https://www.ibm.com/support/pages/ibm-mq-7x-80-90-91-92-93-and-94-compatibility-previous-versions-including-usage-ccdt-files-jms-bindings-ssltls
The above link is the IBM Documentation on this topic, with answers to questions like:
"Are MQ 7.0, 7.1, 7.5, 8.0, 9.0, 9.1, 9.2, 9.3 and 9.4 compatible with previous versions?
Can a recent MQ 9.4 client (for example) use a CCDT created with a previous version?
Can an older MQ 9.2 (for example) client use a CCDT created with a newer version?
Can a JMS .bindings file created in 9.2 be used with 9.4 (for example)?
Can a JMS .bindings file created in 9.4 be using with 9.2 (for example)?
Can an older MQ client using an old SSL protocol still work with MQ 9.x?"
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Peter Potkay
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Original Message:
Sent: Thu October 31, 2024 03:22 PM
From: Morag Hughson
Subject: IBM MQ client version 8 compatibility with IBM MQ 9.3
Outwith the comment already made about TLS - yes, you can certainly use a client at V8 with a queue manager at V9.3 - the protocol used by channels (clients and qmgr-qmgr) expects the two ends to be at different versions and negotiates the differences accordingly.
Cheers,
Morag
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Morag Hughson
MQ Technical Education Specialist
MQGem Software Limited
Website: https://www.mqgem.com
Original Message:
Sent: Tue October 22, 2024 12:57 PM
From: Kumari Priyanka
Subject: IBM MQ client version 8 compatibility with IBM MQ 9.3
Hello,
is it okay to upgrade queue manager to version 9.3 and continue to be working with IBM MQ client version 8?
thanks
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Kumari Priyanka
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