For a more detailed summary of recent performance improvements around compilation, please see this comment.

Core Changes

• Auto fill title/images/description from openGraph for twitter if missing: #51453
• Route Module Updates: #51433
• fix(typo): rename var name in comment: #51531
• feat: support for numeric separators in revalidate config: #51438
• Support response aborting: #51594
• Next Build Turbo POC (2): #51546
• bugfix: route interception with dynamic paths: #51526
• add edge rendering for app dir for Turbopack: #51631
• Pages Error Route Module Rendering: #51374
• Revert "add edge rendering for app dir for Turbopack": #51659
• Update cache handling in draft mode: #51663
• Add esm entry for next/server and alias @vercel/og: #51651
• Hot reload when conflicted pages detected and when conflicts are resolved: #51516
• Fix standalone rendering for unmatched _next routes: #51611
• add edge rendering for app dir for Turbopack: #51666
• Revert "Update swc_core to v0.78.15": #51716
• type check tests (and convert next-test-utils.js to ts) : #51071
• Add default modularizeImports that breaks up @mui/icons-material, @mui/material, date-fns, lodash, lodash-es, ramda, react-bootstrap: #50900
• Move Pages render out of server: #51678
• Add url to patched fetch response: #51665
• Correct Flight client's condition for SSR and createServerReference: #51723
• Update manual basePath with trailingSlash: #51726
• feat: add body parser limit for server actions: #51104
• fix: handle 404 errors in HotReload client: #51637
• Add critical next config value to github info: #51715
• Fix not-found handling in turbopack: #51735
• Allow matching against user-agent in rewrites that match headers: #48271
• revalidate should be more than a boolean: #51627
• Rename serverActionsSizeLimit as serverActionsBodySizeLimit and add docs: #51755
• Fix HMR for missing dependencies in next-app-loader: #51778
• fix: interception rewrites should support catch-all segments: #51787
• Remove execSync: #51785
• Remove unncessary source matching from loader: #51775
• Fix NODE_OPTIONS='--inspect' not running expected: #51467
• Fix tree-shaking for metadata image functions on the Edge runtime: #51762
• Add WATCHPACK_WATCHER_LIMIT=20: #51826
• Simplify Flight manifest plugin: #51589
• performance: don't compile on hover on dev: #51830
• Refactor next-font-manifest-plugin: #51835
• feat: Introduce eslint rule for async client components: #51547
• fix: webpack target should match node engines: #51852
• Enable compression for Webpack's cache during dev: #51851
• perf: only require nextjs-require-cache-hot-reloader related API in dev mode: #51834
• fix: build stats should properly report root page size in appDir: #51854
• Optimize client entry creation: #51849
• Fix white screen when navigating to pages in certain cases: #51866
• Fix missing request body in DELETE and OPTIONS Route Handlers: #51874
• make stdout blocking on macos: #51883
• Fix windows fill metadata dynamic path: #51885
• Support relative url for openGraph.url and itunes.appArgument: #51877
• feat(next-dev): add a new experimental flag: #51895
• next/node-polyfill-web-streams: fix web stream polyfill for Node v16: #51901
• node-polyfill-web-streams: require from stream/web instead of stream: #51906
• Add retries and clear message to font fetching: #51890
• performance: enable minification for the server bundles: #51831
• Simplify module context invalidation: #51905
• Reduce the client bundle size of App Router: #51806
• fix turbopack mdx import map: #51881
• error recovery during turbopack hydration: #51882
• Ensure edge runtime Pages API/App Route handlers AbortSignal aborts on client disconnect: #51727
• adds payload to server-external-packages.json: #51933
• fix(next): improve error for using outside of document: #45056
• Support react profiling option for app dir client components: #51947
• Add cpu-features to server external packages: #51946
• Add unstable_getImgProps export from next/image: #51205
• Fix eslint async client component: #51952
• fix modularizeImports with @mui/material: #51953
• Fix entrypoints.get and entrypoints.stream from turbopack: #50733
• Optimize next-app-loader file resolution: #51924
• fix(typedRoutes): added missing anchor props to LinkRestProps: #51977
• Update turbopack and swc_core to v0.78.24: #51943
• export config into functions config manifest: #51700
• Add shared input filesystem: #51879
• Make sure DevEx can approve docs PRs / Remove Spaces: #51996
• Filter invalid image descriptor from metadata images: #51992
• Fix NextRequest constructor parameters: #52001
• Update edge-runtime to latest: #51944
• Increase time and size windows for cached on-demand entries: #52019
• Avoid disposing middleware and instrumentation hook during development: #52022
• Update displayed error message for rsc case: #52004
• Refactor some loaders to be synchronous: #51997
• Optimize inlined Flight data array format: #52028
• Revert "Optimize inlined Flight data array format": #52039
• Refactor ContentSources to RouteTree: #51660
• Fix font missing during server HMR: #52033
• Enable Pages Route Module Rendering for Edge: #51894
• Ensure non-implicit unstable_cache tags are propagated: #52058
• Delegate static analyzation task to the router worker: #52104
• Add default modularizeImports for antd / ant-design/icons / ahooks: #52031
• Avoid unnecessary resolveExternal calls: #52053
• Remove EnvironmentIntention: #51965
• fix: env hot reload for RSC pages: #51930

