Core Changes

• fix(nodejs-middleware): await for body cloning to be properly finalized: #85418
• Add build-time validation to detect ambiguous app routes: #85834
• Don't use inspector frontend URLs from other processes: #86082
• Upgrade React from 52684925-20251110 to 93fc5740-20251113: #86103
• [next-upgrade] Force install of dev dependencies: #86119
• Fix telemetry event race condition in webpack worker for @vercel/og detection: #86145

Misc Changes

• Add postpone handling in app-page handler: #86101
• Turbopack: remove global_information struct: #86089
• Turbopack: add task_id_details feature: #84970
• Turbopack: Refactor output assets to allow to lazy compute output assets: #85753
• Un-skip tests in prefetch-runtime.test.ts: #86097
• Turbopack: add flags to AvailabilityInfo: #85771
• Turbopack: apply side effects false removal on all module types: #86133
• [build] Remove layers experiment flag from next-runtime webpack config: #86126

Credits

Huge thanks to @lucasadrianof, @ijjk, @wyattjoh, @eps1lon, @mischnic, @sokra, @acdlite, @unstubbable, and @gaojude for helping!