What are Retained Messages in MQTT? (2020) | Learn Technology In 5 Minutes 

When we hear the phrase retained messages in MQTT, what comes to our mind is that messages are stored. So we need to ask three more questions to understand the Retained Messages concept. That is; Why it is stored? Where it is stored? and How it is stored? In this episode, we will explore these 3 aspects of Retained Messages in MQTT.
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