next 16.0.0 release notes

semverse.

next 16.0.0 release notes · Semverse

Turbopack: remove css_environment from Environment: #83487
Turbopack: Don't add client_runtime_entries to Route Handler compilation: #83655
Turbopack: Only load capsize-font-metrics once: #83654
[CI] Fix GitHub Actions matrix configuration for React versions: #83677
fix(Turbopack): Enable scope hoisting for large files or module counts: #83399
[turbopack] Lazily construct resolved::Requests for EsmAssetReference: #83662
Update content-security-policy.mdx, fix development environment error: #83665
tests: disable flaky deployment test while investigating upstream: #83705
[test] Update snapshots for Rspack + React 18: #83712
Docs/sep paper cuts: #83689
[Turbopack] Remove ssr-data module context: #83626
CI: use KV for test timing data: #83745
Emit build error when 'use cache' directive is misspelled: #83756
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
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
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
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
Turbopack: RuleCondition support resourceQuery contains: #83468
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
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
Add Descope to Auth libraries list: #83968
[turbopack] Track task durations in the task_statistics file: #83522
[turbopack] Remove the issue_path feature and related functionality: #83920
Turbopack: use turbo_tasks::run in next.js to avoid task memory leak: #83848
Update Rspack production test manifest: #83934
Update Rspack development test manifest: #83933
Turbopack: add test case that checks memory leak: #83849
Turbopack: read project strongly consistent in project_update: #83974
Fix output comparison when checking conclusion of required jobs: #83986
Turbopack: JsAnalyzer parse AssignExpr: #83962
Turbopack: less eager manifest generation: #83736
Turbopack: use depth as priority for merged module info: #83909
Turbopack: "connect" tasks in turbo_tasks::run too: #83975
Update Rspack production test manifest: #83979
Update Rspack development test manifest: #83980
Turbopack: Make transient tasks root tasks too when called in turbo_tasks::run: #83976
Turbopack: trace state changes: #83977
[turbopack] cleanup analyzer: #83983
[Turbopack] Fix AST traversal for this in function default parameters: #83746
[turbopack] Consolodate logic for visiting functions to simplify state management: #82763
[turbopack] Track the scope in which variables are assigned: #82845
[turbopack] Set liveness of exports based on assignment analysis: #82802
Turbopack: trace all state changes: #84053
docs: We have dropped the CORS example linked: #84065
docs: add pageExtensions note to Middleware and clarify default filename: #84045
Fix TypeScript type error in example code: #84041
Turbopack: fix test case and update project_update to turbo_tasks::run too: #83978
Turbopack: run tests with multiple threads: #84074
Turbopack: flush Node.js worker IPC on error: #84077
Turbopack: parallelize scope hoisting computation: #83904
Add test for JS resource size on navigation: #83731
Update Rspack development test manifest: #84061
Update Rspack production test manifest: #84060
Turbopack: Document automatic Babel config support: #84002
docs: Fix the title/path of the turbopack page on pages router: #84001
Turbopack: remove references from ChunkData: #84076
Turbopack: include availability hash in the ident of evaluated chunks groups: #84082
[turbopack] s/analyse/analyze/g: #84112
[Turbopack] avoid attaching referenced output assets to chunks: #75933
fix(docs): Fix links in UPGRADING.md: #84114
docs: improve dynamic routes example in project structure page: #84086
docs: onRequestError request header type: #83988
Turbopack: Improve persistent caching test case: #83205
Turbopack: add more details to the graph panic: #84126
docs: Cookies store access is async: #83987
Bump Rust to nightly-2025-09-21: #83415
Upgrade CodSpeed action and add analyzer benchmarks: #84135
Turbopack: fix run_once when returning error: #84142
[turbopack] Conditionally collect affecting sources: #83921
Turbopack: slightly improve resolve_source_map_sources: #84147
Turbopack: RawEcmascriptModule: #81806
Turbopack: add more details to the graph panic: #84143
test: split app-middleware test per describe: #84130
Update Rspack development test manifest: #84117
script: improve release log generation: #83686
Turbopack: split task_execution_completed into multiple methods: #84170
Turbopack: only generate field if spans are enabled: #84184
