Clarify support

Author: dominicbetts

articles/iot-operations/includes/supported-versions.md

@@ -7,11 +7,14 @@ ms.date: 06/16/2025
 ms.author: dobett
 ---
 
-Microsoft always supports three generally available (GA) versions of Azure IoT Operations at any one time: the latest version, and two previous minor versions.
+Microsoft always supports three generally available (GA) versions of Azure IoT Operations at any one time: the latest version, and the two previous minor versions.
 
-Currently, there are only two minor versions available. The currently supported versions are:
+Currently, there are only two minor versions available. [Azure support](https://azure.microsoft.com/support/plans) is currently available for the following versions:
 
 - [1.1.x](https://github.com/Azure/azure-iot-operations/releases/tag/v1.1.19) (latest GA version)
 - [1.0.x](https://github.com/Azure/azure-iot-operations/releases/tag/v1.0.9) (previous minor GA version)
 
+> [!IMPORTANT]
+> Previous minor versions don't receive security patches. Always upgrade to the latest version to ensure you have the latest security updates and features.
+
 To verify your current version, see the overview page for your Azure IoT Operations instance in the Azure portal or use the Azure IoT Operations CLI [az iot ops instance show](/cli/azure/iot/ops#az-iot-ops-show) command.