Tried out new version on a couple of drives that I was building today.
I didn't time it, but it appears to be somewhat quicker when rebuilding drives.
No APFS yet. The app does respond with "Directory cannot be rebuilt because it uses an unsupported version of APFS"
That appears to imply that some version of APFS might be supported. Prior to today, it simply said Unsupported OS, so minor change,
Anyway, it recognizes APFS for what it is, but still does not rebuild or recover APFS volumes. But -- I think that is what has been on their site as part of the next version 6.
The "big" news with 5.3 is that it will successfully work for rebuilding on Apple Silicon - M1, M2, etc, Still won't scan APFS drives, but you can do external drives that are Mac OS Extended volumes (HFS+)
Maybe today's release (FWIW) is an indication that the version 6 will be released soon, too! (It was only 5 years between 5.2 and today's 5.3), but it's something...