2.2. New Features

Red Hat JBoss A-MQ now supports the MQTT (MQ Telemetry Transport) transport. There are three variations of the MQTT transport: plain MQTT (mqtt: URL), MQTT+NIO (mqtt+nio: URL), and MQTT+NIO+SSL (mqtt+nio+ssl: URL).

Red Hat JBoss A-MQ now supports Stomp version 1.2.

Red Hat JBoss A-MQ now supports using MS SQL JDBC driver 4.0 with the JDBC persistence adapter.

In order to be compliant with the JMS specification, String property values are no longer converted automatically into numeric values in ActiveMQ 5.8.

For example, if a message has an age property equal to the string value, 21, the selector, age > 18, will not match the property value in ActiveMQ version 5.8. If you would prefer the property to match the selector in this case (by converting the string to a numeric value), you can use the following selector instead: convert_string_expressions:age > 18.

It is now possible to specify whether a broker should advertise its endpoint address using a hostname, numeric IP address, or a fully-qualified domain name (FQDN). You can specify this policy by setting the publishedAddressPolicy attribute on the broker's transportConnector element.