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<p>We've documented some of the new features coming along in <link><page ri:content-title="Changes in 4.0"></page><link-body>the 4.x branch of ActiveMQ</link-body></link>. In particular the things I'm particularly happy about are</p>

<ul><li><link><page ri:content-title="Exclusive Consumer"></page></link></li><li><link><page ri:content-title="Message Groups"></page></link></li></ul>


<p>I really love <link><page ri:content-title="Message Groups"></page></link>, they totally rock! <emoticon ac:name="smile"></emoticon> Its well worth reading the overview of what they are and how they can be useful making a partitioned high performance grid style distributed system with ordering or fast caching etc.</p></div>