I know we spoke over the phone, but I just wanted to clarify for anyone interested:
The CSA with CentOS 6.9, is currently only out for the new hardware from what I understand. I verified with our backline support that they will be releasing new documentation in about a week or two with a download link. Keep watching the CSA landing page for when it finally launches. Cloud Services Appliance
1. The OS and the CSA version are 2 different things, the CSA version (via patches) can be updated via the admin panel but the OS on which the CSA run (CENTOS) should not (as per this doc How to update the CSA version 4.3 and above (Cloud Service Appliance) )
Apparently, there is a new version of the CSA with a newer OS version on it, this refers to a new install of the CSA either via hardware provided by IVANTI (there is not a new CSA VM yet with the new os) if I understand correctly IF you get a new CSA appliance that will have the new OS and it will not work with Older versions of LDMS.