Revert minimum CLI version prereq

Author: kgremban

articles/iot-operations/deploy-iot-ops/howto-deploy-iot-operations.md

@@ -36,7 +36,7 @@ Cloud resources:
 
 Development resources:
 
-* Azure CLI installed on your development machine. This scenario requires Azure CLI version 2.64.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
+* Azure CLI installed on your development machine. This scenario requires Azure CLI version 2.53.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
 
 * The Azure IoT Operations extension for Azure CLI. Use the following command to add the extension or update it to the latest version:
 

articles/iot-operations/deploy-iot-ops/howto-enable-secure-settings.md

@@ -19,7 +19,7 @@ This article provides instructions for enabling secure settings if you didn't do
 
 * An Azure IoT Operations instance deployed with test settings. For example, you chose **Test Settings** when following the instructions in [Deploy Azure IoT Operations to an Arc-enabled Kubernetes cluster](howto-deploy-iot-operations.md).
 
-* Azure CLI installed on your development machine. This scenario requires Azure CLI version 2.64.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
+* Azure CLI installed on your development machine. This scenario requires Azure CLI version 2.53.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
 
 * The latest version of the **connectedk8s** extension for Azure CLI. Use the following command to add the extension or update it to the latest version:
 

articles/iot-operations/deploy-iot-ops/howto-manage-update-uninstall.md

@@ -18,7 +18,7 @@ Use the Azure CLI and Azure portal to manage, uninstall, or update Azure IoT Ope
 
 * An Azure IoT Operations instance deployed to a cluster. For more information, see [Deploy Azure IoT Operations](./howto-deploy-iot-operations.md).
 
-* Azure CLI installed on your development machine. This scenario requires Azure CLI version 2.64.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
+* Azure CLI installed on your development machine. This scenario requires Azure CLI version 2.53.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
 
 * The Azure IoT Operations extension for Azure CLI. Use the following command to add the extension or update it to the latest version:
 

articles/iot-operations/deploy-iot-ops/howto-prepare-cluster.md

@@ -32,7 +32,7 @@ To prepare an Azure Arc-enabled Kubernetes cluster, you need:
    az group create --location <REGION> --resource-group <RESOURCE_GROUP> --subscription <SUBSCRIPTION_ID>
    ```
 
-* Azure CLI version 2.64.0 or newer installed on your cluster machine. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
+* Azure CLI version 2.53.0 or newer installed on your cluster machine. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [How to install the Azure CLI](/cli/azure/install-azure-cli).
 
 * The latest version of the **connectedk8s** extension for Azure CLI:
 

articles/iot-operations/deploy-iot-ops/howto-upgrade.md

@@ -16,7 +16,7 @@ Upgrade an Azure IoT Operations deployment to a newer version. Azure IoT Operati
 
 ## Prerequisites
 
-* Azure CLI. This scenario requires Azure CLI version 2.64.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [Get started with Azure CLI](/cli/azure/get-started-with-azure-cli).
+* Azure CLI. This scenario requires Azure CLI version 2.53.0 or higher. Use `az --version` to check your version and `az upgrade` to update if necessary. For more information, see [Get started with Azure CLI](/cli/azure/get-started-with-azure-cli).
 
 * The Azure IoT Operations extension for Azure CLI. Use the following command to add the extension or update it to the latest version:
 

articles/iot-operations/troubleshoot/known-issues.md

@@ -27,8 +27,6 @@ This article lists the known issues for Azure IoT Operations.
 
 - If you deploy Azure IoT Operations in GitHub Codespaces, shutting down and restarting the Codespace causes a `This codespace is currently running in recovery mode due to a configuration error.` issue. Currently, there's no workaround for the issue. If you need a cluster that supports shutting down and restarting, choose one of the options in [Prepare your Azure Arc-enabled Kubernetes cluster](../deploy-iot-ops/howto-prepare-cluster.md).
 
-- Downgrading the Azure Container Storage extension from 2.2.3 to 2.2.2 causes a logging loop that leads to high CPU usage warnings. To resolve, upgrade the extension back to 2.2.3. For more information, see [Upgrade or downgrade between versions](../deploy-iot-ops/howto-upgrade.md).
-
 ## MQTT broker
 
 - Sometimes, the MQTT broker's memory usage can become unexpectedly high due to internal certificate rotation retries. This results in errors like 'failed to connect trace upload task to diagnostics service endpoint' in the logs. The issue is expected to be addressed in the next patch update. In the meantime, as a workaround, restart each broker pod one by one (including the diagnostic service, probe, and authentication service), making sure each backend recovers before moving on. Alternatively, [re-deploy Azure IoT Operations with higher internal certificate duration](../manage-mqtt-broker/howto-encrypt-internal-traffic.md#internal-certificates), `1500h` or more. 

articles/iot-operations/troubleshoot/troubleshoot.md

@@ -17,7 +17,7 @@ This article contains troubleshooting tips for Azure IoT Operations.
 
 For general deployment and configuration troubleshooting, you can use the Azure CLI IoT Operations *check* and *support* commands.
 
-[Azure CLI version 2.52.0 or higher](/cli/azure/install-azure-cli) is required and the [Azure IoT Operations extension](/cli/azure/iot/ops) installed.
+[Azure CLI version 2.53.0 or higher](/cli/azure/install-azure-cli) is required and the [Azure IoT Operations extension](/cli/azure/iot/ops) installed.
 
 - Use [az iot ops check](/cli/azure/iot/ops#az-iot-ops-check) to evaluate Azure IoT Operations service deployment for health, configuration, and usability. The *check* command can help you find problems in your deployment and configuration.