diff --git a/sdk/iothub/arm-iothub/README.md b/sdk/iothub/arm-iothub/README.md
index e0119d94d701..2b1111bb8182 100644
--- a/sdk/iothub/arm-iothub/README.md
+++ b/sdk/iothub/arm-iothub/README.md
@@ -19,8 +19,9 @@ npm install @azure/arm-iothub
 
 ##### Install @azure/ms-rest-nodeauth
 
+- Please install minimum version of `"@azure/ms-rest-nodeauth": "^3.0.0"`.
 ```bash
-npm install @azure/ms-rest-nodeauth
+npm install @azure/ms-rest-nodeauth@"^3.0.0"
 ```
 
 ##### Sample code
@@ -94,3 +95,5 @@ See https://github.com/Azure/ms-rest-browserauth to learn how to authenticate to
 ## Related projects
 
 - [Microsoft Azure SDK for Javascript](https://github.com/Azure/azure-sdk-for-js)
+
+![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-js/sdk/iothub/arm-iothub/README.png)
diff --git a/sdk/iothub/arm-iothub/package.json b/sdk/iothub/arm-iothub/package.json
index e3e5e78fe65f..24c367861684 100644
--- a/sdk/iothub/arm-iothub/package.json
+++ b/sdk/iothub/arm-iothub/package.json
@@ -4,9 +4,9 @@
   "description": "IotHubClient Library with typescript type definitions for node.js and browser.",
   "version": "3.0.0",
   "dependencies": {
-    "@azure/ms-rest-azure-js": "^1.3.2",
-    "@azure/ms-rest-js": "^1.8.1",
-    "tslib": "^1.9.3"
+    "@azure/ms-rest-azure-js": "^2.0.1",
+    "@azure/ms-rest-js": "^2.0.4",
+    "tslib": "^1.10.0"
   },
   "keywords": [
     "node",
@@ -20,19 +20,19 @@
   "module": "./esm/iotHubClient.js",
   "types": "./esm/iotHubClient.d.ts",
   "devDependencies": {
-    "typescript": "^3.1.1",
-    "rollup": "^0.66.2",
-    "rollup-plugin-node-resolve": "^3.4.0",
+    "typescript": "^3.5.3",
+    "rollup": "^1.18.0",
+    "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-sourcemaps": "^0.4.2",
-    "uglify-js": "^3.4.9"
+    "uglify-js": "^3.6.0"
   },
-  "homepage": "https://github.com/azure/azure-sdk-for-js",
+  "homepage": "https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/iothub/arm-iothub",
   "repository": {
     "type": "git",
-    "url": "https://github.com/azure/azure-sdk-for-js.git"
+    "url": "https://github.com/Azure/azure-sdk-for-js.git"
   },
   "bugs": {
-    "url": "https://github.com/azure/azure-sdk-for-js/issues"
+    "url": "https://github.com/Azure/azure-sdk-for-js/issues"
   },
   "files": [
     "dist/**/*.js",
diff --git a/sdk/iothub/arm-iothub/rollup.config.js b/sdk/iothub/arm-iothub/rollup.config.js
index 8464171f6338..c38caace5654 100644
--- a/sdk/iothub/arm-iothub/rollup.config.js
+++ b/sdk/iothub/arm-iothub/rollup.config.js
@@ -29,7 +29,7 @@ const config = {
  */`
   },
   plugins: [
-    nodeResolve({ module: true }),
+    nodeResolve({ mainFields: ['module', 'main'] }),
     sourcemaps()
   ]
 };
diff --git a/sdk/iothub/arm-iothub/src/iotHubClientContext.ts b/sdk/iothub/arm-iothub/src/iotHubClientContext.ts
index a7ed3e93f0b7..81ff345fe634 100644
--- a/sdk/iothub/arm-iothub/src/iotHubClientContext.ts
+++ b/sdk/iothub/arm-iothub/src/iotHubClientContext.ts
@@ -44,7 +44,7 @@ export class IotHubClientContext extends msRestAzure.AzureServiceClient {
 
     super(credentials, options);
 
