Core Changes

• [dev-tools] Fix width transition logic: #78635
• [ts-next-plugin] fix: warn only if no type: #78628
• [ts-next-plugin] fix: warn only if no type for separate export: #78629
• chore: Drop @swc/counter: #78674
• Turbopack: use small thread local collector that flushes to global collector: #78343
• Upgrade React from 197d6a04-20250424 to 5dc00d6b-20250428: #78640
• Fix bad decoding for x-matched-path header: #78677
• Fix pages API rewrite case: #78644
• chore: update rspack to 1.3.8: #78485

Misc Changes

• refactor(turbo-tasks): Remove task id from RawVc::LocalOutput: #78561
• Turbopack: avoid compation on initial write: #78342
• Turbopack: Extract EsRegex into turbo-esregex crate: #78639
• nit(turbo-tasks): Reorder the fields in RawVc::LocalOutput, add more documentation: #78562
• Update Turbopack development test manifest: #78660
• Turbopack: write a LOG file for the database: #78650
• Turbopack: Fix sizes=any with icon.svg metadata file: #78663
• Turbopack: commit compaction only when there are updates: #78651
• docs: improve "use server" inline example: #78653
• Update Nissuer to alert for vulnerability reports: #78417
• Enable prettier for turbopack: #78559

Credits

Huge thanks to @bgw, @sokra, @wbinnssmith, @raunofreiberg, @devjiwonchoi, @timneutkens, @leerob, @kdy1, @ijjk, @jackwilson323, @SyMind, and @lukesandberg for helping!

Misc Changes

• refactor(turbo-tasks): Use an execution id instead of the parent task id to prevent local Vc escapes: #78487

Credits

Huge thanks to @bgw for helping!

Core Changes

• fix: make webpack handle "use cache" in node_modules : #78606
• Use React's prerender function for "use cache" with Dynamic IO: #78382
• Use node: prefixed in ESM emit of standalone server.js: #78624
• feat: add ravendb library to server-external-packages.json: #78319
• docs: fix typo in ppr.ts: #78590
• Pre-compile busboy dependency: #78634
• Pages API handler interface follow-ups: #78638
• Repeat fix in #78387 for routes without params: #78568

Misc Changes

• Turbopack: parallel search_index in trace server: #78357
• Update Turbopack development test manifest: #78614
• Update Turbopack production test manifest: #78613
• Turbopack: fix unused import on mac: #78341
• Update MDX documentation to use next-mdx-remote-client: #78347
• perf(turbopack): Remove ImportBinding fragments: #78470
• Turbopack: fix search_index merging in trace server: #78625
• docs: Add missing deprecation notice for legacyBehavior in Link component: #78405
• Turbopack: don't resolve traced references in dev: #78623
• Turbopack: Support passing binary data to Webpack loaders: #75056
• docs: link the Cloudflare adapter for Workers: #78610
• perf(turbo-tasks): Filter out self arguments: #78554
• refactor(turbo-tasks): Tighten up id factory overflow checks, tweak API to make construction easier: #78486

Credits

Huge thanks to @sokra, @gaearon, @kdy1, @mischnic, @mrbadri, @lubieowoce, @unstubbable, @luwes, @lucacasonato, @M4xymm, @jirihofman, @vicb, @ijjk, @bgw, and @acdlite for helping!

Core Changes

• [ts-next-plugin] clean up unused proxy: #78539
• [dynamicIO] Disallow only dynamic metadata: #78576

Misc Changes

• Turbopack: handle webpack loader event backpressure: #78462

Credits

Huge thanks to @timneutkens, @devjiwonchoi, and @gnoff for helping!

Core Changes

• fix: bodySizeLimit error responses + limit for non-multipart actions: #77746
• [dynamicIO] Do not skip dynamic validation when metadata is dynamic: #78574
• [dynamicIO] log dynamic validation errors consistently in dev: #78575

Misc Changes

• docs: add better-auth auth provider: #74075

Credits

Huge thanks to @lubieowoce, @gnoff, and @miki-tebe for helping!

