Restoring an IBM MQ MQI client to an earlier version on UNIX and Linux

To revert a client to an earlier version of the product on UNIX and Linux, we must uninstall the later version, and then install the earlier version.

About this task

If you revert an IBM MQ MQI client and client connection to an earlier code level, we must undo the configuration changes manually.

It is unusual to revert earlier IBM MQ MQI client libraries to a workstation.

Procedure

1. End all IBM MQ activity on the workstation. You are now ready to restore the client to the earlier version. Follow the instructions for the appropriate platform that your enterprise uses.
2. To revert the client to the earlier version on AIX :
   1. Uninstall the IBM MQ MQI client code for the later version. For more information, see Uninstalling or modifying IBM MQ on AIX.
   2. Follow the client installation procedure to install the IBM MQ MQI client for the earlier version. For more information, see the client installation procedure for the earlier version that you want to install.

3. To revert the client to the earlier version on Linux:
   1. Uninstall the IBM MQ MQI client code for the later version. For more information, see Uninstalling or modifying IBM MQ on Linux.
   2. Follow the client installation procedure to install the IBM MQ MQI client for the earlier version: For more information, see the client installation procedure for the earlier version that you want to install.

4. If you configured a Client Connection Definition Table (CCDT) for a queue manager using the later version, revert to using a table created by a queue manager for the earlier version. If a client uses CCDT to connect to a queue manager, the CCDT can be at a version greater than, less than, or equal to that of the client. For more information, see MQI client: Client Channel Definition Table (CCDT).

Parent topic: Migrating an IBM MQ MQI client on UNIX and Linux