The latest version of Apple's mobile operating system was released on December 11th and now I am able to experience the updated features of Apple Mail first-hand. Here's what I'm observing so far, after having used it for a couple of days: Apple Intelligence-driven previews have replaced preheaders But only on new-ish Macs (M1 chip or better) and new-ish iPhones (iPhone 15 or n…

