Here we will discuss the various upgrade processes available to you.
Before you choose to upgrade, a word of warning. Jomres Core is free, and you would normally upgrade through the Upgrades
feature so this is a very easy process, however be aware that it's common for plugins to also need to be upgraded at the same time (you'd do this afterwards through the Jomres Plugin Manager
If you have a valid download and support license then this will not pose any problems for you, however if your license has expired and you've upgraded Jomres you will not be able to upgrade any plugins, potentially rendering your installation of Jomres unusable. If this is the case, you have two choices :
In short, if you don't intend to renew your license, DO NOT UPGRADE Jomres if your license has expired.