I got Trainz Collection last week from Auran's website and the TRS 2006 part of the package is version 2.6, build 3335. I figured it was already patched & by the way it runs on my computer, with Vista, I'd say the program is fine the way it is. It runs a lot better than my old version of TRS 2006 ever did. However... I'm still not impressed with the CMP. I have been getting "server full try again later" message for 3 days in a row, and I also cannot un-archive my old archives for some strange reason...