This site is being deprecated.
Please see the official X‑Plane Support page for help.
I'm not with Laminar Research, just a fellow simmer in the UK, but there are two places where you can find out which version of X-Plane 11 you are using:-
1. On the lower right hand side of the opening screen
2. In Settings/General tab, click on 'About X-Plane' and a dialogue box opens with the details that you require.
Please see below.
This site is no longer being actively maintained.