MQTT Essentials Part Eight - Retained Messages

MQTT Essentials part eight from high VMCU's blog and dances. Rick Bellata chimed in to say, except this doesn't work if you use spark plug. Ricardo: "Rick really fucking started a firestorm here" John forebored is absolutely right in his comment about the implementation of spark plug B. At a 10,000 foot view, Rick said I'm going to continue to do so until there's positive movement towards addressing the shortcomings of spark plug C.