v12.3.1

Core Changes

• Update react-server-dom-webpack: #40356
• Fix flight manifest to include all chunks: #40365
• docs: fix typos: #40342
• Fix page url for edge routes in app dir: #40361
• Subresource Integrity for App Directory: #39729
• Stop build warning about experimental: { esmExternals: 'loose' }: #40377
• Add template and error file types: #39808
• Bump styled-jsx for showing displayName: #40411
• fix(#40388): next/dynamic should only add default loading without suspense: #40397
• Add missing trace for full reload event: #40393
• feat(ts): expose AppType: #40391
• Update dev watcher to ignore more accurately: #40412
• Add failing case for location throw: #40445
• Drop legacy RSC handling in client for pages: #40472
• fix: eslint no-script-component-in-head error url: #40422
• chore: Update swc: #40292
• feat(edge): allows configuring Dynamic code execution guard: #39539
• Rename allowDynamic to unstable_allowDynamic: #40496
• Don't execute prefetches for bot user agents: #40435
• Update semver of eslint-plugin-react: #40246
• Clean up startTransition in Link: #40505
• docs(README): next.js logo with dark mode: #40223
• Passing down original sourcemap for flight client loader: #40508
• next/script: make onLoad concurrent rendering resilient: #40191
• chore: Update swc: #40520
• Add missing feature in next-swc: #40550
• Mask Flight Parameters from Middleware: #39939
• Unwrap promise with experimental_use: #40575
• fix(next/router): Prevent query delete in routing when next.config basePath option is truthy: #40566
• fix(image): handle image imports with high aspect ratio: #40563
• fix: loosen webpack compilation with fallbackNodePolyfills: false: #40612
• Adding experimentalAdjustFallback feature to font optimization: #40185
• fix: handle notFound: true in / with next export: #40592
• refactor: split up CONTRIBUTING.md: #40515
• Implement SWC transformer for server and client graphs: #40603
• Fix edge wasm handling during deploy: #40625
• Client directive: #40415
• Remove internal client next api detection: #40646
• Attach module trace for RSC related errors: #40652
• Use createFromFetch instead of createFromReadableStream to fetch Flight: #40656
• Change Flight response content type to application/octet-stream: #40665
• Send web vitals to Vercel analytics in app: #40669
• Refactor fetchServerResponse: #40674
• Port page and layout level API assertions to SWC transform: #40653
• Ensure smooth scroll is disabled for navigation in new and existing router: #40642
• Upgrade to latest React experimental: #40672
• Refine error messages: #40661
• Incldue styled-jsx in swc compiling: #40679
• misc: update caniuse-lite to latest: #40680
• Remove non existed exports and files: #40685
• fix(image): preload should respect crossOrigin: #40676
• Add handling for static generation in app: #40561
• Avoid direct React client API imports in the server graph: #40686
• Drop legacy RSC server and client extension: #40692

Documentation Changes

• docs: fix middleware path: #40340
• Fix mdx docs: #40402
• Update Server Components documentation.: #40452
• docs: move swcMinify: true out of "Experimental features" section: #40394
• Clarify use of loading property: #40488
• docs(errors/large-page-data): how to see data being passed to page: #40491
• docs(basic-features/script): update script version history: #40263
• Added "negative matcher" documentation: #40282
• Fix a typo in docs: #40501

Example Changes

• chore: fix examples: #40395
• chore(examples): update turborepo examples link: #40487
• update(examples): Emotion modules: #40242
• Added comments to middleware-matcher example: #40273
• Remove legacy mobx example: #40304
• Update cms-makeswift example: #40560
• Fixed typo: #40608
• Revert "Fixed typo": #40623
• chore: Migrate with-prefetching example to typescript: #40671
• chore: Refactor active-class-name example: #40670
• docs(examples): fix error connection handling: #40633

Misc Changes

• Temporarily disable unstable app test: #40408
• docs(middleware): fix broken link
• chore: use link: instead of file: in CONTRIBUTING.md: #40510
• add Balázs as codeowner to /errors/ directory
• fix(cli): tune filter for extracting example .tar: #40513
• Add additional tests for prefetch and trailingSlash: #40517
• Wrap parallel routes tests in describe: #40546
• fix(#40025): run next/script beforeInteractive test in both dev & prod: #40541

Credits

Huge thanks to @huozhi, @shuding, @ijjk, @jasham, @Kikobeats, @wyattjoh, @rubytree33, @timneutkens, @balazsorban44, @andrewrjohn, @SukkaW, @hanneslund, @leerob, @Djo1e, @kdy1, @msafi, @tknickman, @feugy, @cramforce, @ryparker, @victorboucher, @steven-tey, @JDansercoer, @janklimo, @hiro0218, @HaNdTriX, @migueloller, @flex-kyunghwa, @saalimzafar, @alxhotel, @janicklas-ralph, @feedthejim, and @chornos13 for helping!