AWS IoT Core, a managed cloud service that lets customers connect billions of Internet of Things (IoT) devices and routes trillions of messages to AWS services, announces support for Shared Subscriptions to its MQTT-based messaging broker service. MQTT is a device-to-device messaging communication standard widely used in IoT applications for device to cloud message delivery. AWS IoT Core supports both MQTT3.1.1 and the newer MQTT5 industry specifications allowing clients with either version to take advantage of this new feature seamlessly.