Core Changes

• Allow users to use process.env.NEXT_SSG_FETCH_METRICS to control fetch metrics during SSG: #68378
• refactor: replace indexOf === 0 with startsWith: #68116

Misc Changes

• docs: Improve PPR config/rendering sections: #68210

Credits

Huge thanks to @mknichel, @leerob, and @Juneezee for helping!

Core Changes

• Remove quotation marks from object key : #68337
• Move static indicator into dev overlay: #68369
• Ensure we match comment minify behavior between terser and swc: #68372
• update turbopack: #68399
• chore: fix references for the new turbopack crates: #68128
• refactor: merge turbopack crates into next.js: #68127

Misc Changes

• box Scheduled task state to save memory (vercel/turbo#8807)
• Drop excessive cells after task reexecution (vercel/turbo#8170)
• reduce memory and consolidate shared vs transient cells (vercel/turbo#8263)
• avoid implementing Eq on Completion (vercel/turbo#8818)
• feat: Improve tree shaking (vercel/turbo#8781)
• GC auto increase memory limit on inefficient GC (vercel/turbo#8687)
• Reduce macro usage in turbo-tasks-testing (vercel/turbo#8832)
• fix: Use hygiene_with_config instead of hygiene (vercel/turbo#8848)
• Support monorepo package self-references (vercel/turbo#8820)
• allow to resolve symlinks on DirectoryEntry (vercel/turbo#8851)
• fix symlinks and dotfiles while reading glob (vercel/turbo#8865)
• Support module_resolution: "nodenext" (vercel/turbo#8748)
• Add/move tests for Vc generics (vercel/turbo#8843)
• Fix ReadRef<T>::cell when T != T::Read::Repr (vercel/turbo#8845)
• fix: Fix tree shaking even more (vercel/turbo#8864)
• improve test glob to exclude output folder (vercel/turbo#8875)
• only add import references when they are used (vercel/turbo#8874)
• Replace MDX ModuleType with MDX SourceTransform (vercel/turbo#8766)
• Make JS Lints have lower severity (vercel/turbo#8837)
• Convert MDX errors into issues (vercel/turbo#8879)
• smarter logical combination that keeps truthy/falsy/nullish property (vercel/turbo#8873)
• Skip unreachable code when early return can be statically analysed (vercel/turbo#8890)
• Add 'turbopack/' from commit 'fb033c4917bb1bb98b238f1b4c7a928b66a90887'

Credits

Huge thanks to @mud-ali, @ijjk, @sokra, and @ForsakenHarmony for helping!

Core Changes

• [form] typedRoutes support for action prop: #68323
• fix: allow empty string value for opengraph: #68262
• update turbopack: #68354
• fix renaming of page files, add handling of symlinked pages: #68195

Example Changes

• update react remove properties to support app route: #68324

Misc Changes

• docs: small follow up for custom server: #68334
• Turbopack: Add docs for unsupported :import and :export: #68353
• test: fix invalid URL in app-types test: #68360
• Docs: Next.js 15 RC updates: #67839
• chore: remove fast-xml-parser from a test: #68310
• docs: fix typo on file extensions: #68043
• HOTFIX: pages doc next-config-js was moved from 03 to 04: #68370
• Ensure we always run types-and-precompiled CI check: #68371
• Turbopack: reduce tasks needed for emitting: #68212
• refactor(cna): refactors and small perf wins: #68225
• Update turbopack dev manifest for flakey loading test: #68373

Credits

Huge thanks to @niketchandivade, @leerob, @timneutkens, @lubieowoce, @devjiwonchoi, @delbaoliveira, @sokra, @Marukome0743, @luciancah, and @ijjk for helping!

Core Changes

• Update metadata ready tracking (reland): #68342

Credits

Huge thanks to @gnoff for helping!

Core Changes

• next/form: #68102
• Remove legacy next/link prefetch={true} warning: #68326
• Drop react-dev-overlay from production bundle: #68197
• Update React from 6230622a1a-20240610 to 3208e73e-20240730: #68330

Example Changes

• docs: Custom Server for App Router: #68167

Misc Changes

• Ensure sync-react updates pnpm overrides: #68329
• docs: fix code block for server action: #68268

Credits

Huge thanks to @lubieowoce, @leerob, @timneutkens, @eps1lon, and @icyJoseph for helping!

Core Changes

• Fix hmr assetPrefix escaping and reuse logic from other files: #67983
• Add deployment id header for rsc payload if present: #67255
• Turbopack: Implement HMR for module-scoped environment variable changes: #68209
• Revert "Update React from 6230622a1a-20240610 to 76002254-20240724 (#68149)": #68300
• Log cached fetches during HMR refreshes if enabled in logging config: #68287
• Upgrade Turbopack: #68327

Misc Changes

• Add app-action deploy test to manifest: #68308
• Add test for serverExternalPackages inside node_modules: #68156

Credits

Huge thanks to @kjugi, @ijjk, @huozhi, @wbinnssmith, @mischnic, @eps1lon, @unstubbable, and @timneutkens for helping!

Core Changes

• Move request logging code out of NextNodeServer: #68286

Misc Changes

• Update turbopack manifest for flakey folder rename: #68296
• chore(github): initialize triage_with_ai.yml workflow again: #68292

Credits

Huge thanks to @unstubbable, @ijjk, and @samcx for helping!

Core Changes

• Ensure we only handle app nav failure for actual error: #68285
• Drop @babel/plugin-transform-classes by default: #68290

Example Changes

• Examples: Updated the example of catch all routes to utilize the App Router: #68270

Misc Changes

• chore(github): initial setup for triage_with_ai.yml workflow: #68289
• docs: add Stack Auth to list of auth libraries: #68284

Credits

Huge thanks to @ijjk, @niketchandivade, @samcx, and @N2D4 for helping!

Core Changes

• Update React from 6230622a1a-20240610 to 76002254-20240724: #68149
• fix: grammar in jsdoc: #68253
• Add telemetry for React Compiler usage: #68079

Misc Changes

• Cleanup Yarn/npm specific fields in root package.json: #68186
• Turbopack build: Fix CSS test: #68266
• Restore workspaces in package.json: #68267
• Update devlow to 0.3.2: #68275

Credits

Huge thanks to @eps1lon, @domin-mnd, @timneutkens, and @wbinnssmith for helping!

Misc Changes

• chore: bump turbo to 2.0.9: #68046
• chore: bump pnpm to 9.6.0: #68044

Credits

Huge thanks to @samcx for helping!