Mixed-version Cloud Pod Architecture environments are supported beginning with Horizon 7 version 7.4.

New features do not work in a mixed-version environment. For example, a new feature that is visible in Horizon Console for a VMware Horizon 2006 Connection Server instance is not visible in Horizon Console for a Horizon 7 version 7.5 Connection Server instance. VMware recommends that you upgrade all pods to the same VMware Horizon version.