Turbopack: support more dynamic request with import map: #84178
[turbopack] defer a value_to_string operation until we need it: #84188
Update Rspack production test manifest: #84165
Revert "[turbopack] Set liveness of exports based on assignment ana…: #84207
Turbopack: increase retry duration, reduce busy looping when there is other work: #84171
Turbopack: Try to avoid block_in_place in scope: #84172
[turbopack] Remove some bitmap clones: #84193
Turbopack: lazier manifests, part deux: #84191
Turbopack: avoid panic on updating output when a task was cancelled: #84214
docs: nav_title for long unbroken words: #84233
Turbopack: Use RawValue for mappings inside SourceMapJson: #84208
Update Rspack development test manifest: #84218
Turbopack: fix NFT of readFileSync of relative path: #84155
Turbopack: improve references benchmark: #84223
Update Rspack production test manifest: #84217
Turbopack: drop ASTs when only tracing: #84185
docs: Include more detailed instructions on excluding from common AV solutions, including macOS Gatekeeper: #84206
Turbopack: trace fs-extra calls: #84246
[test] Overhaul Undefined default export test suite: #84235
Turbopack: Scope with work queue: #84225
[test] Make Undefined default export an e2e test suite: #84240
[turbopack] Conditionally create pages router data endpoints.: #84194
Turbopack: parallel connect children: #84173
Turbopack: count turbo_tasks::run as foreground tasks to avoid being idle: #84245
Turbopack: make persistent caching log line more clear: #84262
Turbopack: make tracing nicer: #84263
docs:Small improvement on the contribution guide for clarity: #84200
Turbopack: Remove not-very-useful "Finished writing to disk in" log line: #84244
Turbopack: follow up changes from parallel children: #84219
[turbopack] Simplify take_issues and peek issues: #84199
Update Rspack development test manifest: #84260
Update Rspack production test manifest: #84259
Turbopack: Scope with work queue: #84225
[test] Make Undefined default export an e2e test suite: #84240
[turbopack] Conditionally create pages router data endpoints.: #84194
Turbopack: parallel connect children: #84173
Turbopack: count turbo_tasks::run as foreground tasks to avoid being idle: #84245
Turbopack: make persistent caching log line more clear: #84262
Turbopack: make tracing nicer: #84263
docs:Small improvement on the contribution guide for clarity: #84200
Turbopack: Remove not-very-useful "Finished writing to disk in" log line: #84244
Turbopack: follow up changes from parallel children: #84219
[turbopack] Simplify take_issues and peek issues: #84199
Update Rspack development test manifest: #84260
Update Rspack production test manifest: #84259
[test] Ignore pnpm update notifier: #84328
[test] Stop downloading unused test browsers when generating PR stats: #84329
docs: remove repeated to: #84325
Turbopack: Use more robust logic for absolute and percent-encoded URLs in source maps received from loaders: #84255
Turbopack: only replace edge dynamic calls in dev: #84354
[turbopack] Remove a bunch of dead code from the source map implementation: #84318
Turbopack: prevent duplicate NFT modules: #84369
docs: Remove AMP docs: #84357
docs: Type helpers don't need to be imported: #84265
Turbopack: Add docs for debugIds option: #84375
Remove references to size metrics in next build from our docs: #83823
Bump to swc v42: #83477
Turbopack: skip invalidating a task on cell/output change when the dependency is outdated: #84376
Turbopack: trace module.createRequire: #84335
Update failing e2e deploy tests: #84395
Turbopack: Webpack loader this.fs.readFile: #83313
Improve tests: #84374
Revamp Next.js boilerplate: #81945
Add test for twoslash: #84267
Docs/project structure polish: #84386
Bump to swc v44: #84420
Turbopack: don't fail for parse errors in tracing: #84408
Update Rspack development test manifest: #84365
Update Rspack production test manifest: #84366
[ci]: remove PPR-specific CI jobs: #84439
docs: Verbose troubleshooting for unconfigured hosts: #84271
Update Rspack production test manifest: #84398
Add gt-next to i18n list: #84396
[ci]: fix build-output-prerender to support segment cache env: #84467
[ci]: fix app-static snapshots with clientSegmentCache: #84468
Turbopack: Only benchmark file IO on next dev: #84474
Turbopack: improve incremental build performance when deployment id changes: #84460
fix: Missing link in Lazy Loading docs: #84473
docs: simplify streaming metadata: #84253
make withRspack idempotent: #84482
Turbopack: Use strongly consistent reads in random_change unit test: #84505