Core Changes

• Upgrade React from 914319ae-20250423 to 197d6a04-20250424: #78516
• [dev-overlay] Move error.name to label: #78198
• [ts-next-plugin] update log for utils: #78538
• [ppr] Route Cardinality Updates: #78476
• Turbopack: support ignore comments for NFT fs access tracing: #78460
• Externalize manifest loading in pages-api: #78358
• Update font data: #78525
• refactor: skip the prospective render when there's a more specific route to be rendered: #78555

Misc Changes

• docs: update redirected link: #78527
• Docs IA 2.0: Create public folder API reference: #78531
• Update Turbopack development test manifest: #78535
• Docs IA 2.0: Move Sass and CSS-in-JS pages to guides: #78536
• Turbopack: prevent hanging due to content hashing: #78545
• Docs IA 2.0: Move caching page to deep dive: #78537
• Batch ipc info messages to improve performance.: #78522
• docs: remove Vercel mentions and improve deployment page: #78557
• Clarify documentation on to_resolved. s/strongly/statically/: #78560
• Updating to AWS Amplify Hosting: #78564

Credits

Huge thanks to @leerob, @delbaoliveira, @eps1lon, @devjiwonchoi, @mischnic, @lukesandberg, @wyattjoh, @ijjk, and @mauerbac for helping!

Misc Changes

• Docs IA 2.0: Delete config page in app docs: #78521
• fix(turbo-tasks): Store persistence of wrapped task on RawVc::LocalOutput: #78488

Credits

Huge thanks to @delbaoliveira and @bgw for helping!

Core Changes

• [next-server] ensure prepare is done before preloading entry: #78454

Example Changes

• examples: fix readmes: #78483

Misc Changes

• feat(turbopack): Implement side-effect optimization: #78047
• Docs IA 2.0: Move testing guides: #78418
• Update Turbopack production test manifest: #78491
• Turbopack: add app-dir alias for next/* subpackages: #78447
• Docs IA 2.0: Move pages from Config section into guides: #78496
• Docs IA 2.0: Move src folder page to API reference: #78499
• Docs: fix reference to experimental.turbo: #78507
• docs: added a few legacy version tags: #78506
• Turbopack: Add react refresh runtime stubs to workers: #78433
• Docs IA 2.0: Move optimizing pages to guides: #78500

Credits

Huge thanks to @kdy1, @leerob, @delbaoliveira, @mischnic, @huozhi, and @wbinnssmith for helping!

Core Changes

• Turbopack: don’t warn about webpack being configured when experimental.turbo is set: #77998
• Upgrade React from bc6184dd-20250417 to 914319ae-20250423: #78468
• Update turbopack to syn2: #78385

Misc Changes

• build: Update mdxjs-rs to v1: #78469
• fix(turbopack): Fix sourcemap path on windows: #78453
• fix(turbo-tasks): Add a few more transient-from-persistent task assertions: #78301
• fix(CI): Reduce Rspack test retries from 2 to 0 to reduce timeouts: #78390
• test: attempt to de-flake graceful shutdown test: #78464
• Fix potential race condition in createRouterAct: #78473

Credits

Huge thanks to @wbinnssmith, @kdy1, @bgw, @lubieowoce, @lukesandberg, and @acdlite for helping!

Core Changes

• [errors] fix edge server initial error is not sent via hmr: #78415
• misc: use correct capitals for React terms: #78445
• Skip empty prefetch request for dynamic routes: #78436

Misc Changes

• Update Turbopack production test manifest: #78441
• Turbopack: Use single write to loader ipc socket: #78423
• Update Turbopack development test manifest: #78442
• test: flake debugging - avoid logs being eaten by jest: #78449
• test: ignore streaming metadata in toBeEmpty assertions: #78456

Credits

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