Documentation Changes

• added good to know in /app based pages and layout in nested layouts: #51558
• docs: Add Panda CSS to CSS-in-JS docs.: #51484
• Add docs for src directory to include tailwindcss: #51619
• Add page router documentation: #51626
• docs: Add 'DO NOT EDIT' comment: #51600
• Fix validator action breaking when PRs originate from forks: #51668
• docs: fix generated app icons file extensions: #51562
• Fix typo in 01-typescript.mdx: #51669
• fix(docs): added missing dot: #51718
• Update 01-images.mdx: #51532
• Add app to tailwind.config.js in fonts documentation.: #51671
• Update docs for Google Analytics 4: #51405
• Fix Typo in Optimizing - Open Telemetry docs: #51729
• docs: improve minor grammar mistake: #51758
• fix: typo into 03-css-in-js.mdx page: #51761
• docs: Add updated next/image video.: #51790
• docs(deploy): fix GitHub Actions cache key: #51789
• Fix usage of article "an" before a consonant sound: #51803
• Update 10-router-handlers.mdx: #51850
• [docs] fix angle bracket in mdx: #51920
• [docs] Replace the term "hole" with "slot": #51919
• [docs] fix curly brackets in mdx: #51916
• Add separate links in shared documentation: #51733
• Fix run-on sentence: #51956
• docs: make custom image loader a client component.: #51858
• docs: clarify reactStrictMode: true by default: #51931
• Remove unnecessary mention of scroll false: #51964
• Update next lint section: #51898
• Docs: Fix broken link: #51991
• chore(docs): explain NODE_ENV environment variable: #52003
• fix(create-next-app): consolidate messages to "Would you like to use": #52011
• Docs: Fix missing typings for typescript example: #52076
• docs: Fix broken link: #52092

Example Changes

• examples: improve with-supabase example: #51442
• examples: add missing supabase-js dependency for with-supabase example: #51703
• docs: update with-next-translate example using appdir: #51720
• fix some issues on examples/app-dir-i18n-routing: #51576
• chore(examples): relax pinned versions to fix npm install fail due to peer deps issue: #51636
• Avoiding try-catch block on examples/app-dir-i18n-routing: #51786
• [examples] Update styling for with-supabase example: #51751

Misc Changes

• chore: make next/src/build files indexable on github: #51647
• fix lockfile: #51650
• Remove the 'notify' modifier on .vercel.approvers: #51655
• Move the Next.js team back to github codeowners: #51657
• Revert "[Docs] Fix validator action breaking when PRs originate from …: #51674
• Update swc_core to v0.78.15: #51269
• Update link validator: use checks, fail on PR from forked repo: #51706
• Update page.tsx tw className: #49040
• Update needs for build and deploy: #51731
• Ensure we run cargo-integration on next change: #51736
• Update swc_core to v0.78.24: #51857
• Revert "Update swc_core to v0.78.24": #51940
• Update codeowners: #51935
• lint fix
• Ensure metadata test is not affected by other tests: #51973
• Remove test skip: #51988
• Loosen metatdata test matcher: #52007
• chore(script): improve markdown changelog output in sync-react.js: #52052
• chore(script): fix typo in sync-react.js pull request url: #52057
• fix app-hmr-changes.test.ts by updating next-tweet: #52046
• link validator: log broken links for PRs from forks: #51963
• Renable flaky tests disabled before: #51680

Credits

Huge thanks to @huozhi, @wyattjoh, @dijonmusters, @danger-ahead, @bre30kra69cs, @leerob, @Yash-Singh1, @jridgewell, @alexkirsz, @ztanner, @sokra, @krmeda, @tyler-lutz, @ijjk, @delbaoliveira, @bigyanse, @kdy1, @2-NOW, @ForsakenHarmony, @Mingyu-Song, @morganfeeney, @timneutkens, @aralroca, @nickmccurdy, @adamjmcgrath, @shuding, @devjiwonchoi, @angel1254mc, @cxa, @ibash, @mohanraj-r, @kevinmitch14, @iaurg, @steebchen, @Cow258, @charlesbdudley, @feedthejim, @tyhopp, @Drblessing, @styfle, @kwonoj, @MaxLeiter, @milovangudelj, @SukkaW, @jacobsfletch, @JoshuaKGoldberg, @zignis, @ChristianIvicevic, @mrxbox98, @oliviertassinari, @balazsorban44, @fsansalvadore, @DuCanhGH, @tvthatsme, @gnoff, and @SonMooSans for helping!