Update Rspack development test manifest: #84480
Update Rspack production test manifest: #84481
[ci]: remove test from segment cache manifest: #84507
[ci]: de-flake client cache test: #84517
Revert "Turbopack: skip invalidating a task on cell/output change when the dependency is outdated": #84526
next mcp router
Revert "next mcp router"
test: Use nextTestSetup in scss tests: #84501
[turbopack[ Use the configured hasher to implementh Hash for AutoMap and AutoSet: #84542
Turbopack: debug ids for server chunks: #84557
CI: Enable experimental.isolatedDevBuild for test-unit: #84559
[test]: convert prefetching tests to be segmentCache compatible: #84521
CI: Enable experimental.isolatedDevBuild for test-prod: #84556
Add .next/dev/types to CNA templates tsconfig include: #84566
CI: Enable experimental.isolatedDevBuild for test-integration: #84558
Update Rspack development test manifest: #84548
Add a webpack flag to create next app. Ensure that if you set it or decline turbopack we set the --webpack flag on the generated project: #84476
Update Rspack production test manifest: #84549
CI: Enable experimental.isolatedDevBuild for test-dev: #84562
[test] Unflake static image test: #84535
Turbopack: Lower the IO concurrency limit in CI tests: #84508
Add documentation for experimental adapters handling: #83737
Turbopack: improve next/dynamic eventual consistentcy: #84560
fix hidden errors in router-act: #84603
fix(cna): use correct postcss plugins syntax: #79949
Turbopack: absolute requests in webpack loader: #84575
Update Rspack development test manifest: #84592
Update Rspack production test manifest: #84593
Turbopack: Remove workaround in hyper for rustc miscompilation bug on macos intel: #84578
Turbopack: add manual worker count override: #84454
Turbopack: don't ignore TS parse errors: #84597
Add middleware to routes order doc: #84618
[create-next-app]: prompt to use recommended options: #84570
Update labeler: #84623
Turbopack: use mmap advise to help the OS preloading: #84379
Turbopack: skip invalidating a task on cell/output change when the dependency is outdated: #84551
Turbopack: follow-up changes from untracked tracing: #84629
Turbopack: sourcemaps for JSON modules: #84611
Turbopack: avoid race condition when updating cells: #84598
docs: update core documentation for Turbopack as default bundler: #84282
Update Rspack development test manifest: #84631
[turbopack] Only send the filesystem caching timing messages for slow events: #84646
docs: experimental.isolatedDevBuild: #84656
docs: add note clarifying project root in monorepo: #84628
Fix flakey overlay feedback test: #84662
[ci]: update flake detection to only run in Turbopack: #84659
[ci]: move router-act to top level testing utils: #84653
[tests]: de-flake client-cache.parallel-routes.test.ts: #84655
[create-next-app]: add eslint to default template: #84661
Update Rspack production test manifest: #84630
[test] Assert on stable error codes: #84671
Turbopack: convert HashMap to IndexMap for deterministic tasks: #84641
Add note about $ACTION_ properties, remove reference to .entries(): #84459
Fix typo on welcome page: #84715
Rspack: Fix lockfile test on rspack: #84707
[turbopack] Emit a warning when there are too many matches from a FileSourceReference: #84701
Update beta tag: #84725
[next-codemod] fix: Set codemod version to the first introduced version: #84726
[next-upgrade] misc: update comment: #84727
Turbopack: use vector instead of hash map: #84696
Revert "docs: nav_title for long unbroken words (#84233)": #84346
[turbopack] tweak the doc on the inner graph optimization: #84752
[turbopack] Fix a few references to caching configuration as it is no longer canary guarded: #84761
Add 16.0.0-beta.0 to next/third-parties peerDeps: #84741
[eslint-plugin] Remove eslint-v8 testing: #84721
Update Rspack production test manifest: #84729
Update Rspack development test manifest: #84730
fix: release next-rspack ci: #84673
[cna] Preserve existing config option when enabling React Compiler: #84663
Prevent failing types-and-precompiled from corrupting terminal output: #84799
Update test/CNA templates React version to 19.2.0: #84736
Turbopack: use the same serialization method for lookup as for storing: #84765
Turbopack: update petgraph: #84757
[turbopack] Issue 'too many matches' warning for DirAssets also: #84768
Revert "Fix flakey overlay feedback test": #84819
[test]: de-flake client-cache.original.test.ts: #84831
[ci]: set NEXT_TEST_VERSION to release tag for deploy tests: #84840
docs: soft 404's, Suspense and loading.tsx: #83867
