This site is being deprecated.
Please see the official X‑Plane Support page for help.
X-Plane 10 is a completely different version, so there is no way to "upgrade" a v9 install to v10. You will need to purchase and install a new copy of X-Plane 10. Once you purchase it, any updates to v10 will be included. For example, the current version is 10.50. When we release 10.51, you will get that update for free.
This site is no longer being actively maintained.