diff --git a/sdk/containerservice/arm-containerservice/src/containerServiceClientContext.ts b/sdk/containerservice/arm-containerservice/src/containerServiceClientContext.ts
index c4696f992968..2f859f9dce91 100644
--- a/sdk/containerservice/arm-containerservice/src/containerServiceClientContext.ts
+++ b/sdk/containerservice/arm-containerservice/src/containerServiceClientContext.ts
@@ -44,7 +44,7 @@ export class ContainerServiceClientContext extends msRestAzure.AzureServiceClien
 
     super(credentials, options);
 
-    this.apiVersion = '2020-12-01';
+    this.apiVersion = '2021-03-01';
     this.acceptLanguage = 'en-US';
     this.longRunningOperationRetryTimeout = 30;
     this.baseUri = options.baseUri || this.baseUri || "https://management.azure.com";
diff --git a/sdk/containerservice/arm-containerservice/src/models/agentPoolsMappers.ts b/sdk/containerservice/arm-containerservice/src/models/agentPoolsMappers.ts
index 6c85a191b95f..22e6726ce610 100644
--- a/sdk/containerservice/arm-containerservice/src/models/agentPoolsMappers.ts
+++ b/sdk/containerservice/arm-containerservice/src/models/agentPoolsMappers.ts
@@ -32,6 +32,7 @@ export {
   ManagedClusterAgentPoolProfileProperties,
   ManagedClusterAPIServerAccessProfile,
   ManagedClusterAutoUpgradeProfile,
+  ManagedClusterHTTPProxyConfig,
   ManagedClusterIdentity,
   ManagedClusterIdentityUserAssignedIdentitiesValue,
   ManagedClusterLoadBalancerProfile,
@@ -50,6 +51,7 @@ export {
   PowerState,
   PrivateEndpoint,
   PrivateEndpointConnection,
+  PrivateLinkResource,
   PrivateLinkServiceConnectionState,
   Resource,
   ResourceReference,
diff --git a/sdk/containerservice/arm-containerservice/src/models/index.ts b/sdk/containerservice/arm-containerservice/src/models/index.ts
index 5cbe991194d2..0d9790ee4df0 100644
--- a/sdk/containerservice/arm-containerservice/src/models/index.ts
+++ b/sdk/containerservice/arm-containerservice/src/models/index.ts
@@ -482,7 +482,7 @@ export interface ManagedClusterAgentPoolProfileProperties {
   /**
    * KubeletDiskType determines the placement of emptyDir volumes, container runtime data root, and
    * Kubelet ephemeral storage. Currently allows one value, OS, resulting in Kubelet using the OS
-   * disk for data. Possible values include: 'OS'
+   * disk for data. Possible values include: 'OS', 'Temporary'
    */
   kubeletDiskType?: KubeletDiskType;
   /**
@@ -554,6 +554,10 @@ export interface ManagedClusterAgentPoolProfileProperties {
    * Enable public IP for nodes
    */
   enableNodePublicIP?: boolean;
+  /**
+   * Public IP Prefix ID. VM nodes use IPs assigned from this Public IP Prefix.
+   */
+  nodePublicIPPrefixID?: string;
   /**
    * ScaleSetPriority to be used to specify virtual machine scale set priority. Default to regular.
    * Possible values include: 'Spot', 'Regular'. Default value: 'Regular'.
@@ -600,6 +604,10 @@ export interface ManagedClusterAgentPoolProfileProperties {
    * Whether to enable EncryptionAtHost
    */
   enableEncryptionAtHost?: boolean;
+  /**
+   * Whether to use FIPS enabled OS
+   */
+  enableFIPS?: boolean;
 }
 
 /**
@@ -678,7 +686,7 @@ export interface AgentPool extends SubResource {
   /**
    * KubeletDiskType determines the placement of emptyDir volumes, container runtime data root, and
    * Kubelet ephemeral storage. Currently allows one value, OS, resulting in Kubelet using the OS
-   * disk for data. Possible values include: 'OS'
+   * disk for data. Possible values include: 'OS', 'Temporary'
    */
   kubeletDiskType?: KubeletDiskType;
   /**
@@ -750,6 +758,10 @@ export interface AgentPool extends SubResource {
    * Enable public IP for nodes
    */
   enableNodePublicIP?: boolean;
+  /**
+   * Public IP Prefix ID. VM nodes use IPs assigned from this Public IP Prefix.
+   */
+  nodePublicIPPrefixID?: string;
   /**
    * ScaleSetPriority to be used to specify virtual machine scale set priority. Default to regular.
    * Possible values include: 'Spot', 'Regular'. Default value: 'Regular'.
@@ -796,6 +808,10 @@ export interface AgentPool extends SubResource {
    * Whether to enable EncryptionAtHost
    */
   enableEncryptionAtHost?: boolean;
+  /**
+   * Whether to use FIPS enabled OS
+   */
+  enableFIPS?: boolean;
 }
 
