I'd like to check my app's performance on devices running iOS10 beta without using the Xcode 8 Beta. The main reasons for this are to a) retain the ability to archive & upload the app to the App Store, and b) share the app's codebase with others using Xcode 7.x. As far as I understand (I could be wrong), you can't use an Xcode beta to upload apps to the App Store.
I've tried sharing the apps with the iOS10 beta devices via TestFlight. Though this does work it doesn't quite solve the problem of being able to do proper testing and debugging on the beta device. Thanks for reading.