I am running 2.9. I was going to upgrade to 22.214.171.124 but apparently support for that is going away. I looked up the upgrade process for going from 2.9 to 2.10.x but it appears that you can't upgrade - it's a whole new install. Is that true? What is the actual upgrade process (I'm running on a VMWare VM) and how do I preserve and restore my databases of devices, credentials, etc., etc.?