The CICS® TS for z/OS®, Version 3.1 DFHIRP module is compatible with earlier releases, and is designed to work with all releases of CICS.
The following steps are a guide to migrating to MRO, with the latest DFHIRP and DFHCSVC modules installed in the MVS™ link pack area (LPA). For information about how to perform some of these steps, such as installing the SVC or IRP modules in the LPA, see the CICS Transaction Server for z/OS Installation Guide. Note that these steps assume that RACF®® is your external security manager (ESM).
Do not use the dynamic LPA function to replace DFHIRP for
migration between releases, as this can cause incompatibility between
control blocks, resulting in abend situations.