PSA: Apple's New USB-C Accessories Require macOS Sequoia, Don't Work Properly With macOS 15.2 Beta

With the launch of new M4 Macs this week, Apple introduced USB-C versions of the Magic Mouse, Magic Trackpad, and Magic Keyboard to continue on with phasing out the Lightning port. Apple users who plan to buy these new accessories should be aware that there are some software limitations currently.
The new USB-C accessories require macOS Sequoia 15.1 to work properly, and as noted on the MacRumors forums, earlier versions of macOS do not work. There are reports from users running macOS Sonoma and