I too have an install that used to be 6.0 Beta 3, but after installing a number of .rpms I believe I upgraded to 6.0 as that is what is says in /server-manager.
Now the question becomes how 'safe' is it to just do the upgrade on a running server? I've installed some contribs like spamassasin and awstats, among a couple other small ones. I've also installed some PHP software like Gallery in an ibay...
if I just do the upgrade, will all the installed software I have still work? I mean, how smart is the upgrade feature?