After some initial confusion of WHY my OSX SERVER software suddenly says my "model is not supported" (it IS a Mac Mini SERVER Edition after all!!!!). It seems there is a working OSX Server for Mavericks BUT they want $20 for it. Great. I bought the expensive Mac Mini Server model that comes with server and I don't even get an update for it with the otherwise FREE Mavericks update? What a crock. They didn't warn me that my Server was going to stop working and charge me a hidden $20 fee. So much for the "free" upgrade to Mavericks.... Why bother paying the $20 either? OSX is scheduled to be updated EVERY YEAR from now on. That means ANOTHER $20 for OSX Server. It seems they found a way to screw SOME OSX users over and over and over anyway. Apple SUCKS.