Core Changes
- fix(route-handlers): make sure preflight has CORS headers: #63264
- fix(turbopack): Remove error overlay when issue is resolved: #62983
- Disable cache in testmode: #63265
- Turbopack: app externals test case improvements: #62871
- build: Update turbopack: #63273
Misc Changes
- Update Turbopack test manifest: #63274
Credits
Huge thanks to @samcx, @kdy1, @dvoytenko, and @sokra for helping!