If you are already using WebSphere MQ Publish/Subscribe, you can migrate your applications to use the publish/subscribe functions provided by WebSphere Message Broker.
Before you start this migration, check that you have the required level of WebSphere MQ for your WebSphere MQ Publish/Subscribe system. WebSphere Message Broker Version 6.1 requires at leastWebSphere MQ Version 6.0.
For more information, refer to the following topics: