Apple updated their requirements for App Store submissions so new apps must be built with Xcode 12. As a result we’ve updated our build servers to the latest Xcode 12.4 release.
This isn’t on by default yet so if you need it this week you’ll need to use the build hint: ios.xcode_version=12.4
After the weekend this will be the default so if you don’t need to submit a build to Apple this week you can just ignore this.
If this will trigger a regression in your code (possible if you have a native dependency) you can temporarily workaround it by using the build hint: ios.xcode_version=11.3