When planning an upgrade of the OS, it is helpful to determine if 2E and CM/Implementer versions are compatible. 

CA 2E Solution

To determine the release level and fix level for CA 2E, run the following commands:

DSPDTAARA Y2SY/YRLSNBRRFA
DSPDTAARA Y2SY/YFIXNBRRFA

To determine the release level for CM/Implementer, run the following commands

 
DSPDTAARA PTCIM/ISVERSION  
Note: A customer may be using Y2SYCM versus PTCIM

Reference the CA 2E compatibility matrix to review OS compatibility: