v16.1.1-canary.31

Core Changes

• Upgrade React from 4a3d993e-20260114 to bef88f7c-20260116: #88649
• fix: make RedirectType constant properties literal types: #88653
• Turbopack: add support for matching loaders on resource queries: #88644
• fix: capture promisified setImmediate separately: #88346

Misc Changes

• Turbopack: use bugs.nextjs.org for Turbopack panic error reports: #88356
• Turbopack: docs: condition.query will ship in 16.2.0, not 16.1.1: #88663

Credits

Huge thanks to @naaa760, @sokra, @wbinnssmith, @jgeschwendt, and @bgw for helping!

v16.1.1-canary.30

Core Changes

• Fix incorrect 'Ready in' time for next start: #88589
• feat: server action logging: #88277
• Log browser error and warnings in terminal: #88352

Misc Changes

• Turbopack: avoid removing cells for erroring tasks: #88305
• [ci] Use native concurrency feature in build-and-test: #87287
• doc: add details of mcp client integration: #88543
• Turbopack: unflake unit test: #88620
• Turbopack: snapshot the ModuleGraph to avoid (eventual) inconsistent graphs: #88340
• Turbopack: Consistency for compute_async_module_info: #88409
• Turbopack: follow tracing spans through aggregation update queue: #88410
• Turbopack: avoid chunk_item_id task and use selective cell access instead: #88411
• Turbopack: MappedReadRef should be Send and Sync: #88558
• Turbopack: selective read for module_chunk_groups in ChunkGroupInfo: #88559
• Turbopack: use selective reads for merged modules: #88560
• Turbopack: add caching to chunking: #88561

Credits

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

v16.1.1-canary.29

Core Changes

• fetch(next/image): reduce maximumResponseBody from 300MB to 50MB: #88588
• [CC] Fix dev validation error from server action bound args: #88600

Misc Changes

• feat: add TaskStorage derive macro and schema infrastructure: #88338
• docs: fix Pages Router fonts documentation showing App Router examples: #88326
• [ci] Don't retry/notify for failed deploy tests with custom tarball URLs: #88576
• fix(turbopack): Collect declare global {} in VarDeclWithTsDeclareCollector: #88568
• Update labeler.json: #88591
• Fix optional parent_task_id compile failure w/tokio_tracing enabled: #88598
• Turbopack: support disabling tsconfig lookup: #88529
• Turbopack: run tasks with priority based on distance to leaf: #87662

Credits

Huge thanks to @lukesandberg, @timneutkens, @unstubbable, @kdy1, @mischnic, @mmastrac, @sokra, @styfle, and @lubieowoce for helping!

v16.1.2

Note

This release is backporting bug fixes. It does not include all pending features/changes on canary.

Core Changes

• Turbopack: Update to swc_core v50.2.3 (#87841) (#88296)
  • Fixes a crash when processing mdx files with multibyte characters. (#87713)
• Turbopack: mimalloc upgrade and enabling it on musl (#88503) (#87815) (#88426)
  • Fixes a significant performance issue on musl-based Linux distributions (e.g. Alpine in Docker) related to musl's allocator.
  • Other platforms have always used mimalloc, but we previously did not use mimalloc on musl because of compilation issues that have since been resolved.

Credits

Huge thanks to @mischnic for helping!

v16.1.1-canary.28

Core Changes

• Turbopack: more dead code: #88505
• fix(build): prevent route handler manifests from inheriting unrelated client components: #88419
• Upgrade React from 65eec428-20251218 to 3e1abcc8-20260113: #88530
• Better typesafety for interopDefault: #88486
• keep next-env.d.s unchanged between dev and build: #88428
• Remove sibling caches from CacheNode tree: #87991
• Upgrade React from 3e1abcc8-20260113 to 4a3d993e-20260114: #88547
• Finish deleting Mutable from router implementation: #88046

Misc Changes

• Remove lerna bootstrap from the clean script in package.json: #88527
• docs: add useSearchParams and useParams documentation for Pages Router: #88429
• Turbopack: Clean up VcRead::Repr associated type: #88456
• [cna] Avoid error with out-of-box Netlify config: #88546
• [turbopack] Move some of the logic for issue filtering into the rust layer: #88511
• Update Rspack production test manifest: #88469
• Update Rspack development test manifest: #88470

