Example Changes

• fix: error handling and loading states in with-apollo-and-redux example: #91457

Misc Changes

• Upgrade React from 172742b4-20260716 to 81e442ea-20260721: #96016
• Fix Turbopack middleware matcher with i18n single locale: #96014
• Improve performance of validating MPA form submissions: #96013
• Enforce serverActions.bodySizeLimit for Server Actions in Edge runtime: #96012
• Set correct origin for internal redirects in custom server: #96011
• Ensure exotic rewrite param values are properly encoded: #96010
• fix(fetch-cache): key fetch(Request, init) by the effective request: #96009
• fix(incremental-cache): byte-exact fetch cache key for binary bodies: #96008
• Validate server reference IDs during manifest lookup: #96007
• fix(next/image): improve performance of detectContentType() : #96006
• Preserve basePath in redirect destinations: #95608
• [ci] Skip passed-tests cache steps for jobs that never run tests: #96001
• docs: add upgrade section to installation and expand AI agents guide: #95861
• docs: fix unstable_cache syntax error: #96002
• Insights: use a single Learn more link in console errors: #95967
• Refine development validation signal handling: #95998
• Include examples of static export tools & GitHub Pages template: #95929
• docs: note the :has() scaling limit in the Interactive apps guide: #95925
• Prevent unhandled rejections when a "use cache" cache handler errors: #95985
• [test] Add coverage for throwing custom "use cache" cache handler: #95984
• docs: clarify layout.js nesting behavior in route groups: #95720
• Fix instant validation blocking navigations: #95939
• [ci] Share a single browser instance across all test suites in a single job: #95589
• [turbopack] Rename turbopackTreeShaking to turbopackModuleFragments: #95978
• cna: use LayoutProps helper in TS layout templates: #95675

Credits

Huge thanks to @vercel-release-bot, @eps1lon, @ZaforAbdullah, @gaojude, @aurorascharff, @icyJoseph, @timneutkens, @WildChargerTV, @ankurdotio, @bgw, and @sampoder for helping!