XenWord Pro 2017 is designed to bridge between XenForo 1 OR 2. There is a switch. I combined the code so that people could upgrade to XenForo 2 when everything is set.
The XenWord Pro 2017 is new and in alpha only. There are people running it on their servers but this makes me very uncomfortable. It is on this site, but I had to remove certain widgets and there were conflicts with the UI.X addon.