Posted On: Dec 22, 2022

Amazon IoT Core, a managed cloud service that lets customers connect billions of IoT devices and routes trillions of messages to Amazon Web Services services, announces the General Availability of an upgraded message broker service that includes support for the MQTT version 5 protocol. MQTT5 is an updated device-to-device messaging communication standard that includes significant feature improvements over the previous MQTT version 3.1.1.

The MQTT protocol has become a popular standard for Internet of Things (IoT) data transmission because of its lightweight implementation, especially for low powered devices that are constrained with network bandwidth challenges. The latest version of the industry standard MQTT5 protocol is a significant upgrade, introducing several key features that make systems more robust. Examples include, new Message Headers to allow for faster message processing without the need to decode the message payload, Message and Session Expiration to enable better timeouts, and Request/Response topics to allow message subscribers to positively acknowledge receipt of a message to the sender.

With this release, customers can connect their devices to Amazon IoT Core over MQTT5, or leverage a mix of MQTT version 3 or MQTT version 5 connected devices interacting with one another to support heterogeneous deployments.

To get started and to learn more about MQTT5, refer to the technical documentation.

MQTT5 support for Amazon IoT Core is now available worldwide in the Amazon Web Services China (Beijing) Region, operated by Sinnet and the Amazon Web Services China (Ningxia) Region, operated by NWCD.