User exit program compatibility

Compatibility of user exit programs with different versions of the CICS® Transaction Gateway API.

CICS request exit and request monitoring exit programs do not have to be recompiled if you upgrade CICS Transaction Gateway, if the following conditions are met:

The exit programs run with the version of Java™ required by CICS Transaction Gateway.
There is no specific requirement to do so for the version of the product from which you are upgrading. For more information see Upgrading.