I am always running unrealBook on the latest beta of iOS on my iPad. If there is a show stopping problem I will post on this website.
9-12-22 The latest version runs on IOS16.
Version 4.39 runs on iOS16 beta 4 AFAIK. I am using it daily.
The notes below are with the unrealBook BETA
Beta 4 tested Airturn BT-105/Digit – everything works the same. Tested AirDirect mode – everything works. For most iPads except M1 iPads, the only difference in iOS16 is a bold font on the Lock Screen (and possibly more bugs)- really!!!! 8-4-22
Beta4 – unrealBook running fine again. If you are running beta 3, install beta 4! 7-29-22
Beta3 crashes unrealBook. This is an iOS bug. I have reported it. It may magically fix itself later.
Do not install iOS16 beta yet. I have been running fine since the first beta but I received a report that a newly installed version crashes. I am investigating this. 7-13-22