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..55a0ccce7828 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)
@@ -556,6 +553,7 @@ 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 +566,8 @@ 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)
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..c9a9b899085f 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 = "2018-09-01"
+