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!

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!

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!

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!

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!

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!

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!

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!

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!

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!