diff --git a/azure-mgmt-iotcentral/HISTORY.rst b/azure-mgmt-iotcentral/HISTORY.rst
index f734c122f26e..afdf15c48011 100644
--- a/azure-mgmt-iotcentral/HISTORY.rst
+++ b/azure-mgmt-iotcentral/HISTORY.rst
@@ -3,6 +3,23 @@
 Release History
 ===============
 
+1.0.0 (2018-10-26)
+++++++++++++++++++
+
+**Features**
+
+- Model OperationInputs has a new parameter type
+- Model ErrorDetails has a new parameter details
+- Added operation AppsOperations.check_subdomain_availability
+
+**Breaking changes**
+
+- Operation AppsOperations.check_name_availability has a new signature
+
+**Note**
+
+- azure-mgmt-nspkg is not installed anymore on Python 3 (PEP420-based namespace package)
+
 0.2.0 (2018-08-07)
 ++++++++++++++++++
 
diff --git a/azure-mgmt-iotcentral/MANIFEST.in b/azure-mgmt-iotcentral/MANIFEST.in
index bb37a2723dae..6ceb27f7a96e 100644
--- a/azure-mgmt-iotcentral/MANIFEST.in
+++ b/azure-mgmt-iotcentral/MANIFEST.in
@@ -1 +1,4 @@
 include *.rst
+include azure/__init__.py
+include azure/mgmt/__init__.py
+
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/__init__.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/__init__.py
index dc2d42d83462..2819b4e949e1 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/__init__.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/__init__.py
@@ -14,26 +14,27 @@
     from .app_py3 import App
     from .app_patch_py3 import AppPatch
     from .resource_py3 import Resource
+    from .error_response_body_py3 import ErrorResponseBody
     from .error_details_py3 import ErrorDetails, ErrorDetailsException
     from .operation_display_py3 import OperationDisplay
     from .operation_py3 import Operation
     from .operation_inputs_py3 import OperationInputs
-    from .app_name_availability_info_py3 import AppNameAvailabilityInfo
+    from .app_availability_info_py3 import AppAvailabilityInfo
 except (SyntaxError, ImportError):
     from .app_sku_info import AppSkuInfo
     from .app import App
     from .app_patch import AppPatch
     from .resource import Resource
+    from .error_response_body import ErrorResponseBody
     from .error_details import ErrorDetails, ErrorDetailsException
     from .operation_display import OperationDisplay
     from .operation import Operation
     from .operation_inputs import OperationInputs
-    from .app_name_availability_info import AppNameAvailabilityInfo
+    from .app_availability_info import AppAvailabilityInfo
 from .app_paged import AppPaged
 from .operation_paged import OperationPaged
 from .iot_central_client_enums import (
     AppSku,
-    AppNameUnavailabilityReason,
 )
 
 __all__ = [
@@ -41,13 +42,13 @@
     'App',
     'AppPatch',
     'Resource',
+    'ErrorResponseBody',
     'ErrorDetails', 'ErrorDetailsException',
     'OperationDisplay',
     'Operation',
     'OperationInputs',
-    'AppNameAvailabilityInfo',
+    'AppAvailabilityInfo',
     'AppPaged',
     'OperationPaged',
     'AppSku',
-    'AppNameUnavailabilityReason',
 ]
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_name_availability_info.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_availability_info.py
similarity index 68%
rename from azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_name_availability_info.py
rename to azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_availability_info.py
index 5121fecc7259..b690919a286d 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_name_availability_info.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_availability_info.py
@@ -12,9 +12,9 @@
 from msrest.serialization import Model
 
 
-class AppNameAvailabilityInfo(Model):
-    """The properties indicating whether a given IoT Central application name is
-    available.
+class AppAvailabilityInfo(Model):
+    """The properties indicating whether a given IoT Central application name or
+    subdomain is available.
 
