If you follow the minutes of the MQTT TC at OASIS, after the release of MQTT v5 there is now talk of formalising the MQTT-SN spec in a similar fashion, that sho

If you follow the minutes of the MQTT TC at OASIS, after the release of MQTT v5 there is now talk of formalising the MQTT-SN spec in a similar fashion, that should lead (in time) to more robust implementations.