v15.6.0-canary.14

Core Changes

• [Cache Components] Allow sync IO inside console methods : #83843
• Upgrade React from 128abcfa-20250917 to 84af9085-20250917: #83959
• Build: Add .next/trace-build with high level trace: #83949

Misc Changes

• feat: next-rspack-binding: #82811
• Only send notification if canary fails on required jobs: #83953
• Turbopack: allow to read State from turbo_tasks::run: #83955
• Fix conclusion check for retry_test workflow: #83960

Credits

Huge thanks to @gnoff, @SyMind, @eps1lon, @sokra, and @timneutkens for helping!

v15.6.0-canary.13

Core Changes

• Remove inline CSS sourcemaps from next-devtools: #83917
• Development: Move all TypeScript related work in watcher together: #83912

Example Changes

• chore: improve oxlint example: #83898

Misc Changes

• fix: add the missing comma in the document example: #83932
• Turbopack: Document the reasons for the current design of parse_segment_config_from_source: #83919
• Turbopack: extract parse_source_map_comment: #83938
• Turbopack: enable nodelay for node.js pool socket: #83942

Credits

Huge thanks to @mischnic, @fufuShih, @timneutkens, @bgw, @TheAlexLichter, and @sokra for helping!

v15.6.0-canary.12

Core Changes

• OTel: use srcPage for templates when next.route is unavailable: #83911

Misc Changes

• Turbopack: RuleCondition support resourceQuery contains: #83468

Credits

Huge thanks to @devjiwonchoi and @fireairforce for helping!

v15.6.0-canary.11

Core Changes

• Development: Clarify TypescriptStatus in watcher: #83857
• Upgrade sharp dependency to version ^0.34.4: #83892
• Upgrade React from 5e0c951b-20250916 to 128abcfa-20250917: #83906
• Add native ts resolver docs link to transpile-config: #83914

Example Changes

• chore: add example with oxlint: #83842
• fix: correct typo 'incomming' to 'incoming' in with-mqtt-js example: #83887

Misc Changes

• Update generate-metadata.mdx: #81853
• Turbopack: remove lazy invalidated tasks: #83845
• Turbopack: remove Backend TaskState: #83846
• Turbopack: don't recompute empty parse results: #83883
• Turbopack: delete broken hmr benchmark: #83882
• Turbopack: only generate error string in error case: #83884
• docs: the as prop is still available in Pages Router: #83864
• Turbopack: map_module_batch: #83885
• Turbopack: Change run once signature to avoid exposing TaskId: #83844
• docs: Update command to use npx for tracing files: #83903
• Turbopack: ModuleGraphRef: #83890
• Update Rspack development test manifest: #83876
• Turbopack: make graph traversal sync: #83891
• chore: Fix test snapshot: #83901
• Update Rspack production test manifest: #83877
• docs: add next.config.ts Node.js native resolver: #83561
• Turbopack: add turbo_tasks::run to run in turbo tasks scope without a task: #83847
• Turbopack: fix double codegen of some merged modules: #83886
• Turbopack: add traces to merged module computation: #83908

Credits

Huge thanks to @yousefdawood7, @TheAlexLichter, @sokra, @timneutkens, @mischnic, @icyJoseph, @ericx0099, @leerob, @Copilot, @vercel-release-bot, and @devjiwonchoi for helping!

v15.6.0-canary.9

Core Changes

• fix(Rspack): resolve HMR unresponsiveness or unexpected full reload & update dev snapshot: #83480
• Allow next.config.mts for Node.js native TS resolver: #83556
• chore: Ensure Import Trace starts in a newline: #83638
• Development: Remove matchers.reload() on each request: #83829

Example Changes

• docs: Convert relative imports to @ aliases in examples: #83813

Misc Changes

• Turbopack: chunking debugging utilities: #83801
• Removed link to maintain text consistency: #83644
• Turbopack: rename some fields in fs: #83808
• Turbopack: validate CSS without computing all paths: #83810
• [test] Disable flaky navigation test: #83828
• docs: Type narrowing using LayoutProps, PageProps: #83692
• docs: implications of mutating cookies in server actions: #83691

Credits

Huge thanks to @SyMind, @mischnic, @Shireee, @devjiwonchoi, @eps1lon, @icyJoseph, @dharun36, and @timneutkens for helping!

v15.6.0-canary.10

Core Changes

• Upgrade React from 8a8e9a7e-20250912 to 5e0c951b-20250916: #83850
• Bump typescript 5.9.2: #83833
• Allow headers, rewrites and redirects to be defined as sync functions: #83743
• Turbopack: Optimize addedRoutes and removedRoutes calculation: #83840
• [next-config-ts] Set Node.js native TS loader fallback flag to process.env: #83832

Misc Changes

• Only retry if canary fails on required jobs: #83851
• docs: Fix self-referential link to Middleware in middleware.mdx: #83854
• Update Rspack production test manifest: #83826

Credits

Huge thanks to @eps1lon, @devjiwonchoi, @kachkaev, @timneutkens, @bgw, and @vercel-release-bot for helping!

v15.6.0-canary.8

Core Changes

• [Breaking] Flat config as default in @next/eslint-plugin-next: #83763
• fix: Rspack splitChunks.chunks regex: #83670
• Revert "Turbopack: Remove matchers.reload() call on each request": #83819
• fix: unstable_cache should perform blocking revalidation during ISR revalidation: #83820

Misc Changes

• docs(metadata): align default function export name with file name: #83796
• [turbopack] Remove the should_track_children parameter of the turbo tasks backend: #83258
• docs(data-security): add bun package manager example: #83735
• Update next-intlayer reference in i18n doc: #83761
• Update Rspack production test manifest: #83790
• Update Rspack development test manifest: #83791

Credits

Huge thanks to @dwrth, @lukesandberg, @obendev, @aymericzip, @devjiwonchoi, @SyMind, @vercel-release-bot, @timneutkens, and @ztanner for helping!

v15.6.0-canary.7

Core Changes

• Turbopack: Remove matchers.reload() call on each request: #83720

Credits

Huge thanks to @timneutkens for helping!

v15.6.0-canary.6

Core Changes

• [OTel] fix: Root span name should not include high cardinality URL: #75416

Misc Changes

• Emit build error when 'use cache' directive is misspelled: #83756

Credits

Huge thanks to @povilasv and @unstubbable for helping!

v15.6.0-canary.5

Core Changes

• Upgrade React from f3a80361-20250911 to 93d7aa69-20250912: #83729
• Upgrade React from 93d7aa69-20250912 to 8a8e9a7e-20250912: #83742
• Fix reentrancy of unhandledRejection filtering: #83741
• Fix type for unhandled rejection handler process.removeListener: #83748

Misc Changes

• [Turbopack] Remove ssr-data module context: #83626
• CI: use KV for test timing data: #83745

Credits

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