     Variables are only populated by the server, and will be ignored when
     sending a request.
@@ -22,27 +22,26 @@ class AppNameAvailabilityInfo(Model):
     :ivar name_available: The value which indicates whether the provided name
      is available.
     :vartype name_available: bool
-    :ivar reason: The reason for unavailability. Possible values include:
-     'Invalid', 'AlreadyExists'
-    :vartype reason: str or
-     ~azure.mgmt.iotcentral.models.AppNameUnavailabilityReason
-    :param message: The detailed reason message.
-    :type message: str
+    :ivar reason: The reason for unavailability.
+    :vartype reason: str
+    :ivar message: The detailed reason message.
+    :vartype message: str
     """
 
     _validation = {
         'name_available': {'readonly': True},
         'reason': {'readonly': True},
+        'message': {'readonly': True},
     }
 
     _attribute_map = {
         'name_available': {'key': 'nameAvailable', 'type': 'bool'},
-        'reason': {'key': 'reason', 'type': 'AppNameUnavailabilityReason'},
+        'reason': {'key': 'reason', 'type': 'str'},
         'message': {'key': 'message', 'type': 'str'},
     }
 
     def __init__(self, **kwargs):
-        super(AppNameAvailabilityInfo, self).__init__(**kwargs)
+        super(AppAvailabilityInfo, self).__init__(**kwargs)
         self.name_available = None
         self.reason = None
-        self.message = kwargs.get('message', None)
+        self.message = None
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_name_availability_info_py3.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_availability_info_py3.py
similarity index 66%
rename from azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_name_availability_info_py3.py
rename to azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_availability_info_py3.py
index 7549acd0baee..64c94d994ad1 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_name_availability_info_py3.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/app_availability_info_py3.py
@@ -12,9 +12,9 @@
 from msrest.serialization import Model
 
 
-class AppNameAvailabilityInfo(Model):
-    """The properties indicating whether a given IoT Central application name is
-    available.
+class AppAvailabilityInfo(Model):
+    """The properties indicating whether a given IoT Central application name or
+    subdomain is available.
 
     Variables are only populated by the server, and will be ignored when
     sending a request.
@@ -22,27 +22,26 @@ class AppNameAvailabilityInfo(Model):
     :ivar name_available: The value which indicates whether the provided name
      is available.
     :vartype name_available: bool
-    :ivar reason: The reason for unavailability. Possible values include:
-     'Invalid', 'AlreadyExists'
-    :vartype reason: str or
-     ~azure.mgmt.iotcentral.models.AppNameUnavailabilityReason
-    :param message: The detailed reason message.
-    :type message: str
+    :ivar reason: The reason for unavailability.
+    :vartype reason: str
+    :ivar message: The detailed reason message.
+    :vartype message: str
     """
 
     _validation = {
         'name_available': {'readonly': True},
         'reason': {'readonly': True},
+        'message': {'readonly': True},
     }
 
     _attribute_map = {
         'name_available': {'key': 'nameAvailable', 'type': 'bool'},
-        'reason': {'key': 'reason', 'type': 'AppNameUnavailabilityReason'},
+        'reason': {'key': 'reason', 'type': 'str'},
         'message': {'key': 'message', 'type': 'str'},
     }
 
-    def __init__(self, *, message: str=None, **kwargs) -> None:
-        super(AppNameAvailabilityInfo, self).__init__(**kwargs)
+    def __init__(self, **kwargs) -> None:
+        super(AppAvailabilityInfo, self).__init__(**kwargs)
         self.name_available = None
         self.reason = None
-        self.message = message
+        self.message = None
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details.py
index a4886654fbff..b7f72f1b01b8 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details.py
@@ -25,6 +25,8 @@ class ErrorDetails(Model):
     :vartype message: str
     :ivar target: The target of the particular error.
     :vartype target: str
+    :param details: A list of additional details about the error.
+    :type details: list[~azure.mgmt.iotcentral.models.ErrorResponseBody]
     """
 
