SuperDuper:

The latest version of SuperDuper! is faster, better, compatible with macOS Sierra – in fact, it’s compatible with macOS 10.8 and later, and improves many parts of the user experience. Of course, it still includes great features like Backup on Connect, Eject after Copy, Sparse Bundle support, lets you store a bootable backup alongside Time Machine backups, copy Time Machine backups to other drives, and run scheduled copies on demand.

This is just the beginning of a huge number of such updates but, for me, it’s particularly important. SuperDuper, along with Carbon Copy Cloner, are two of my must-have utilities for managing my Mac. Having it updated to be compatible with Sierra is a big deal.