 /**
@@ -825,6 +841,10 @@ export interface ManagedClusterWindowsProfile {
    * Benefits for Windows VMs. Possible values include: 'None', 'Windows_Server'
    */
   licenseType?: LicenseType;
+  /**
+   * Whether to enable CSI proxy.
+   */
+  enableCSIProxy?: boolean;
 }
 
 /**
@@ -1203,6 +1223,10 @@ export interface ManagedClusterPodIdentityProfile {
    * Whether the pod identity addon is enabled.
    */
   enabled?: boolean;
+  /**
+   * Customer consent for enabling AAD pod identity addon in cluster using Kubenet network plugin.
+   */
+  allowNetworkPluginKubenet?: boolean;
   /**
    * User assigned pod identity settings.
    */
@@ -1253,7 +1277,8 @@ export interface ManagedClusterAADProfile {
  */
 export interface ManagedClusterAutoUpgradeProfile {
   /**
-   * upgrade channel for auto upgrade. Possible values include: 'rapid', 'stable', 'patch', 'none'
+   * upgrade channel for auto upgrade. Possible values include: 'rapid', 'stable', 'patch',
+   * 'node-image', 'none'
    */
   upgradeChannel?: UpgradeChannel;
 }
@@ -1308,6 +1333,59 @@ export interface ManagedClusterAPIServerAccessProfile {
 export interface ManagedClusterPropertiesIdentityProfileValue extends UserAssignedIdentity {
 }
 
+/**
+ * A private link resource
+ */
+export interface PrivateLinkResource {
+  /**
+   * The ID of the private link resource.
+   */
+  id?: string;
+  /**
+   * The name of the private link resource.
+   */
+  name?: string;
+  /**
+   * The resource type.
+   */
+  type?: string;
+  /**
+   * The group ID of the resource.
+   */
+  groupId?: string;
+  /**
+   * RequiredMembers of the resource
+   */
+  requiredMembers?: string[];
+  /**
+   * The private link service ID of the resource, this field is exposed only to NRP internally.
+   * **NOTE: This property will not be serialized. It can only be populated by the server.**
+   */
+  readonly privateLinkServiceID?: string;
+}
+
+/**
+ * Configurations for provisioning the cluster with HTTP proxy servers.
+ */
+export interface ManagedClusterHTTPProxyConfig {
+  /**
+   * HTTP proxy server endpoint to use.
+   */
+  httpProxy?: string;
+  /**
+   * HTTPS proxy server endpoint to use.
+   */
+  httpsProxy?: string;
+  /**
+   * Endpoints that should not go through proxy.
+   */
+  noProxy?: string[];
+  /**
+   * Alternative CA cert to use for connecting to proxy servers.
+   */
+  trustedCa?: string;
+}
+
 /**
  * An interface representing ManagedClusterIdentityUserAssignedIdentitiesValue.
  */
@@ -1396,6 +1474,10 @@ export interface ManagedCluster extends Resource {
    * DNS prefix specified when creating the managed cluster.
    */
   dnsPrefix?: string;
+  /**
+   * FQDN subdomain specified when creating private cluster with custom private dns zone.
+   */
+  fqdnSubdomain?: string;
   /**
    * FQDN for the master pool.
    * **NOTE: This property will not be serialized. It can only be populated by the server.**
@@ -1406,6 +1488,11 @@ export interface ManagedCluster extends Resource {
    * **NOTE: This property will not be serialized. It can only be populated by the server.**
    */
   readonly privateFQDN?: string;
+  /**
+   * FQDN for the master pool which used by proxy config.
+   * **NOTE: This property will not be serialized. It can only be populated by the server.**
+   */
+  readonly azurePortalFQDN?: string;
   /**
    * Properties of the agent pool.
    */
@@ -1472,6 +1559,14 @@ export interface ManagedCluster extends Resource {
    * Identities associated with the cluster.
    */
   identityProfile?: { [propertyName: string]: ManagedClusterPropertiesIdentityProfileValue };
+  /**
+   * Private link resources associated with the cluster.
+   */
+  privateLinkResources?: PrivateLinkResource[];
+  /**
+   * Configurations for provisioning the cluster with HTTP proxy servers.
+   */
+  httpProxyConfig?: ManagedClusterHTTPProxyConfig;
   /**
    * The identity of the managed cluster, if configured.
    */
@@ -1751,37 +1846,6 @@ export interface PrivateEndpointConnectionListResult {
   value?: PrivateEndpointConnection[];
 }
 
