Servers & game versions

[Antar]

Old player coming back.

1) Excited about new versions, I updated my game all the way to 4.13.2, only to see on Hyperlobby that most servers run older versions. Why is that, is something wrong with the latest version, or did just the servers not caught up yet?

2) Is there a way to downgrade the game without a complete reinstall?

3) Can someone recommend server(s) that is not listed on hyperlobby, and has active players and good level of realism?

Thank you very much