How the HELL are we supposed to know whether we're running the latest version of the theme or not?

There is no information on version or update date in my downloads screen.
The only x-reference I have is the file name of the download??Q?
I’m supposed to go back to the previous downloaded version and crossreference two gobbledegook file names in order to work out if there’s been a theme update or not. Yeah?
What sort of unproffesional garbage is this?