I have recently switched to the development build and there was a 100+ mb update. But, when I try to find a server such as TDM, Hold the objective, Cooperative, etc. The default game modes. Every server that shows up has a red X on the far left hand side. If I try to join it said bad version.
Before I switched to the development build. There were never any updates that come through on my end on steam.
I do not know what version mine is cause I do not know how to find those details.