mcollina/mosca — pull request #82 by skynetim (2013-12-26 18:11:34+00:00)
Title: Increased MQTT client identifier to support 65536-byte IDs as recommended in next spec.

SkyNet IM uses standard 36 byte UUIDs for client IDs

The following other MQTT clients seem to support 65536-byte IDs:

http://mqtt-client.fusesource.org/
OASIS
HiveMQ