CAE Server maintenance

When applying maintenance, always update the CAE Server first to ensure it is not older than the Query Monitor Subsystem or ISPF Client and avoid compatibility problems that might arise when LPARs are at different maintenance levels.

A newer CAE Server can retrieve data from Query Monitor Subsystems and CAE Agents that are at older maintenance levels, but the Query Monitor Subsystems and the CAE Agents must be at the same maintenance level as each other.

A newer CAE Server can process requests from an ISPF Client that is at an older maintenance level.