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I agree Andy Andy Stanford-Clark Innovation Leader - IBM SPEED team Distinguished Engineer, Master Inventor, IBM Quantum Ambassador, Member IBM Academy of Technology, Fellow BCS Visiting Professor at Newcastle, Southampton and UEA. Tel: +44 ...

Thanks Si ð Andy Andy Stanford-Clark Innovation Leader - IBM SPEED team Distinguished Engineer, Master Inventor, IBM Quantum Ambassador, Member IBM Academy of Technology, Fellow BCS Visiting Professor at Newcastle, Southampton and UEA. ...

On 5... if I've understood what you're saying, then I would say that the original intent of QoS -1 was for devices that don't have a receive capability - only a transmit - hence the "lower than qos 0" - it's literally fire and forget, and even worse, have no idea if it got there or not. So we can't ...

Well spotted, Si ð Isn't this just kicking the can down the road, Davide? Perhaps we should bite the bullet now and take the extra byte for the protocol version? Our future selves will one day thank us ð I really like the "drive-by publish" of QoS -1, but given that it ...

Alex, Further to this (actually answering my comment about MUSTs), the conformance statement says: 7.1.2 MQTT Client An MQTT Client conforms to this specification only if it satisfies all the statements below: 1. The format of all MQTT Control Packets that the Client sends matches the format described ...