If not, should I be upgrading between release candidates? Is that possible?It’s also possible to upgrade between RCs, just as you would with upgrading from an RC to the GA release. In all honesty though, unless you’re wishing to help out with the testing of RC3 (which I wouldn’t recommend on a live site) then I’d advise you wait for the main Evo 1.0 release which is just around the corner.