This is a bugfix release: * Set retained message status for QoS 2 messages (bug #726535). * Only abort with an error when opening listening sockets if no address family is available, rather than aborting when any address family is not available. * Don't clean queued messages when a non clean session client reconnects. * Make mosquitto.py compatible with Python <2.6. * Fix mosquitto.h header includes for Windows. Please see the [download page]. Thanks to Joe B, David Monro,  Yuvraaj Kelkar and Colin Jones. [download page]: /download