-/**
- * A private link resource
- */
-export interface PrivateLinkResource {
-  /**
-   * The ID of the private link resource.
-   */
-  id?: string;
-  /**
-   * The name of the private link resource.
-   */
-  name?: string;
-  /**
-   * The resource type.
-   */
-  type?: string;
-  /**
-   * The group ID of the resource.
-   */
-  groupId?: string;
-  /**
-   * RequiredMembers of the resource
-   */
-  requiredMembers?: string[];
-  /**
-   * The private link service ID of the resource, this field is exposed only to NRP internally.
-   * **NOTE: This property will not be serialized. It can only be populated by the server.**
-   */
-  readonly privateLinkServiceID?: string;
-}
-
 /**
  * A list of private link resources
  */
@@ -1909,11 +1973,11 @@ export type OSDiskType = 'Managed' | 'Ephemeral';
 
 /**
  * Defines values for KubeletDiskType.
- * Possible values include: 'OS'
+ * Possible values include: 'OS', 'Temporary'
  * @readonly
  * @enum {string}
  */
-export type KubeletDiskType = 'OS';
+export type KubeletDiskType = 'OS' | 'Temporary';
 
 /**
  * Defines values for OSType.
@@ -2038,11 +2102,11 @@ export type ManagedClusterPodIdentityProvisioningState = 'Assigned' | 'Updating'
 
 /**
  * Defines values for UpgradeChannel.
- * Possible values include: 'rapid', 'stable', 'patch', 'none'
+ * Possible values include: 'rapid', 'stable', 'patch', 'node-image', 'none'
  * @readonly
  * @enum {string}
  */
-export type UpgradeChannel = 'rapid' | 'stable' | 'patch' | 'none';
+export type UpgradeChannel = 'rapid' | 'stable' | 'patch' | 'node-image' | 'none';
 
