The Apache ActiveMQ developers released Apache ActiveMQ 5.8.0. This release resolves 160 issues. New features include support for AMQP (Advanced Message Queuing Protocol), JDK 7 support and management via REST with jolokia. Full details and a download link can be found in the release page http://activemq.apache.org/activemq-580-release.html.
A client library for Delphi and Free Pascal is available from Habarisoft.