They're not independent. We generally say that you should upgrade your server first, and then ZCO. We want older ZCOs to work with newer servers. A lot of times, you can get away with upgrading ZCO first (having a later ZCO version than the server), but we don't recommend it. In certain versions (5.0.7 for one), some things would break if you updated ZCO first. But lately, you can probably get away with it.
But if you want the party line -- upgrade the server first. |