Generally Available: Azure Event Grid releases for April 2026

Azure Event Grid namespaces are expanding MQTT capabilities to help organizations build more connected, scalable, and MQTT V5 standards-based real-time solutions. These updates make it easier to deliver responsive device experiences, simplify backend integration, and accelerate modern IoT application development. * [MQTT Retain support](https://learn.microsoft.com/en-us/azure/event-grid/mqtt-retain): Deliver a better subscriber experience by ensuring new subscribers can immediately receive the latest known state for a topic, without waiting for the next message. * [Shared Subscriptions:](https://learn.microsoft.com/en-us/azure/event-grid/mqtt-shared-subscriptions) Scale message processing more efficiently by distributing traffic across multiple consumers in the same subscription group, helping support higher throughput and more resilient architectures. * [HTTP Publish of MQTT messages](https://learn.microsoft.com/en-us/azure/event-grid/mqtt-http-publish): Bring HTTP-based applications into MQTT workflows with a simple publishing path that helps connect backend services, business applications, and device ecosystems more seamlessly. [Learn more](https://techcommunity.microsoft.com/blog/messagingonazureblog/build-smarter-simpler-iot-messaging-with-azure-event-grid-mqtt-broker/4518672).