The latest version of XView is 3.0. It corrects a problem with the landing lights that was introduced by Laminar Research in Version 10.5 of X-Plane.
If you are using version of X-Plane prior to 10.5, then stay with win.xpl version 2.
The Mac version is identical to the one produced in 2015. It currently needs XCode to be installed for it to run. XCode is free. I will try and find a solution that does not need XCode.