What are the minimum CCS version requirements to be able to upgrade to CCS 12.8.
CCS 12.6.x
CCS 12.7.0
CCS 12.6.0 is the minimum CCS version that is allowed to be able to upgrade to CCS 12.8. Any CCS version older than 12.6.0 will first need to be upgraded to 12.6.0, then it can be upgraded to CCS 12.8.