I am having some compatibility issues with my own application. This app was made about 2 years ago, on mac os 10.15.7 Catalina, Xcode 11.7, and that time my iPhone SE (1st gen) had iOS 13.something and i was able to run (simulate) the app on my device.
Now I have Xcode 12.4 (cannot install newer version, because it requires a mac os 11 or newer, and I have an old macbook pro 13 retina late 2013) Once I tried to install mac os 11, but worked very slow so I put the 10.15.7 back on it. Same iPhone SE (1st gen) but now running iOS 15.7.9 (and also an iPad 9.gen with iOS 15.4) and I cannot run my app anymore, it says: “unable to install”.
I tried to download 15.7.9 and 15.4 device support files from here:
https://github.com/iGhibli/iOS-DeviceSupport/tree/master/DeviceSupport
but no luck.
The app works fine on the built in simulators, so the problem is the old Xcode version, I guess.
Is there any way I can work this out? Sending the app to my device and be able to test for a few days, like 2 years ago? Or if I publish the app to the app store, will I be able to download it to my devices from the app store?
