At the moment I am using 4.5.19, and would like to try out the latest Beta version. As I haven't created any custom items I don't need to make any backup of the content folders, but do I need to unregister and uninstall the current version - or can a new version just be installed over an existing one?
I ask only because some companies require uninstalling, some recommend it, and others state that it doesn't make any difference.