     _validation = {
@@ -34,9 +36,10 @@ class ErrorDetails(Model):
     }
 
     _attribute_map = {
-        'code': {'key': 'code', 'type': 'str'},
-        'message': {'key': 'message', 'type': 'str'},
-        'target': {'key': 'target', 'type': 'str'},
+        'code': {'key': 'error.code', 'type': 'str'},
+        'message': {'key': 'error.message', 'type': 'str'},
+        'target': {'key': 'error.target', 'type': 'str'},
+        'details': {'key': 'error.details', 'type': '[ErrorResponseBody]'},
     }
 
     def __init__(self, **kwargs):
@@ -44,6 +47,7 @@ def __init__(self, **kwargs):
         self.code = None
         self.message = None
         self.target = None
+        self.details = kwargs.get('details', None)
 
 
 class ErrorDetailsException(HttpOperationError):
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details_py3.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details_py3.py
index c219c199294e..fadfc552be75 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details_py3.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_details_py3.py
@@ -25,6 +25,8 @@ class ErrorDetails(Model):
     :vartype message: str
     :ivar target: The target of the particular error.
     :vartype target: str
+    :param details: A list of additional details about the error.
+    :type details: list[~azure.mgmt.iotcentral.models.ErrorResponseBody]
     """
 
     _validation = {
@@ -34,16 +36,18 @@ class ErrorDetails(Model):
     }
 
     _attribute_map = {
-        'code': {'key': 'code', 'type': 'str'},
-        'message': {'key': 'message', 'type': 'str'},
-        'target': {'key': 'target', 'type': 'str'},
+        'code': {'key': 'error.code', 'type': 'str'},
+        'message': {'key': 'error.message', 'type': 'str'},
+        'target': {'key': 'error.target', 'type': 'str'},
+        'details': {'key': 'error.details', 'type': '[ErrorResponseBody]'},
     }
 
-    def __init__(self, **kwargs) -> None:
+    def __init__(self, *, details=None, **kwargs) -> None:
         super(ErrorDetails, self).__init__(**kwargs)
         self.code = None
         self.message = None
         self.target = None
+        self.details = details
 
 
 class ErrorDetailsException(HttpOperationError):
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_response_body.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_response_body.py
new file mode 100644
index 000000000000..2eb41a34cfe7
--- /dev/null
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_response_body.py
@@ -0,0 +1,49 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for
+# license information.
+#
+# Code generated by Microsoft (R) AutoRest Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is
+# regenerated.
+# --------------------------------------------------------------------------
+
+from msrest.serialization import Model
+
+
+class ErrorResponseBody(Model):
+    """Details of error response.
+
+    Variables are only populated by the server, and will be ignored when
+    sending a request.
+
+    :ivar code: The error code.
+    :vartype code: str
+    :ivar message: The error message.
+    :vartype message: str
+    :ivar target: The target of the particular error.
+    :vartype target: str
+    :param details: A list of additional details about the error.
+    :type details: list[~azure.mgmt.iotcentral.models.ErrorResponseBody]
+    """
+
+    _validation = {
+        'code': {'readonly': True},
+        'message': {'readonly': True},
+        'target': {'readonly': True},
+    }
+
+    _attribute_map = {
+        'code': {'key': 'code', 'type': 'str'},
+        'message': {'key': 'message', 'type': 'str'},
+        'target': {'key': 'target', 'type': 'str'},
+        'details': {'key': 'details', 'type': '[ErrorResponseBody]'},
+    }
+
+    def __init__(self, **kwargs):
+        super(ErrorResponseBody, self).__init__(**kwargs)
+        self.code = None
+        self.message = None
+        self.target = None
+        self.details = kwargs.get('details', None)
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_response_body_py3.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_response_body_py3.py
new file mode 100644
index 000000000000..1e7115c11cb7
--- /dev/null
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/error_response_body_py3.py
@@ -0,0 +1,49 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for
+# license information.
+#
+# Code generated by Microsoft (R) AutoRest Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is
+# regenerated.
+# --------------------------------------------------------------------------
+
+from msrest.serialization import Model
+
+
+class ErrorResponseBody(Model):
+    """Details of error response.
+
+    Variables are only populated by the server, and will be ignored when
+    sending a request.
+
+    :ivar code: The error code.
+    :vartype code: str
+    :ivar message: The error message.
+    :vartype message: str
+    :ivar target: The target of the particular error.
+    :vartype target: str
+    :param details: A list of additional details about the error.
+    :type details: list[~azure.mgmt.iotcentral.models.ErrorResponseBody]
+    """
+
+    _validation = {
+        'code': {'readonly': True},
+        'message': {'readonly': True},
+        'target': {'readonly': True},
+    }
+
+    _attribute_map = {
+        'code': {'key': 'code', 'type': 'str'},
+        'message': {'key': 'message', 'type': 'str'},
+        'target': {'key': 'target', 'type': 'str'},
+        'details': {'key': 'details', 'type': '[ErrorResponseBody]'},
+    }
+
+    def __init__(self, *, details=None, **kwargs) -> None:
+        super(ErrorResponseBody, self).__init__(**kwargs)
+        self.code = None
+        self.message = None
+        self.target = None
+        self.details = details
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/iot_central_client_enums.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/iot_central_client_enums.py
index 91780df77e5f..8883b672464f 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/iot_central_client_enums.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/iot_central_client_enums.py
@@ -16,9 +16,3 @@ class AppSku(str, Enum):
 
