Core Changes

• fix(static-paths): add depth tracking to parallel route param resolution: #85319
• Fix types of @next/mdx: #82238
• Ensure getServerInsertedHTML skips rendering correctly: #85394
• Fix duplicate .next/types include on Windows: #85400
• Exclude next-js condition from middleware, proxy, and instrumentation: #85321
• remove unstable_forceStale prefetch option & restore prefetch={true} functionality: #85411
• Upgrade React from 2bcbf254-20251020 to 6160773f-20251023: #85277
• fix(next/image): swap dependencies: #85419
• Handle Origin: null headers: #85402
• Generalize Segment Cache fallback implementation: #84652
• fix: ensure req.query is writable: #81573
• fix: Proxy not picked up on Windows: #85443
• [test] Ensure we can toggle the DevTools menu while status indicators are active: #85456
• Fix crash when suspending in Components using useActionQueue: #85459

Misc Changes

• docs: create-next-app react-compiler and new prompts: #85213
• docs: cache components - introduction: #85196
• docs: use cache feedback: #85169
• docs: stabilize apis in docs: #85219
• docs: revalidateTag immediate expiration in Route Handlers: #85223
• Docs/use cache feedback 2: #85222
• docs: added use cache: remote docs: #85145
• docs: proxy runtime defaults to nodejs: #85204
• chore: cache components feedback: #85241
• docs: add a note that cache components is opt-in near the top: #85245
• Docs/v16 feedback: #85259
• Update command to install babel-plugin-react-compiler as a devDependency: #85235
• docs: typegen next-env.d.ts feedback: #85273
• docs: link to MCP guide from upgrade: #85308
• docs: regexp removed from middleware config: #85343
• docs: simplify MCP guide to focus on next-devtools-mcp: #85353
• docs: fix proxy matcher overflow: #85337
• docs: point out diff in serialization types for arguments and return values: #85338
• [test] Update snapshots: #85407
• docs: Fix typo in SEO section of loading.mdx: #85301
• Fix typo in Fast Refresh documentation: #85352
• Fix grammatical errors in updating data documentation: #85067
• [test] Skip devlow benchmarks on PRs: #85408
• [test] Unflake typed-env suite: #85410
• Update rust toolchain to 2025-10-27: #85409
• [test] Speed up prefetching suite: #85417
• docs: remove inaccuracies from use cache: private: #85425
• [test] Exclude Next.js internal stack frames from cache-component-error CLI output assertions: #85421
• [test] Exclude likely Next.js internal Components from component stacks in Redbox assertions: #85420
• Turbopack: correctly trace files with npm: #85323

Credits

Huge thanks to @icyJoseph, @wyattjoh, @devjiwonchoi, @arnabsen, @remcohaszing, @denesbeck, @gaojude, @mhart, @eps1lon, @jesuistuan, @codr, @InfiniteCodeMonkeys, @gnoff, @ztanner, @wbinnssmith, @styfle, @acdlite, @ale-grosselle, and @mischnic for helping!