diff --git a/azure-mgmt-containerservice/HISTORY.rst b/azure-mgmt-containerservice/HISTORY.rst
index 13f074e54861..48af47c2b998 100644
--- a/azure-mgmt-containerservice/HISTORY.rst
+++ b/azure-mgmt-containerservice/HISTORY.rst
@@ -3,6 +3,13 @@
 Release History
 ===============
 
+4.1.0 (2018-06-13)
+++++++++++++++++++
+
+**Features**
+
+- Add node_resource_group attribute to some models
+
 4.0.0 (2018-05-25)
 ++++++++++++++++++
 
@@ -30,7 +37,7 @@ This version uses a next-generation code generator that *might* introduce breaki
 
   - Return type changes from `msrestazure.azure_operation.AzureOperationPoller` to `msrest.polling.LROPoller`. External API is the same.
   - Return type is now **always** a `msrest.polling.LROPoller`, regardless of the optional parameters used.
-  - The behavior has changed when using `raw=True`. Instead of returning the initial call result as `ClientRawResponse`, 
+  - The behavior has changed when using `raw=True`. Instead of returning the initial call result as `ClientRawResponse`,
     without polling, now this returns an LROPoller. After polling, the final resource will be returned as a `ClientRawResponse`.
   - New `polling` parameter. The default behavior is `Polling=True` which will poll using ARM algorithm. When `Polling=False`,
     the response of the initial call will be returned without polling.
diff --git a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster.py b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster.py
index 3dbfcf996b0e..477df745286c 100644
--- a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster.py
+++ b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster.py
@@ -55,6 +55,9 @@ class ManagedCluster(Resource):
     :param addon_profiles: Profile of managed cluster add-on.
     :type addon_profiles: dict[str,
      ~azure.mgmt.containerservice.models.ManagedClusterAddonProfile]
+    :ivar node_resource_group: Name of the resource group containing agent
+     pool nodes.
+    :vartype node_resource_group: str
     :param enable_rbac: Whether to enable Kubernetes Role-Based Access
      Control.
     :type enable_rbac: bool
@@ -73,6 +76,7 @@ class ManagedCluster(Resource):
         'location': {'required': True},
         'provisioning_state': {'readonly': True},
         'fqdn': {'readonly': True},
+        'node_resource_group': {'readonly': True},
     }
 
     _attribute_map = {
@@ -89,6 +93,7 @@ class ManagedCluster(Resource):
         'linux_profile': {'key': 'properties.linuxProfile', 'type': 'ContainerServiceLinuxProfile'},
         'service_principal_profile': {'key': 'properties.servicePrincipalProfile', 'type': 'ContainerServiceServicePrincipalProfile'},
         'addon_profiles': {'key': 'properties.addonProfiles', 'type': '{ManagedClusterAddonProfile}'},
+        'node_resource_group': {'key': 'properties.nodeResourceGroup', 'type': 'str'},
         'enable_rbac': {'key': 'properties.enableRBAC', 'type': 'bool'},
         'network_profile': {'key': 'properties.networkProfile', 'type': 'ContainerServiceNetworkProfile'},
         'aad_profile': {'key': 'properties.aadProfile', 'type': 'ManagedClusterAADProfile'},
@@ -104,6 +109,7 @@ def __init__(self, **kwargs):
         self.linux_profile = kwargs.get('linux_profile', None)
         self.service_principal_profile = kwargs.get('service_principal_profile', None)
         self.addon_profiles = kwargs.get('addon_profiles', None)
+        self.node_resource_group = None
         self.enable_rbac = kwargs.get('enable_rbac', None)
         self.network_profile = kwargs.get('network_profile', None)
         self.aad_profile = kwargs.get('aad_profile', None)
diff --git a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster_py3.py b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster_py3.py
index 2bd2f52cb5e4..6ac3e95acdda 100644
--- a/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster_py3.py
+++ b/azure-mgmt-containerservice/azure/mgmt/containerservice/models/managed_cluster_py3.py
@@ -55,6 +55,9 @@ class ManagedCluster(Resource):
     :param addon_profiles: Profile of managed cluster add-on.
     :type addon_profiles: dict[str,
      ~azure.mgmt.containerservice.models.ManagedClusterAddonProfile]
+    :ivar node_resource_group: Name of the resource group containing agent
+     pool nodes.
+    :vartype node_resource_group: str
     :param enable_rbac: Whether to enable Kubernetes Role-Based Access
      Control.
     :type enable_rbac: bool
@@ -73,6 +76,7 @@ class ManagedCluster(Resource):
         'location': {'required': True},
         'provisioning_state': {'readonly': True},
         'fqdn': {'readonly': True},
+        'node_resource_group': {'readonly': True},
     }
 
     _attribute_map = {
@@ -89,6 +93,7 @@ class ManagedCluster(Resource):
         'linux_profile': {'key': 'properties.linuxProfile', 'type': 'ContainerServiceLinuxProfile'},
         'service_principal_profile': {'key': 'properties.servicePrincipalProfile', 'type': 'ContainerServiceServicePrincipalProfile'},
         'addon_profiles': {'key': 'properties.addonProfiles', 'type': '{ManagedClusterAddonProfile}'},
+        'node_resource_group': {'key': 'properties.nodeResourceGroup', 'type': 'str'},
         'enable_rbac': {'key': 'properties.enableRBAC', 'type': 'bool'},
         'network_profile': {'key': 'properties.networkProfile', 'type': 'ContainerServiceNetworkProfile'},
         'aad_profile': {'key': 'properties.aadProfile', 'type': 'ManagedClusterAADProfile'},
@@ -104,6 +109,7 @@ def __init__(self, *, location: str, tags=None, kubernetes_version: str=None, dn
         self.linux_profile = linux_profile
         self.service_principal_profile = service_principal_profile
         self.addon_profiles = addon_profiles
+        self.node_resource_group = None
         self.enable_rbac = enable_rbac
         self.network_profile = network_profile
         self.aad_profile = aad_profile
diff --git a/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py b/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py
index 20cee28211d4..204d7f82b78a 100644
--- a/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py
+++ b/azure-mgmt-containerservice/azure/mgmt/containerservice/version.py
@@ -9,5 +9,5 @@
 # regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "4.0.0"
+VERSION = "4.1.0"