The security fix was rolled back when users updated to macOS 10.13.1.
And, for once, some of what it can do looks genuinely useful.
Google Reportedly Set to Launch Tool Revealing Battery Degradation Over Time for Phones and Tablets, Says Android Authority.
Introduced in iOS 17.1 and watchOS 10.1, NameDrop is a novel feature that facilitates the sharing of contact information between nearby iPhones and Apple Watches by holding them together.
