dstiles - 9:36 pm on Feb 18, 2012 (gmt 0)
No, it's not. 3.6 is used by (out-of-date-but-still-running) linux (it's the one I was running up until a few months ago). If they are still running 3.0 then they have not updated linux/ubuntu itself for well over a year so are a danger anyway.
I have a couple of dozen entries for 3.0 in my "suspicious" log this month and most are windows with the occasional Mac. There are a lot more in my "server-farm" log (all rejected on other grounds) including some Jaunty as well as windows.