This is release was done basically to deliver a functionality required by JBoss 5. (SecurityMetadataStore as a pluggable interface). Because of this new functionality, this release will require a change on a config file (messaging-service.xml).
This is the task list for this release:
Release Notes - JBoss Messaging - Version 1.4.1.beta1
** Bug * [JBMESSAGING-1216] - getJMSDestination() is returning an incorrect object type after a message has been delivered. * [JBMESSAGING-1221] - Memory Leak in MessagingXAResource
** Feature Request * [JBMESSAGING-1223] - Make SecurityStore Configurable