     f1 = "F1"
     s1 = "S1"
-
-
-class AppNameUnavailabilityReason(str, Enum):
-
-    invalid = "Invalid"
-    already_exists = "AlreadyExists"
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs.py
index 71bb28eb8639..e04c6fb8a4ad 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs.py
@@ -20,16 +20,21 @@ class OperationInputs(Model):
     :param name: Required. The name of the IoT Central application instance to
      check.
     :type name: str
+    :param type: The type of the IoT Central resource to query. Default value:
+     "IoTApps" .
+    :type type: str
     """
 
     _validation = {
-        'name': {'required': True},
+        'name': {'required': True, 'pattern': r'^[a-z0-9-]{1,63}$'},
     }
 
     _attribute_map = {
         'name': {'key': 'name', 'type': 'str'},
+        'type': {'key': 'type', 'type': 'str'},
     }
 
     def __init__(self, **kwargs):
         super(OperationInputs, self).__init__(**kwargs)
         self.name = kwargs.get('name', None)
+        self.type = kwargs.get('type', "IoTApps")
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs_py3.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs_py3.py
index e99d4a561bc4..b5ac59194737 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs_py3.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/models/operation_inputs_py3.py
@@ -20,16 +20,21 @@ class OperationInputs(Model):
     :param name: Required. The name of the IoT Central application instance to
      check.
     :type name: str
+    :param type: The type of the IoT Central resource to query. Default value:
+     "IoTApps" .
+    :type type: str
     """
 
     _validation = {
-        'name': {'required': True},
+        'name': {'required': True, 'pattern': r'^[a-z0-9-]{1,63}$'},
     }
 
     _attribute_map = {
         'name': {'key': 'name', 'type': 'str'},
+        'type': {'key': 'type', 'type': 'str'},
     }
 
-    def __init__(self, *, name: str, **kwargs) -> None:
+    def __init__(self, *, name: str, type: str="IoTApps", **kwargs) -> None:
         super(OperationInputs, self).__init__(**kwargs)
         self.name = name
+        self.type = type
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/apps_operations.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/apps_operations.py
index 4f5632207bbe..72c8f74b58ad 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/apps_operations.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/apps_operations.py
@@ -74,7 +74,7 @@ def get(
 
         # Construct headers
         header_parameters = {}
-        header_parameters['Content-Type'] = 'application/json; charset=utf-8'
+        header_parameters['Accept'] = 'application/json'
         if self.config.generate_client_request_id:
             header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
         if custom_headers:
@@ -83,8 +83,8 @@ def get(
             header_parameters['accept-language'] = self._serialize.header("self.config.accept_language", self.config.accept_language, 'str')
 
