Backup of iphone on older OS. Does it work for a restore or is it a waste of space?
When I make a backup of my iPhone (iOS 15.4.1) on my (company) MacBook (OS 10.15.7 Catralina) I get a message telling me to update the OS. However, my employer's IT does not allow the upgrade (yet).
Does that mean the backup I make of my phone is useless?
There is no way to be sure I have a working backup.
MacBook Pro 13″, macOS 10.14
