This site is being deprecated.
Please see the official X‑Plane Support page for help.
Just like in the past, there is no "upgrade" from V10 to V11. You can buy the special Combo Package that we are offering now - a Digital License and Serial Number to X-Plane 10 that will also unlock X-Plane 11 (for free) or you can buy V11 outright when it is released. In either case, the price will be the same, $60.00. You can order the combo package currently at x-plane.com.
This site is no longer being actively maintained.