In a world with increasingly complex IoT applications, MQTT is becoming the standard protocol for applications that operate in environments where network connectivity is intermittent or unreliable. Businesses are seeing value from making MQTT part of their tech stack by using it to communicate between consumer IoT devices, such as smart home devices and wearable devices, manufacturing facilities, automobiles, retail businesses, logistics companies, cities, and agriculture businesses. MQTT provides the performance benefits that are ideal for these applications, including reducing bandwidth usage and maximizing battery life, and is being used in industries such as automotive, where it's enabling predictive maintenance to extend the life of vehicles, and smart cities, where it's providing a common communication protocol for sensors and devices made by many different vendors.