Credits

Huge thanks to @mischnic, @timneutkens, @unstubbable, @huozhi, @acdlite, @bgw, @karlhorky, @lukesandberg, and @vercel-release-bot for helping!

v16.1.1-canary.26

Misc Changes

• Turbopack: fix bad performance edge case in production chunking: #88508

Credits

Huge thanks to @sokra for helping!

v16.1.1-canary.25

Misc Changes

• [test] Always run all tests without aborting on failure: #88435
• Turbopack: remove sourcemapping comments: #88217
• Turbopack: use mimalloc on Linux musl: #88426
• Turbopack: add support for selective reads of keyed cell values: #88303
• Turbopack: Reduce usage of parse_quote in turbo-tasks-macros: #88454
• Turbopack: don't cell in async map: #88473
• Turbopack: replace is_reference_used with unused_references set: #88304
• Turbopack: add lint rule to not cell in async map: #88474
• Turbopack: Remove dead generic_type_macro code: #88455
• Turbopack: remove unused code: #88497
• Turbopack: improve cell order lint rule: #88498
• Turbopack: parallelize making dependent tasks dirty: #86755

Credits

Huge thanks to @unstubbable, @mischnic, @sokra, and @bgw for helping!

v16.1.1-canary.24

Core Changes

• Revert "prevent browser cache from using stale RSC responses from pre…: #88457

Credits

Huge thanks to @ztanner for helping!

v16.1.1-canary.23

Core Changes

• Don't import typescript at runtime: #88321
• fix: use RDC for server action requests: #88129
• Warn when overriding Cache-Control header on /_next/ routes: #88353
• [prebuilt-skew-protection] feat: adding in automatic deploymentId: #88012
• Revert "[prebuilt-skew-protection] feat: adding in automatic deploymentId": #88449
• Turbopack: Update reqwest, remove experimental system TLS feature: #88290

Misc Changes

• Update AGENTS.md with PR template and test generation requirements: #88417
• Add .cursor/worktrees.json configuration: #88415
• docs: add guidance for code block highlight line numbers to AGENTS.md: #88430
• [turbopack] Compute transitive side effects and use them to trim imports: #86675
• fix(turbo-tasks-backend): use correct TaskDataCategory for is_immutable check: #88331
• perf(turbo-tasks-backend): use DefaultStorage for AggregationNumber to save memory: #88336
• [Turbopack] Move DirList to its own module: #88256
• docs: add rebuild guidance and ICE troubleshooting to AGENTS.md: #88337
• Type-check run-tests.js and remove unused related flag: #88433
• [test] Remove obsolete reference to NEXT_TEST_SKIP_RETRY_MANIFEST: #88434
• Revert "[Turbopack] Move DirList to its own module": #88441
• [scripts] Avoid conflicting type for pack-next --compress: #88439
• Update Rspack production test manifest: #88403
• Update Rspack development test manifest: #88404

Credits

Huge thanks to @mischnic, @timneutkens, @lukesandberg, @ztanner, @andrewimm, @unstubbable, @eps1lon, @brookemosby, @vercel-release-bot, and @bgw for helping!

v16.1.1-canary.22

Core Changes

• Track search string as part of "refresh state": #87203
• Pass RouteTree into navigation function: #87256
• Read from segment cache unknown routes: #87293
• Pass loading boundary as part of RSC data: #87825
• Revert "refactor: consolidate PPR into cacheComponents architecture (#88243)": #88421
• fix: support TypeScript noUncheckedSideEffectImports for CSS imports: #88199

Misc Changes

• docs: fix CSP example to only include unsafe-eval in development: #88407
• docs: add PR description guidance to AGENTS.md: #88408
• ci: Fix retry comments in workflow files: #88412
• [test] Deflake test/integration/invalid-custom-routes/test/index.test.ts: #88416
• [test] Remove rogue debug log: #88423

Credits

Huge thanks to @acdlite, @timneutkens, @unstubbable, @eps1lon, @wyattjoh, and @Rani367 for helping!