![]() This applies to C based and non-Java/JMS applications. ![]() ![]() Unless documented otherwise, CCDTs created on higher level maintenance releases (for example 8.0.0.3) are compatible with lower level (for this example: 8.0.0.0) MQ clients running the same MQ version and release. Therefore the CCDT created on 9.1 can be used on 8.0 and 9.0. There was no change in the MQCD length between 8.0, 9.0 and 9.1. Therefore the CCDT created on 7.5 can be used on 7.1. However, the newer MQ clients (9.1) when using the CCDT created with MQ 6.0 will NOT be able to fully exploit newer features, even when connecting to an 9.1 queue manager because the CCDT will not show the new attributes for those new features. For example, if you are using MQ 6.0, 7.0, 7.1, 7.5, 8.0, 9.0 and 9.1 clients that use a CCDT file, then the CCDT file must be maintained by the MQ queue manager at version 6.0.
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