You can also open your app in the Playgrounds app and set the target version to iOS 17. My app is also iOS 17 only, since I have used all the cool new Swift technologies, which are welcomed for the challenge, right? Also, when you submit as an Xcode project, they will run it on a simulator and Xcode 15(.2?), which makes me think they will most likely run it on iOS 17, since that is what comes with Xcode 15.

Hey, sorry for asking this again - if we need to make sure it runs on iOS 17, using Xcode 15 is the best way to go, right? They'll probably have the iOS 17 simulator there. I've set the target to iOS 17 already to skip checks, since half the apps functionality would be disabled on older versions.