I'm currently running ZEN 4.0.1 IR4a in a mixed NW 5.1, 6.0 and 6.5 tree
with all master replicas on a 6.5 server. At this time I'm only using ZEN
for policy management, but I may expand my use next summer. Are there any
issues with upgrading to ZEN 6.5 in the environment, or should I upgrade all
of the servers to 6.x before upgrading ZEN?