Subj : src/sbbs3/scfglib1.c To : Git commit to main/sbbs/master From : Rob Swindell Date : Mon Jan 09 2023 03:52 pm https://gitlab.synchro.net/main/sbbs/-/commit/a9a4f2280007c74f62e79bc8 Modified Files: src/sbbs3/scfglib1.c Log Message: Change the default MQTT protocol version from 5.0 to 3.1.1 I read that 3.1.1 is much more widely supported, but perhaps that was old info. .