Can the CICS runtimes run in the same region for the current Gen release and a prior release?
Release : 8.6
Component : CA Gen Host Encyclopedia
In theory having the current release runtimes concatenated ahead of older release runtimes in the same CICS region DFHRPL should work. Verify the currently running CICS version supports the older and current Gen release, and vice versa. Unsupported Gen releases were not tested or certified with later CICS releases. Other 3rd Party integration may be affected such as COBOL and LE versions. See the CA Gen 3rd party Technical Requirements on the Broadcom Support web site for currently supported releases with Gen.