With iOS 16, Apple is making some changes to prevent attackers from sideloading malicious apps on the device – which includes de addition of a new Developer Mode. However, these changes caused a bug in the first beta of iOS 16 that also requires this mode for TestFlight apps.
As noted by some users on Twitter and also confirmed by 9to5Mac, users can no longer simply install and run TestFlight apps on iOS 16, at least not as it used to be. Of course, you can still install TestFlight apps on your iPhone and iPad, but now there’s a catch.
