www/posts/2011/04/version-0-10-released.md
This release brings the new MQTT v3.1 features to the broker - client authentication and topic access control. See mosquitto.conf(5) or the included example password and ACL files.
password_file option and accompanying
authentication requirements in the broker.mosquitto_will_set() and mosquitto_publish() now return
MOSQ_ERR_PAYLOAD_SIZE if the payload is too large (>268,435,455 bytes).clientid_prefixes variable.clientid config variable for controlling bridge client
ids.Please see the download page.
Thanks to Adam Rudd, Joshua Lock, Sang Kyeong Nam and Yuvraaj Kelkar.