Core Changes

• Upgrade React from 4123f6b7-20250826 to 33a1095d-20250827: #83119
• fix global not found canont static shell with sync io: #83111
• fix: relative paths in dev in validator.ts: #83073
• fix: use ESM import instead of triple-slash reference for routes.d.ts: #82867
• [Breaking] remove deprecated devIndicators options: #83124
• chore: update rspack to 1.5.0: #82863
• fix: validation return types of pages API routes: #83069

Misc Changes

• Fix flakey multiple-lockfiles tests: #83103
• docs: Expanded type checks to Pages Router and tsconfigPath: #83096
• Update Rspack development test manifest: #83086
• Update Rspack production test manifest: #83085

Credits

Huge thanks to @mischnic, @huozhi, @icyJoseph, @bgub, @shuakami, @devjiwonchoi, @SyMind, and @vercel-release-bot for helping!