Module override processing is NOT supported in CTS 5.2.
Clients migrating to CTS 5.2 with module overrides in place will receive the following messages in the CICS log at startup time:
DP1045: CA-DADS/PLUS MODULE OVERRIDES UNSUPPORTED FOR THIS RELEASE OF CICS
DP1006: MODULE IN25OPTS IN LIBRARY INTSYM85.ALLGA.CACICS68 OVERRIDE UNSUPPORTED
If you use the CA DADS Plus online menu's to perform modules overrides, you will receive this message:
DP783: MODULE OVERRIDES UNSUPPORTED FOR THIS RELEASE OF CICS