I have updated an iPhone and two iPad Pros to 16.3. Now, although I can manually do an iCloud backup (via a convoluted method) and apps appear to be still syncing via iCloud Drive the relevant switches are now permanently set to Off in Settings>Apple ID>iCloud.
Attempts to activate them on any of my 16.3 devices results in a “An unknown error occurred. Please try again later.” My devices on iOS 15 are still working fine.
This article At IPhonetricks suggests it is a deliberate change by Apple and I am worried they are right. During the beta cycle my devices asked me daily to logon on, suggesting that some facilities would not work until I had. Once I had then I was being pushed towards 2FA which I always declined.
Attempts to activate them on any of my 16.3 devices results in a “An unknown error occurred. Please try again later.” My devices on iOS 15 are still working fine.
This article At IPhonetricks suggests it is a deliberate change by Apple and I am worried they are right. During the beta cycle my devices asked me daily to logon on, suggesting that some facilities would not work until I had. Once I had then I was being pushed towards 2FA which I always declined.