Hey folks. Sorry for the relative silence here. We've been working during the summer on a Catalina update, and unfortunately we're just not quite ready for a general update. But we're close!
Catalina introduces some significant changes to the way a startup drive works, and while we've solved the various issues involved in making the backup process as transparent as possible, it's taken a lot of slow, careful work to get the testing done.
As you might expect, the "new way" Catalina splits your drive into two parts makes things more complicated. The details are hidden from you by Apple for the most part, but SuperDuper has to know, and handle, all the various tricky cases that arise from that split (not to mention the technical details of tying the volumes together, which we figured out early in the summer).
There are stories to tell--our initial intention was to take a different approach than the one we ended up taking--but those will have to wait for when I've got a bit more time.
That said, the GM version was just released on October 3rd, the final version was released today, we've got a beta almost ready to go, and I'll be posting it to the blog as soon as it's passed our internal testing.
That beta works great for most users, but will have some limitations around images: we're probably not going to work with APFS image destinations in the beta when selected as files, if the source is a volume group.
There are also some caveats regarding encrypted destinations: basically, we can't form a "volume group" from a destination that's already encrypted, so you'll have to unencrypt encrypted destinations, copy to them, then boot from them and turn on FileVault.
More soon; thanks for your patience, and thanks for using SuperDuper!