         # Construct and send request
-        request = self._client.get(url, query_parameters)
-        response = self._client.send(request, header_parameters, stream=False, **operation_config)
+        request = self._client.get(url, query_parameters, header_parameters)
+        response = self._client.send(request, stream=False, **operation_config)
 
         if response.status_code not in [200]:
             raise models.ErrorDetailsException(self._deserialize, response)
@@ -119,6 +119,7 @@ def _create_or_update_initial(
 
         # Construct headers
         header_parameters = {}
+        header_parameters['Accept'] = 'application/json'
         header_parameters['Content-Type'] = 'application/json; charset=utf-8'
         if self.config.generate_client_request_id:
             header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
@@ -131,9 +132,8 @@ def _create_or_update_initial(
         body_content = self._serialize.body(app, 'App')
 
         # Construct and send request
-        request = self._client.put(url, query_parameters)
-        response = self._client.send(
-            request, header_parameters, body_content, stream=False, **operation_config)
+        request = self._client.put(url, query_parameters, header_parameters, body_content)
+        response = self._client.send(request, stream=False, **operation_config)
 
         if response.status_code not in [200, 201, 202]:
             raise models.ErrorDetailsException(self._deserialize, response)
@@ -226,6 +226,7 @@ def _update_initial(
 
         # Construct headers
         header_parameters = {}
+        header_parameters['Accept'] = 'application/json'
         header_parameters['Content-Type'] = 'application/json; charset=utf-8'
         if self.config.generate_client_request_id:
             header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
@@ -238,9 +239,8 @@ def _update_initial(
         body_content = self._serialize.body(app_patch, 'AppPatch')
 
         # Construct and send request
-        request = self._client.patch(url, query_parameters)
-        response = self._client.send(
-            request, header_parameters, body_content, stream=False, **operation_config)
+        request = self._client.patch(url, query_parameters, header_parameters, body_content)
+        response = self._client.send(request, stream=False, **operation_config)
 
         if response.status_code not in [200, 202]:
             raise models.ErrorDetailsException(self._deserialize, response)
@@ -328,7 +328,6 @@ def _delete_initial(
 
         # Construct headers
         header_parameters = {}
-        header_parameters['Content-Type'] = 'application/json; charset=utf-8'
         if self.config.generate_client_request_id:
             header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
         if custom_headers:
@@ -337,8 +336,8 @@ def _delete_initial(
             header_parameters['accept-language'] = self._serialize.header("self.config.accept_language", self.config.accept_language, 'str')
 
         # Construct and send request
-        request = self._client.delete(url, query_parameters)
-        response = self._client.send(request, header_parameters, stream=False, **operation_config)
+        request = self._client.delete(url, query_parameters, header_parameters)
+        response = self._client.send(request, stream=False, **operation_config)
 
         if response.status_code not in [200, 202, 204]:
             raise models.ErrorDetailsException(self._deserialize, response)
@@ -426,7 +425,7 @@ def internal_paging(next_link=None, raw=False):
 
             # Construct headers
             header_parameters = {}
-            header_parameters['Content-Type'] = 'application/json; charset=utf-8'
+            header_parameters['Accept'] = 'application/json'
             if self.config.generate_client_request_id:
                 header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
             if custom_headers:
@@ -435,9 +434,8 @@ def internal_paging(next_link=None, raw=False):
                 header_parameters['accept-language'] = self._serialize.header("self.config.accept_language", self.config.accept_language, 'str')
 
             # Construct and send request
-            request = self._client.get(url, query_parameters)
-            response = self._client.send(
-                request, header_parameters, stream=False, **operation_config)
+            request = self._client.get(url, query_parameters, header_parameters)
+            response = self._client.send(request, stream=False, **operation_config)
 
             if response.status_code not in [200]:
                 raise models.ErrorDetailsException(self._deserialize, response)
@@ -494,7 +492,7 @@ def internal_paging(next_link=None, raw=False):
 
