I know about the 0.4.0 release in 2014 (almost two years ago). But nothing has happened since then, except the filing of a couple of issues that have not been responded to.
The only real issue I have run into is that the -a flag is not documented on the man page. If it looked like the project were being maintained, I would just file a bug or submit a patch. But looking at the condition of the issue trackers, I don’t think that would do any good. Andy