 /**
  * Defines values for Expander.
diff --git a/sdk/containerservice/arm-containerservice/src/models/maintenanceConfigurationsMappers.ts b/sdk/containerservice/arm-containerservice/src/models/maintenanceConfigurationsMappers.ts
index cb88910b32f3..29b0fd9fd93e 100644
--- a/sdk/containerservice/arm-containerservice/src/models/maintenanceConfigurationsMappers.ts
+++ b/sdk/containerservice/arm-containerservice/src/models/maintenanceConfigurationsMappers.ts
@@ -28,6 +28,7 @@ export {
   ManagedClusterAgentPoolProfileProperties,
   ManagedClusterAPIServerAccessProfile,
   ManagedClusterAutoUpgradeProfile,
+  ManagedClusterHTTPProxyConfig,
   ManagedClusterIdentity,
   ManagedClusterIdentityUserAssignedIdentitiesValue,
   ManagedClusterLoadBalancerProfile,
@@ -46,6 +47,7 @@ export {
   PowerState,
   PrivateEndpoint,
   PrivateEndpointConnection,
+  PrivateLinkResource,
   PrivateLinkServiceConnectionState,
   Resource,
   ResourceReference,
diff --git a/sdk/containerservice/arm-containerservice/src/models/managedClustersMappers.ts b/sdk/containerservice/arm-containerservice/src/models/managedClustersMappers.ts
index 3128db3eaae9..8597b67544a2 100644
--- a/sdk/containerservice/arm-containerservice/src/models/managedClustersMappers.ts
+++ b/sdk/containerservice/arm-containerservice/src/models/managedClustersMappers.ts
@@ -29,6 +29,7 @@ export {
   ManagedClusterAgentPoolProfileProperties,
   ManagedClusterAPIServerAccessProfile,
   ManagedClusterAutoUpgradeProfile,
+  ManagedClusterHTTPProxyConfig,
   ManagedClusterIdentity,
   ManagedClusterIdentityUserAssignedIdentitiesValue,
   ManagedClusterListResult,
@@ -51,6 +52,7 @@ export {
   PowerState,
   PrivateEndpoint,
   PrivateEndpointConnection,
+  PrivateLinkResource,
   PrivateLinkServiceConnectionState,
   Resource,
   ResourceReference,
diff --git a/sdk/containerservice/arm-containerservice/src/models/mappers.ts b/sdk/containerservice/arm-containerservice/src/models/mappers.ts
index 7d38494880bb..d58d031b540b 100644
--- a/sdk/containerservice/arm-containerservice/src/models/mappers.ts
+++ b/sdk/containerservice/arm-containerservice/src/models/mappers.ts
@@ -723,6 +723,12 @@ export const ManagedClusterAgentPoolProfileProperties: msRest.CompositeMapper =
           name: "Boolean"
         }
       },
+      nodePublicIPPrefixID: {
+        serializedName: "nodePublicIPPrefixID",
+        type: {
+          name: "String"
+        }
+      },
       scaleSetPriority: {
         serializedName: "scaleSetPriority",
         defaultValue: 'Regular',
@@ -801,6 +807,12 @@ export const ManagedClusterAgentPoolProfileProperties: msRest.CompositeMapper =
         type: {
           name: "Boolean"
         }
+      },
+      enableFIPS: {
+        serializedName: "enableFIPS",
+        type: {
+          name: "Boolean"
+        }
       }
     }
   }
@@ -971,6 +983,12 @@ export const AgentPool: msRest.CompositeMapper = {
           name: "Boolean"
         }
       },
+      nodePublicIPPrefixID: {
+        serializedName: "properties.nodePublicIPPrefixID",
+        type: {
+          name: "String"
+        }
+      },
       scaleSetPriority: {
         serializedName: "properties.scaleSetPriority",
         defaultValue: 'Regular',
@@ -1049,6 +1067,12 @@ export const AgentPool: msRest.CompositeMapper = {
         type: {
           name: "Boolean"
         }
+      },
+      enableFIPS: {
+        serializedName: "properties.enableFIPS",
+        type: {
+          name: "Boolean"
+        }
       }
     }
   }
@@ -1078,6 +1102,12 @@ export const ManagedClusterWindowsProfile: msRest.CompositeMapper = {
         type: {
           name: "String"
         }
+      },
+      enableCSIProxy: {
+        serializedName: "enableCSIProxy",
+        type: {
+          name: "Boolean"
+        }
       }
     }
   }
@@ -1753,6 +1783,12 @@ export const ManagedClusterPodIdentityProfile: msRest.CompositeMapper = {
           name: "Boolean"
         }
       },
+      allowNetworkPluginKubenet: {
+        serializedName: "allowNetworkPluginKubenet",
+        type: {
+          name: "Boolean"
+        }
+      },
       userAssignedIdentities: {
         serializedName: "userAssignedIdentities",
         type: {
@@ -2010,6 +2046,97 @@ export const ManagedClusterPropertiesIdentityProfileValue: msRest.CompositeMappe
   }
 };
 
