Is now available. We're currently using 1.5.x. Briefly, XenForo is the software that I used to make this forum. You can compare and contrast our forum software with what Sax-on-the-Web uses: vBulletin. As mentioned elsewhere, I'm a pro computer guy. I've worked out a bunch of rules over the time I've been teching, and near the top is *never* install the .0 version of any software in a production environment. Wait for 2.0.1 or whatever. Let somebody else be the guinea pig. Also, we currently have a bunch of add-ons XenForo 1.5.x which may not work in XenForo 2. So, it's going to be a LOT of testing before we switch. However, if you just want to play around with the new version of XenForo, I encourage you to check out this link.