-    this.apiVersion = '2019-03-22-preview';
+    this.apiVersion = '2019-07-01-preview';
     this.acceptLanguage = 'en-US';
     this.longRunningOperationRetryTimeout = 30;
     this.baseUri = options.baseUri || this.baseUri || "https://management.azure.com";
diff --git a/sdk/iothub/arm-iothub/src/models/certificatesMappers.ts b/sdk/iothub/arm-iothub/src/models/certificatesMappers.ts
index 1be3b19c89d5..c971b904ae91 100644
--- a/sdk/iothub/arm-iothub/src/models/certificatesMappers.ts
+++ b/sdk/iothub/arm-iothub/src/models/certificatesMappers.ts
@@ -23,6 +23,7 @@ export {
   FallbackRouteProperties,
   FeedbackProperties,
   IotHubDescription,
+  IotHubLocationDescription,
   IotHubProperties,
   IotHubPropertiesDeviceStreams,
   IotHubSkuInfo,
diff --git a/sdk/iothub/arm-iothub/src/models/index.ts b/sdk/iothub/arm-iothub/src/models/index.ts
index d6d48dd3b916..216146be9017 100644
--- a/sdk/iothub/arm-iothub/src/models/index.ts
+++ b/sdk/iothub/arm-iothub/src/models/index.ts
@@ -427,7 +427,7 @@ export interface RouteProperties {
   /**
    * The source that the routing rule is to be applied to, such as DeviceMessages. Possible values
    * include: 'Invalid', 'DeviceMessages', 'TwinChangeEvents', 'DeviceLifecycleEvents',
-   * 'DeviceJobLifecycleEvents'
+   * 'DeviceJobLifecycleEvents', 'DigitalTwinChangeEvents'
    */
   source: RoutingSource;
   /**
@@ -607,6 +607,20 @@ export interface IotHubPropertiesDeviceStreams {
   streamingEndpoints?: string[];
 }
 
+/**
+ * Public representation of one of the locations where a resource is provisioned.
+ */
+export interface IotHubLocationDescription {
+  /**
+   * Azure Geo Regions
+   */
+  location?: string;
+  /**
+   * Specific Role assigned to this location. Possible values include: 'primary', 'secondary'
+   */
+  role?: IotHubReplicaRoleType;
+}
+
 /**
  * The properties of an IoT hub.
  */
@@ -670,6 +684,11 @@ export interface IotHubProperties {
    * 'DeviceManagement'
    */
   features?: Capabilities;
+  /**
+   * Primary and secondary location for iot hub
+   * **NOTE: This property will not be serialized. It can only be populated by the server.**
+   */
+  readonly locations?: IotHubLocationDescription[];
 }
 
 /**
@@ -1141,7 +1160,7 @@ export interface RoutingTwin {
 export interface TestAllRoutesInput {
   /**
    * Routing source. Possible values include: 'Invalid', 'DeviceMessages', 'TwinChangeEvents',
-   * 'DeviceLifecycleEvents', 'DeviceJobLifecycleEvents'
+   * 'DeviceLifecycleEvents', 'DeviceJobLifecycleEvents', 'DigitalTwinChangeEvents'
    */
   routingSource?: RoutingSource;
   /**
@@ -1503,11 +1522,11 @@ export type IpFilterActionType = 'Accept' | 'Reject';
 /**
  * Defines values for RoutingSource.
  * Possible values include: 'Invalid', 'DeviceMessages', 'TwinChangeEvents',
- * 'DeviceLifecycleEvents', 'DeviceJobLifecycleEvents'
+ * 'DeviceLifecycleEvents', 'DeviceJobLifecycleEvents', 'DigitalTwinChangeEvents'
  * @readonly
  * @enum {string}
  */
-export type RoutingSource = 'Invalid' | 'DeviceMessages' | 'TwinChangeEvents' | 'DeviceLifecycleEvents' | 'DeviceJobLifecycleEvents';
+export type RoutingSource = 'Invalid' | 'DeviceMessages' | 'TwinChangeEvents' | 'DeviceLifecycleEvents' | 'DeviceJobLifecycleEvents' | 'DigitalTwinChangeEvents';
 
