Considerations for static classes

If the installation class descriptor table (ICHRRCDE) contains the GENERIC=ALLOWED or GENERIC=DISALLOWED keyword, you must administer it from the from the system running z/OS® V1R8 or higher. Once the installation class descriptor table is assembled on the system running z/OS V1R8 or higher, the object code for ICHRRCDE can be linked and used on the lower-level systems.
You must administer the profiles in the class that was defined using the GENERIC=DISALLOWED keyword from the system running z/OS V1R8 or higher. If you administer the profiles from a lower-level system, you might be able to activate generic profile processing on that lower-level system because GENERIC=DISALLOWED is not recognized on that system. Then you can add generic profiles from either system.