Version 2.0.5 of Mosquitto has been released. This is a bugfix release.


  • Fix auth_method not being provided to the extended auth plugin event. Closes #1975.
  • Fix large packets not being completely published to slow clients. Closes #1977.
  • Fix bridge connection not relinquishing POLLOUT after messages are sent. Closes #1979.
  • Fix apparmor incorrectly denying access to /var/lib/mosquitto/ Closes #1978.
  • Fix potential intermittent initial bridge connections when using poll().
  • Fix bind_interface option. Closes #1999.
  • Fix invalid behaviour in dynsec plugin if a group or client is deleted before a role that was attached to the group or client is deleted. Closes #1998.
  • Improve logging in dynsec addGroupRole command. Closes #2005.
  • Improve logging in dynsec addGroupClient command. Closes #2008.

Client library

  • Improve documentation around the _v5() and non-v5 functions, e.g. mosquitto_publish() and `mosquitto_publish_v5().


  • install Makefile target should depend on all, not mosquitto, to ensure that man pages are always built. Closes #1989.
  • Fixes for lots of minor build warnings highlighted by Visual Studio.


  • Disallow control characters in mosquitto_passwd usernames.
  • Fix incorrect description in mosquitto_ctrl man page. Closes #1995.
  • Fix mosquitto_ctrl dynsec getGroup not showing roles. Closes #1997.