 /**
  * Defines values for Capabilities.
@@ -1517,6 +1536,14 @@ export type RoutingSource = 'Invalid' | 'DeviceMessages' | 'TwinChangeEvents' |
  */
 export type Capabilities = 'None' | 'DeviceManagement';
 
+/**
+ * Defines values for IotHubReplicaRoleType.
+ * Possible values include: 'primary', 'secondary'
+ * @readonly
+ * @enum {string}
+ */
+export type IotHubReplicaRoleType = 'primary' | 'secondary';
+
 /**
  * Defines values for IotHubSku.
  * Possible values include: 'F1', 'S1', 'S2', 'S3', 'B1', 'B2', 'B3'
diff --git a/sdk/iothub/arm-iothub/src/models/iotHubResourceMappers.ts b/sdk/iothub/arm-iothub/src/models/iotHubResourceMappers.ts
index ab4c4252953b..235c2d3e08cc 100644
--- a/sdk/iothub/arm-iothub/src/models/iotHubResourceMappers.ts
+++ b/sdk/iothub/arm-iothub/src/models/iotHubResourceMappers.ts
@@ -28,6 +28,7 @@ export {
   IotHubCapacity,
   IotHubDescription,
   IotHubDescriptionListResult,
+  IotHubLocationDescription,
   IotHubNameAvailabilityInfo,
   IotHubProperties,
   IotHubPropertiesDeviceStreams,
diff --git a/sdk/iothub/arm-iothub/src/models/mappers.ts b/sdk/iothub/arm-iothub/src/models/mappers.ts
index 89d81a23b79e..dab1f893cd88 100644
--- a/sdk/iothub/arm-iothub/src/models/mappers.ts
+++ b/sdk/iothub/arm-iothub/src/models/mappers.ts
@@ -1014,6 +1014,28 @@ export const IotHubPropertiesDeviceStreams: msRest.CompositeMapper = {
   }
 };
 
+export const IotHubLocationDescription: msRest.CompositeMapper = {
+  serializedName: "IotHubLocationDescription",
+  type: {
+    name: "Composite",
+    className: "IotHubLocationDescription",
+    modelProperties: {
+      location: {
+        serializedName: "location",
+        type: {
+          name: "String"
+        }
+      },
+      role: {
+        serializedName: "role",
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
 export const IotHubProperties: msRest.CompositeMapper = {
   serializedName: "IotHubProperties",
   type: {
@@ -1139,6 +1161,19 @@ export const IotHubProperties: msRest.CompositeMapper = {
         type: {
           name: "String"
         }
+      },
+      locations: {
+        readOnly: true,
+        serializedName: "locations",
+        type: {
+          name: "Sequence",
+          element: {
+            type: {
+              name: "Composite",
+              className: "IotHubLocationDescription"
+            }
+          }
+        }
       }
     }
   }
diff --git a/sdk/iothub/arm-iothub/tsconfig.json b/sdk/iothub/arm-iothub/tsconfig.json
index 87bbf5b5fa49..422b584abd5e 100644
--- a/sdk/iothub/arm-iothub/tsconfig.json
+++ b/sdk/iothub/arm-iothub/tsconfig.json
@@ -9,7 +9,7 @@
     "esModuleInterop": true,
     "allowSyntheticDefaultImports": true,
     "forceConsistentCasingInFileNames": true,
-    "lib": ["es6"],
+    "lib": ["es6", "dom"],
     "declaration": true,
     "outDir": "./esm",
     "importHelpers": true