11.1 is lastest release and my install has all those specific sims. Devs shouldn't be using 11.2/any beta tools if they intend to distribute via the store.
I believe what you should be doing is using iPhone XS Max for iPhone screenshots, tho...
Here is the list of simulators I get in XCode 11.1:
- iPad AIr (3rd generation)
- iPad Pro (9.7-inch)
- iPad Pro (11-inch)
- iPad Pro (12.9-inch) (3rd generation)
- iPhone 8
- iPhone 8 Plus
- iPhone 11 Equivalent to Xr
- iPhone 11 Pro Equivalent to Xs
- iPhone 11 Pro Max Equivalent to XMax
If you need more, there are, but only for iOS 12.2, so no dark mode.