update aks standard tier doc with 2023/02/01 api

Author: wangyira

articles/aks/free-standard-pricing-tiers.md

@@ -2,19 +2,26 @@
 title: Azure Kubernetes Service (AKS) Free and Standard pricing tiers for cluster management
 description: Learn about the Azure Kubernetes Service (AKS) Free and Standard pricing tiers for cluster management
 ms.topic: conceptual
-ms.date: 02/17/2023
+ms.date: 04/07/2023
 ms.custom: references_regions, devx-track-azurecli
 ---
 
 # Free and Standard pricing tiers for Azure Kubernetes Service (AKS) cluster management
 
-Azure Kubernetes Service (AKS) is now offering two pricing tiers for cluster management: the **Free tier** and the **Standard tier**.
+Azure Kubernetes Service (AKS) is now offering two pricing tiers for cluster management: the **Free tier** and the **Standard tier**. Both tiers are in the **Base** sku. 
 
 > [!IMPORTANT]
 >
-> **Standard tier** is currently not available in Azure API 2023-01-01 due to a [critical bug](https://github.com/Azure/AKS/issues/3481). To enable the Uptime SLA feature in your cluster, you'll use the existing **Paid tier** and the `--uptime-sla` parameter.
+> Uptime SLA has been repositioned as a default feature included with the Standard tier.
 >
-> Alternatively, you can select the **Standard tier** or **Free tier** on Azure portal when creating or updating an AKS cluster.
+> The repositioning will result in the following API changes:
+>
+> |         |Prior to 2023-02-01 API|Starting from 2023-02-01 API|
+> |----------|-----------|------------|
+> |ManagedClusterSKUName|"Basic"|"Base"|
+> |ManagedClusterSKUTier|"Free" <br> "Paid"|"Free" <br> "Standard"|
+>
+> "Basic" and "Paid" is removed in the 2023-02-01 and 2023-02-02 Preview API version, and this will be a breaking change in API versions 2023-02-01 and 2023-02-02 Preview or newer. If you use automated scripts, CD pipelines, ARM templates, Terraform, or other third-party tooling that relies on the above parameters, please be sure to update the API parameters to use "Base" with "Free" or "Base" with "Standard" before upgrading to the 2023-02-01 and 2023-02-02 Preview API or newer API versions. 
 
 |                  |Free tier|Standard tier|
 |------------------|---------|--------|
@@ -27,7 +34,7 @@ For more information on pricing, see the [AKS pricing details](https://azure.mic
 
 ## Uptime SLA terms and conditions
 
-The Uptime SLA feature is included in the Paid tier and is enabled per cluster. For more information on pricing, see the [AKS pricing details](https://azure.microsoft.com/pricing/details/kubernetes-service/).
+In the Standard tier, the Uptime SLA feature is enabled by default per cluster. For more information, see [SLA for AKS](https://azure.microsoft.com/support/legal/sla/kubernetes-service/v1_1/).
 
 ## Region availability
 
@@ -36,68 +43,65 @@ The Uptime SLA feature is included in the Paid tier and is enabled per cluster.
 
 ## Before you begin
 
-[Azure CLI](/cli/azure/install-azure-cli) version 2.8.0 or later and configured. Run `az --version` to find the version. If you need to install or upgrade, see [Install Azure CLI][install-azure-cli].
+[Azure CLI](/cli/azure/install-azure-cli) version 2.47.0 or later and configured. Run `az --version` to find the version. If you need to install or upgrade, see [Install Azure CLI][install-azure-cli].
 
 ## Create a new cluster in the Free tier or Paid tier
 
-> [!IMPORTANT]
-> `--tier standard` and `--tier free` are currently unavailable in Azure CLI 2.46.0 due to a [critical bug](https://github.com/Azure/AKS/issues/3481). To enable the Uptime SLA feature, use the commands below.
-
 Use the Azure CLI to create a new cluster on an AKS pricing tier. You can create your cluster in an existing resource group or create a new one. To learn more about resource groups and working with them, see [managing resource groups using the Azure CLI][manage-resource-group-cli].
 
 Use the [`az aks create`][az-aks-create] command to create an AKS cluster. The commands below show you how to create a new resource group named *myResourceGroup* and a cluster named *myAKSCluster* in that resource group in each tier.
 
 ```azurecli-interactive
 # Create a new AKS cluster in the Free tier
 
-az aks create --resource-group myResourceGroup --name myAKSCluster --no-uptime-sla
+az aks create --resource-group myResourceGroup --name myAKSCluster --tier free
 
-# Create a new AKS cluster in the Paid tier
+# Create a new AKS cluster in the Standard tier
 
-az aks create --resource-group myResourceGroup --name myAKSCluster --uptime-sla
+az aks create --resource-group myResourceGroup --name myAKSCluster --tier standard
 ```
 
 Once the deployment completes, it returns JSON-formatted information about your cluster:
 
 ```output
-# Sample output for --no-uptime-sla
+# Sample output for --tier free
 
   },
   "sku": {
-    "name": "Basic",
+    "name": "Base",
     "tier": "Free"
   },
 
-# Sample output for --uptime-sla
+# Sample output for --tier standard
 
   },
   "sku": {
     "name": "Base",
-    "tier": "Paid"
+    "tier": "Standard"
   },
 ```
 
-## Update the tier of an existing cluster
+## Update the tier of an existing AKS cluster
 
 The following example uses the [`az aks update`][az-aks-update] command to update the existing cluster.
 
 ```azurecli-interactive
 # Update an existing cluster to the Free tier
 
-az aks update --resource-group myResourceGroup --name myAKSCluster --no-uptime-sla
+az aks update --resource-group myResourceGroup --name myAKSCluster --tier free
 
 # Update an existing cluster to the Standard tier
 
-az aks update --resource-group myResourceGroup --name myAKSCluster --uptime-sla
+az aks update --resource-group myResourceGroup --name myAKSCluster --tier standard
 ```
 
-This process takes several minutes to complete. When finished, the following example JSON snippet shows the Paid tier for the SKU, indicating your cluster is enabled with Uptime SLA.
+This process takes several minutes to complete. When finished, the following example JSON snippet shows updating the existing cluster to the Standard tier in the Base SKU.
 
 ```output
   },
   "sku": {
     "name": "Base",
-    "tier": "Paid"
+    "tier": "Standard"
   },
 ```