             # Construct headers
             header_parameters = {}
-            header_parameters['Content-Type'] = 'application/json; charset=utf-8'
+            header_parameters['Accept'] = 'application/json'
             if self.config.generate_client_request_id:
                 header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
             if custom_headers:
@@ -503,9 +501,8 @@ def internal_paging(next_link=None, raw=False):
                 header_parameters['accept-language'] = self._serialize.header("self.config.accept_language", self.config.accept_language, 'str')
 
             # Construct and send request
-            request = self._client.get(url, query_parameters)
-            response = self._client.send(
-                request, header_parameters, stream=False, **operation_config)
+            request = self._client.get(url, query_parameters, header_parameters)
+            response = self._client.send(request, stream=False, **operation_config)
 
             if response.status_code not in [200]:
                 raise models.ErrorDetailsException(self._deserialize, response)
@@ -524,24 +521,26 @@ def internal_paging(next_link=None, raw=False):
     list_by_resource_group.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.IoTCentral/IoTApps'}
 
     def check_name_availability(
-            self, name, custom_headers=None, raw=False, **operation_config):
+            self, name, type="IoTApps", custom_headers=None, raw=False, **operation_config):
         """Check if an IoT Central application name is available.
 
         :param name: The name of the IoT Central application instance to
          check.
         :type name: str
+        :param type: The type of the IoT Central resource to query.
+        :type type: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
          deserialized response
         :param operation_config: :ref:`Operation configuration
          overrides<msrest:optionsforoperations>`.
-        :return: AppNameAvailabilityInfo or ClientRawResponse if raw=true
-        :rtype: ~azure.mgmt.iotcentral.models.AppNameAvailabilityInfo or
+        :return: AppAvailabilityInfo or ClientRawResponse if raw=true
+        :rtype: ~azure.mgmt.iotcentral.models.AppAvailabilityInfo or
          ~msrest.pipeline.ClientRawResponse
         :raises:
          :class:`ErrorDetailsException<azure.mgmt.iotcentral.models.ErrorDetailsException>`
         """
-        operation_inputs = models.OperationInputs(name=name)
+        operation_inputs = models.OperationInputs(name=name, type=type)
 
         # Construct URL
         url = self.check_name_availability.metadata['url']
@@ -556,6 +555,7 @@ def check_name_availability(
 
         # Construct headers
         header_parameters = {}
+        header_parameters['Accept'] = 'application/json'
         header_parameters['Content-Type'] = 'application/json; charset=utf-8'
         if self.config.generate_client_request_id:
             header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
@@ -568,9 +568,8 @@ def check_name_availability(
         body_content = self._serialize.body(operation_inputs, 'OperationInputs')
 
         # Construct and send request
-        request = self._client.post(url, query_parameters)
-        response = self._client.send(
-            request, header_parameters, body_content, stream=False, **operation_config)
+        request = self._client.post(url, query_parameters, header_parameters, body_content)
+        response = self._client.send(request, stream=False, **operation_config)
 
         if response.status_code not in [200]:
             raise models.ErrorDetailsException(self._deserialize, response)
@@ -578,7 +577,7 @@ def check_name_availability(
         deserialized = None
 
         if response.status_code == 200:
-            deserialized = self._deserialize('AppNameAvailabilityInfo', response)
+            deserialized = self._deserialize('AppAvailabilityInfo', response)
 
         if raw:
             client_raw_response = ClientRawResponse(deserialized, response)
@@ -586,3 +585,69 @@ def check_name_availability(
 
