Hello, For xft Terminus, I simply use "Terminus:bold:size=9", that seems to work best, you should check "fc-list | grep Terminus" to see if Terminus is in fontconfig fontpath (or whatever its called) or else add it, like so "xset +fp ~/.fonts/terminus" or where ever you have yours, with .xinitrc or something. there used to be a way to mention xlfd fonts for xft, (i forgot how though, surely the Arch wikis cover this somewhere?) eitherway read up on fc-pattern fc-list fc-cache fc-match etc... and xset :) or like Frign said, don't upgrade. its not necessary
--Carlos