I haven’t had much time for it, to be honest.
I’ve just released Beta 6 will all changes since January. Edge is better supported (at more or less the same level as Chrome/Chromium). I’ve added (very rudimentary) print ability. And there were a few fixes. Also, dependencies (ExifTool, etc) have been updated. But that’s pretty much it.
On the “roadmap” I have a couple of “big” features that might not be very interesting to others, but which are to me: “remote editing” (store photos in one device, edit from another) and Google Photos upload/sync. I’m a bit stuck on these, work gets in the way.