VTAM version and release level indicator

The terminal control modules in CICS® are assembled against z/OS®, 1.4 Communication Server. You can use any release of Communication Server VTAM® from z/OS, 1.4 , or a later, compatible release. For details of the minimum level of products that you can use with the current release, see the CICS Transaction Server for z/OS Release Guide.

CICS can communicate with different levels of VTAM. It can find out which level you are using, and hence what level of function is available. This means that you can upgrade CICS and SecureWay Communication Server VTAM at different times. CICS finds out whether extra function is available when a new version of VTAM is installed, and produces a message if the facilities are not being exploited fully.

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