IBM has the following technical bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21472819
Problem(Abstract)
An IMS Bridge (OTMA) or CICS Bridge application that worked with WebSphere MQ for z/OS V6.0.0 now fails with V7.0.0 or V7.0.1.
Symptom
Symptoms may include
MQRC 2148 MQRC_IIH_ERROR
MQRC 2142 MQRC_HEADER_ERROR
MQRC 2112 MQRC_SOURCE_INTEGER_ENC_ERROR
DFHMQ0745 E CKBP nnnnn Unable to put message to reply queue. MQRC=2112.
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This is going to cause a lot of problems for a lot of people.
Regards,
Roger Lacroix
Capitalware Inc.