+export const PrivateLinkResource: msRest.CompositeMapper = {
+  serializedName: "PrivateLinkResource",
+  type: {
+    name: "Composite",
+    className: "PrivateLinkResource",
+    modelProperties: {
+      id: {
+        serializedName: "id",
+        type: {
+          name: "String"
+        }
+      },
+      name: {
+        serializedName: "name",
+        type: {
+          name: "String"
+        }
+      },
+      type: {
+        serializedName: "type",
+        type: {
+          name: "String"
+        }
+      },
+      groupId: {
+        serializedName: "groupId",
+        type: {
+          name: "String"
+        }
+      },
+      requiredMembers: {
+        serializedName: "requiredMembers",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "String"
+            }
+          }
+        }
+      },
+      privateLinkServiceID: {
+        readOnly: true,
+        serializedName: "privateLinkServiceID",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
+export const ManagedClusterHTTPProxyConfig: msRest.CompositeMapper = {
+  serializedName: "ManagedClusterHTTPProxyConfig",
+  type: {
+    name: "Composite",
+    className: "ManagedClusterHTTPProxyConfig",
+    modelProperties: {
+      httpProxy: {
+        serializedName: "httpProxy",
+        type: {
+          name: "String"
+        }
+      },
+      httpsProxy: {
+        serializedName: "httpsProxy",
+        type: {
+          name: "String"
+        }
+      },
+      noProxy: {
+        serializedName: "noProxy",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "String"
+            }
+          }
+        }
+      },
+      trustedCa: {
+        serializedName: "trustedCa",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
 export const ManagedClusterIdentityUserAssignedIdentitiesValue: msRest.CompositeMapper = {
   serializedName: "ManagedClusterIdentity_userAssignedIdentitiesValue",
   type: {
@@ -2144,6 +2271,12 @@ export const ManagedCluster: msRest.CompositeMapper = {
           name: "String"
         }
       },
+      fqdnSubdomain: {
+        serializedName: "properties.fqdnSubdomain",
+        type: {
+          name: "String"
+        }
+      },
       fqdn: {
         readOnly: true,
         serializedName: "properties.fqdn",
@@ -2158,6 +2291,13 @@ export const ManagedCluster: msRest.CompositeMapper = {
           name: "String"
         }
       },
+      azurePortalFQDN: {
+        readOnly: true,
+        serializedName: "properties.azurePortalFQDN",
+        type: {
+          name: "String"
+        }
+      },
       agentPoolProfiles: {
         serializedName: "properties.agentPoolProfiles",
         type: {
@@ -2281,6 +2421,25 @@ export const ManagedCluster: msRest.CompositeMapper = {
           }
         }
       },
+      privateLinkResources: {
+        serializedName: "properties.privateLinkResources",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "PrivateLinkResource"
+            }
+          }
+        }
+      },
+      httpProxyConfig: {
+        serializedName: "properties.httpProxyConfig",
+        type: {
+          name: "Composite",
+          className: "ManagedClusterHTTPProxyConfig"
+        }
+      },
       identity: {
         serializedName: "identity",
         type: {
@@ -2750,58 +2909,6 @@ export const PrivateEndpointConnectionListResult: msRest.CompositeMapper = {
   }
 };
 
-export const PrivateLinkResource: msRest.CompositeMapper = {
-  serializedName: "PrivateLinkResource",
-  type: {
-    name: "Composite",
-    className: "PrivateLinkResource",
-    modelProperties: {
-      id: {
-        serializedName: "id",
-        type: {
-          name: "String"
-        }
-      },
-      name: {
-        serializedName: "name",
-        type: {
-          name: "String"
-        }
-      },
-      type: {
-        serializedName: "type",
-        type: {
-          name: "String"
-        }
-      },
-      groupId: {
-        serializedName: "groupId",
-        type: {
-          name: "String"
-        }
-      },
-      requiredMembers: {
-        serializedName: "requiredMembers",
-        type: {
-          name: "Sequence",
-          element: {
-            type: {
-              name: "String"
-            }
-          }
-        }
-      },
-      privateLinkServiceID: {
-        readOnly: true,
-        serializedName: "privateLinkServiceID",
-        type: {
-          name: "String"
-        }
-      }
-    }
-  }
-};
-
 export const PrivateLinkResourcesListResult: msRest.CompositeMapper = {
   serializedName: "PrivateLinkResourcesListResult",
   type: {
diff --git a/sdk/containerservice/arm-containerservice/src/models/privateEndpointConnectionsMappers.ts b/sdk/containerservice/arm-containerservice/src/models/privateEndpointConnectionsMappers.ts
index b507c48ec66e..ac982ea08620 100644
--- a/sdk/containerservice/arm-containerservice/src/models/privateEndpointConnectionsMappers.ts
+++ b/sdk/containerservice/arm-containerservice/src/models/privateEndpointConnectionsMappers.ts
@@ -27,6 +27,7 @@ export {
   ManagedClusterAgentPoolProfileProperties,
   ManagedClusterAPIServerAccessProfile,
   ManagedClusterAutoUpgradeProfile,
+  ManagedClusterHTTPProxyConfig,
   ManagedClusterIdentity,
   ManagedClusterIdentityUserAssignedIdentitiesValue,
   ManagedClusterLoadBalancerProfile,
@@ -46,6 +47,7 @@ export {
   PrivateEndpoint,
   PrivateEndpointConnection,
   PrivateEndpointConnectionListResult,
+  PrivateLinkResource,
   PrivateLinkServiceConnectionState,
   Resource,
   ResourceReference,