This site is being deprecated.
Please see the official X‑Plane Support page for help.
If the question is "will a computer that can run X-Plane 10 run X-Plane 11" then you should download the free demo on that machine to try it yourself.
If the question is will X-Plane 10 network with X-Plane 11, I believe the answer is no. We actually advise against using different point versions of the same full version (11.05 with 11.20 for example).
This site is no longer being actively maintained.