         return deserialized
     check_name_availability.metadata = {'url': '/subscriptions/{subscriptionId}/providers/Microsoft.IoTCentral/checkNameAvailability'}
+
+    def check_subdomain_availability(
+            self, name, type="IoTApps", custom_headers=None, raw=False, **operation_config):
+        """Check if an IoT Central application subdomain is available.
+
+        :param name: The name of the IoT Central application instance to
+         check.
+        :type name: str
+        :param type: The type of the IoT Central resource to query.
+        :type type: str
+        :param dict custom_headers: headers that will be added to the request
+        :param bool raw: returns the direct response alongside the
+         deserialized response
+        :param operation_config: :ref:`Operation configuration
+         overrides<msrest:optionsforoperations>`.
+        :return: AppAvailabilityInfo or ClientRawResponse if raw=true
+        :rtype: ~azure.mgmt.iotcentral.models.AppAvailabilityInfo or
+         ~msrest.pipeline.ClientRawResponse
+        :raises:
+         :class:`ErrorDetailsException<azure.mgmt.iotcentral.models.ErrorDetailsException>`
+        """
+        operation_inputs = models.OperationInputs(name=name, type=type)
+
+        # Construct URL
+        url = self.check_subdomain_availability.metadata['url']
+        path_format_arguments = {
+            'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
+        }
+        url = self._client.format_url(url, **path_format_arguments)
+
+        # Construct parameters
+        query_parameters = {}
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
+
+        # Construct headers
+        header_parameters = {}
+        header_parameters['Accept'] = 'application/json'
+        header_parameters['Content-Type'] = 'application/json; charset=utf-8'
+        if self.config.generate_client_request_id:
+            header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
+        if custom_headers:
+            header_parameters.update(custom_headers)
+        if self.config.accept_language is not None:
+            header_parameters['accept-language'] = self._serialize.header("self.config.accept_language", self.config.accept_language, 'str')
+
+        # Construct body
+        body_content = self._serialize.body(operation_inputs, 'OperationInputs')
+
+        # Construct and send request
+        request = self._client.post(url, query_parameters, header_parameters, body_content)
+        response = self._client.send(request, stream=False, **operation_config)
+
+        if response.status_code not in [200]:
+            raise models.ErrorDetailsException(self._deserialize, response)
+
+        deserialized = None
+
+        if response.status_code == 200:
+            deserialized = self._deserialize('AppAvailabilityInfo', response)
+
+        if raw:
+            client_raw_response = ClientRawResponse(deserialized, response)
+            return client_raw_response
+
+        return deserialized
+    check_subdomain_availability.metadata = {'url': '/subscriptions/{subscriptionId}/providers/Microsoft.IoTCentral/checkSubdomainAvailability'}
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/operations.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/operations.py
index 379a116eee82..27e672e4d79b 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/operations.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/operations/operations.py
@@ -67,7 +67,7 @@ def internal_paging(next_link=None, raw=False):
 
             # Construct headers
             header_parameters = {}
-            header_parameters['Content-Type'] = 'application/json; charset=utf-8'
+            header_parameters['Accept'] = 'application/json'
             if self.config.generate_client_request_id:
                 header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
             if custom_headers:
@@ -76,9 +76,8 @@ def internal_paging(next_link=None, raw=False):
                 header_parameters['accept-language'] = self._serialize.header("self.config.accept_language", self.config.accept_language, 'str')
 
             # Construct and send request
-            request = self._client.get(url, query_parameters)
-            response = self._client.send(
-                request, header_parameters, stream=False, **operation_config)
+            request = self._client.get(url, query_parameters, header_parameters)
+            response = self._client.send(request, stream=False, **operation_config)
 
             if response.status_code not in [200]:
                 raise models.ErrorDetailsException(self._deserialize, response)
diff --git a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/version.py b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/version.py
index c995f7836cef..a39916c162ce 100644
--- a/azure-mgmt-iotcentral/azure/mgmt/iotcentral/version.py
+++ b/azure-mgmt-iotcentral/azure/mgmt/iotcentral/version.py
@@ -9,4 +9,5 @@
 # regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "0.2.0"
+VERSION = "1.0.0"
+