I am on WSO version 20.1.10 on prem. We just got word that MS Teams Version 2.09 for iOS is breaking incoming calling. Is there a way I can prevent people from downloading this version? It only seems I have the ability to push an update not prevent one from installing.
No, you can't functionally stop Apple from updating anything. You could go all crazy and and attempt to stop ALL apple communications on devices, but that would have other consequences. There are no rollbacks for Apps and if they are set for autoupdate, it will do so. Sad but true. Hopefully MS will address whatever the problem is quickly.