We plan to upgrade our 6.x setup to the latest 7.x this month, and there is just a short question with no answer (afaik) in the release notes: is anything necessary and mandatory on client side when switching from 6.x to 7.x ? (connector upgrade, zimbra desktop upgrade, etc.), or will it just continue to work fine ?

I presume it is the case, but asking and make sure _before_ the upgrade will not hurt :-)

Thanks & regards!