I want to upgrade from Zen3.2 to Zen 6.5.

Would it be better to remove Zen3.2 and install Zen 6.5 fresh?

Novell Course 3040 states it is designed to Upgrade an existing ZENworks
for Desktops 4 system to ZENworks 6.5 Desktop Management. Being I am at
Zen 3.2, would this be the course I would want to take?

Thanks in advance!