[turbopack] Discuss Core Web vitals in our bundle size gap docs: #84837
[turbopack] document missing webpack loader features: #84849
[turbopack] fix typo in docs: #84868
[turbopack] Remove the implementation of TaskInput from AutoSet: #84867
Update turborepo env in workflows: #84879
Turbopack: take task cache log before starting snapshot: #84755
Turbopack: allow gzip compression on trace files: #84685
Turbopack: process task result as part of the task completion: #84638
Add test for eslint-config-next: #84838
Turbopack: lower level drop collectibles: #84895
docs: next/dynamic headings: #84492
Turbopack: expose client static assets correctly: #84695
Turbopack: better errors for strip_prefix_len: #84882
Turbopack: improve missing factory message: #84881
CNA: Update template to use ESLint Flat config: #84917
fix: process.env.TURBOPACK maybe undefined: #84885
Turbopack: fix spacing on EcmascriptModuleAssetType: #84915
Update Rspack development test manifest: #84890
Update Rspack production test manifest: #84891
Fix url-imports test: #84922
Turbopack: fix pageExtensions precedence: #84926
Turbopack: fix client reference order for shared references: #84760
Turbopack: turn panic into bail: #84927
Docs/sync with new features 0: #84861
Turbopack: transpile runtime with swc: #84931
docs: x-nextjs-stale-time header: #84901
docs: Templates on navigation: #84493
Docs/sync with new features 0: #84861
Turbopack: transpile runtime with swc: #84931
docs: x-nextjs-stale-time header: #84901
docs: Templates on navigation: #84493
chore: Attempt to fix ppr-partial-hydration flakiness: #84672
Update Rspack production test manifest: #84939
Turbopack: rename Persistent Caching: #84896
Turbopack: Add ChunkedVec test case: #84756
docs: Add missing codemod docs: #84980
Update prefetching.mdx providing more clarity on the usage of router.prefetch(): #84903
docs: getting started installation and next lint removal: #84781
docs: Split "Get Started: Route Handlers and Middleware" to Route Handlers and Proxy: #84708
docs: Replace Middleware docs to Proxy: #84709
chore: Remove redundant copy of rust reqwest crate: #84982
[turbopack] Allow withRspack to work even if you already have NEXT_RSPACK set: #84987
Turbopack: Track errored tasks as dependency when using untracked(): #84914
Turbopack: shard amount need to grow quadratic to cpu count to keep propability of conflicts constant: #84921
Turbopack: fix race condition when adding dependencies: #84946
Turbopack: make tracing warning not fail build: #85032
[ci]: increase number of runners for test jobs: #85049
add a message about Turbopack tracing: #85044
Turbopack: Implement next/font/local declarations option: #85051
docs: experimentalClientMaxBodySize: #85105
Docs: Add --debug-build-paths next build option: #85097
Docs: Add note on tag limits for cacheTag: #85106
docs: no switcher for TS only examples: #85109
fix: Handle non-directory files in cache folder when performing cleanup: #84930
Turbopack: Suggest using system certs when a TLS error occurs: #85009
[turbopack] Try to fix v8 crashes on github actions: #85114
docs: Update to Zod v4 syntax: #84807
Docs: Add version history for next lint deprecation and update error message: #85100
Turbopack: improve module evaluation name: #84633
[test] Current behavior of dynamic APIs integration with React DevTools: #85111
[Cache Components] fix env labels in perf track test: #85132
Turbopack: Disable LightningCSS MediaRangeSyntax feature: #85086
Don't expliclitly set the --turbopack flag in Create Next App, it is no longer necessary: #85117
[turbopack] Remove the canary icon from the cache components docs: #85149
Bump swc to v45: #85143
[test] Fix test-dev with --projects: #85167
[test] Update snapshots: #85171
docs: mcp: #85010
Docs: Explain Sass tilde import difference: #85041
Turbopack: don't fail on export type in use server: #85054
Turbopack: speedup module merging: #85043
docs: remove experimental_ppr route segment config: #85188
Rename "blocking route" error docs page: #85189
docs: upgrade from 15 to 16: #85176
Docs: Explain Sass tilde import difference: #85041
Turbopack: don't fail on export type in use server: #85054
Turbopack: speedup module merging: #85043
docs: remove experimental_ppr route segment config: #85188
Rename "blocking route" error docs page: #85189
docs: upgrade from 15 to 16: #85176

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16.0.0

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16.0.0

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16.0.0#

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16.0.0

16.0.0