the latest should be the beta versions. there is apparently a new release (2023.2.1 beta) but Richard hasn’t confirmed it’s good to download yet (*** Please do not install 2023.2.1 *** - #2), so i would suggest sticking to 2023.2.0 beta for now until further notice.
and as for the difference, he outlined the two types of releases here when addressing another user’s confusion: