// The trick is to link the DeviceSupport folder from the beta to the stable version.
// sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)
// Support iOS 13.2 devices (Xcode 11.2) with Xcode 11.1:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/13.2 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
// Xcode 10.3 to Xcode 11
sudo ln -s /Applications/Xcode-11.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/13.0 /Applications/Xcode-10.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
// Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions