AKS backup - prerequisites updates

Author: AbhishekMallick-MS

articles/backup/azure-kubernetes-service-cluster-backup-concept.md

@@ -66,10 +66,7 @@ To enable backup for an AKS cluster, see the following prerequisites: .
 
 - Before installing Backup Extension in the AKS cluster, ensure that the CSI drivers and snapshots are enabled for your cluster. If disabled, see [these steps to enable them](../aks/csi-storage-drivers.md#enable-csi-storage-drivers-on-an-existing-cluster).
 
-- Backup Extension uses the AKS cluster’s Managed System Identity to perform backup operations. So, AKS backup doesn't support AKS clusters using Service Principal. You can [update your AKS cluster to use Managed System Identity](../aks/use-managed-identity.md#enable-managed-identities-on-an-existing-aks-cluster).
-
-  >[!Note]
-  >Only Managed System Identity based AKS clusters are supported by AKS backup. The support for User Identity based AKS clusters is currently not available. 
+- Azure Backup for AKS supports AKS clusters using either System Identity or User Identity, for backup operations. Although clusters using Service Principle aren't supported, you can [update such AKS cluster to use a Managed System Identity](../aks/use-managed-identity.md#enable-managed-identities-on-an-existing-aks-cluster).
 
 - The Backup Extension during installation fetches Container Images stored in Microsoft Container Registry (MCR). If you enable a firewall on the AKS cluster, the extension installation process might fail due to access issues on the Registry. Learn [how to allow MCR access from the firewall](../container-registry/container-registry-firewall-access-rules.md#configure-client-firewall-rules-for-mcr).