IoT 8 Cloud IoT Services: AWS vs Azure vs Google Cloud Oct 9, 2026 MQTT: Lightweight Publish/Subscribe for IoT Oct 6, 2026 Azure - Sphere Jan 1, 2021 Azure - IoT Jan 1, 2021 Azure - IoT Hub Jan 1, 2021 Azure - IoT Edge Jan 1, 2021 Azure - IoT Central Jan 1, 2021 Azure - Digital Twins Jan 1, 2021