4.0-canary.95

Core Changes

• fix to use https urls in meta data images when using experimental-https: #80276
• Add a fallback for the mdx-components file: #59693
• Revert "Respond with 404 for unknown server actions (#80613)": #80662
• [devtools] segment explorer tab: #80805
• [devtools] fix: error overlay closes when footer is clicked: #80513
• fix: respond with 404 for unrecognized action ids: #77012
• [turbopack] Enable debug assertions in CI: #80739
• Turbopack Build: Implement browserslist for CSS / JS: #80603
• Fix fallback: true cache-control: #80865
• Turbopack: scope hoisting: #79459
• [devtools] refactor segment explorer styles: #80848

Misc Changes

• build(turbopack): Update swc_core to v29.1.2: #80659
• Update Turbopack production test manifest: #80836
• Turbopack Build: Fix metadata-edge test: #80842
• [test] separate hmr env test: #80802
• Turbopack Build: Fix edge-config-validation test: #80847
• [turbopack] Delete FunctionId: #80809
• Turbopack Build: Update manifest: #80859

Credits

Huge thanks to @schoenwaldnils, @remcohaszing, @kdy1, @unstubbable, @huozhi, @devjiwonchoi, @lubieowoce, @timneutkens, @lukesandberg, @ijjk, and @mischnic for helping!

v15.4.0-canary.94

Core Changes

• [segment explorer] handle edge and pages router: #80668
• [segment explorer] handle builtin not-found: #80607
• [devtools] fix: adjust width for responsiveness: #80777
• [build] remove obsolete module field alias for barrel optimized pkg: #80769
• [segment explorer] handle custom global-error segment: #80685
• [devtools] storybook: port utils to be reusable: #80726
• [segment explorer] display navigation error boundaries: #80691
• [devtools] set up panel ui issues tab infra: #80727
• [devtools] add correct scrollbar to dialog body: #80776
• [devtools] panel ui issues tab sidebar: #80728
• [devtools] panel ui issues tab content: #80729
• [devtools] add fullscreen mode: #80788
• [devtools] proper draggable for header and footer only: #80792
• [segment explorer] handle display loading: #80698
• [segment explorer] handle custom error boundary: #80714
• [segment explorer] display default page in segment explorer: #80716
• Add htmlrewriter to default server externals: #80819

Misc Changes

• [segment-explorer] Fix segment alignment: #80797
• chore: Dynamic error does not change dynamicParams: #80796
• fix(turbopack): Fix usage of HELPERS of SWC: #80791
• Turbopack: use correct mark for swc: #80789

Credits

Huge thanks to @eps1lon, @huozhi, @icyJoseph, @kdy1, @devjiwonchoi, @mischnic, and @ijjk for helping!

v15.4.0-canary.93

Core Changes

• [turbopack] Update Napi CLI to the latest 2x release: #80697
• Revert "[ppr] RDC for RSCs": #80794

Misc Changes

• Update Turbopack production test manifest: #80785
• Update Turbopack development test manifest: #80786
• Turbopack: Don't convert script to module when using preset-env: #80724

Credits

Huge thanks to @lukesandberg, @timneutkens, and @eps1lon for helping!

v15.4.0-canary.92

Core Changes

• [devtools] Fix Turbopack indicator: #80753
• Downgrade React from 79d9aed7-20250620 to 197d6a04-20250424: #80762
• devtools: couple restart dev server UI with persistent cache flag: #80751
• [devtools] panel ui responsiveness: #80732

Misc Changes

• fix(turbopack): Do not run inject_helpers pass multiple times: #80755
• fix: fixed merge driver output, does not expect debugging messages to output on stdout: #80736

Credits

Huge thanks to @eps1lon, @kdy1, @wyattjoh, @ztanner, and @devjiwonchoi for helping!

v15.4.0-canary.91

Core Changes

• perf(next-swc): Remove needless JSON conversion: #80671

Credits

Huge thanks to @kdy1 for helping!

v15.4.0-canary.90

Core Changes

• chore(swc-wasm): Fix and clean up various issues with swc-wasm tests: #80471
• Add onBuildComplete adapter hook: #80446
• [ppr] RDC for RSCs: #79638
• docs: add csp and content disposition type: #80735
• omit searchParam data from FlightRouterState before transport: #80734
• feat(turbopack): Print a warning about performance when starting with an invalidated cache: #80631

Misc Changes

• [turbopack] Reduce indirection in turbo-tasks dispatching: #80695
• [turbopack] Reorganize the fields in LocalTaskType to avoid an allocation: #80738

Credits

Huge thanks to @bgw, @lukesandberg, @ijjk, @wyattjoh, @sommeeeer, and @ztanner for helping!

v15.4.0-canary.89

Core Changes

• fix: rspack code analyzer should only handle javascript module: #80711
• [devtools] port call stack: #80550
• [devtools] port runtime error handling to hook: #80567
• Upgrade React from 79d9aed7-20250620 to 06e89951-20250620: #80730

Misc Changes

• add git merge driver for errors.json: #80722
• Update Rspack development test manifest: #80705
• Update Rspack production test manifest: #80704
• Update Turbopack development test manifest: #80707
• Update Turbopack production test manifest: #80706
• Turbopack: Allow distdir in project directory, outside of the application: #80683

Credits

Huge thanks to @lubieowoce, @SyMind, @devjiwonchoi, and @timneutkens for helping!