The highest value in General -> Deployment Info -> Deployment Target pulldown in Xcode 11.5 on my system is 11.3.
However, default tvOS simulator is running 11.4. Also, creating a new tvOS project shows target 11.4, but greyed out.
Should I file a bug, or am I misunderstanding the situaiton (I've been away from Xcode for a while). Thanks.