Not sure I completely understand it, but Jenkins is apparently auto-tagging things (maybe every commit that passes tests?). I think their actual releases have "stable" in the tag and release name, so "current" is "stable/jitsi-meet_4384".

4384 matches the latest versions I'm seeing for Ubuntu and Debian at https://jitsi.org/downloads/ under "Jitsi Desktop stable build line". For some reason other OSes seem to be much further behind.