diff --git a/sdk/appplatform/arm-appplatform/package.json b/sdk/appplatform/arm-appplatform/package.json
index 5858db62b3c0..7d88def0ce81 100644
--- a/sdk/appplatform/arm-appplatform/package.json
+++ b/sdk/appplatform/arm-appplatform/package.json
@@ -27,7 +27,7 @@
     "rollup-plugin-sourcemaps": "^0.4.2",
     "uglify-js": "^3.6.0"
   },
-  "homepage": "https://github.com/Azure/azure-sdk-for-js/tree/feature/v4/sdk/appplatform/arm-appplatform",
+  "homepage": "https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/appplatform/arm-appplatform",
   "repository": {
     "type": "git",
     "url": "https://github.com/Azure/azure-sdk-for-js.git"
diff --git a/sdk/appplatform/arm-appplatform/src/models/index.ts b/sdk/appplatform/arm-appplatform/src/models/index.ts
index 542f5caec2d9..73bbb8648a3d 100644
--- a/sdk/appplatform/arm-appplatform/src/models/index.ts
+++ b/sdk/appplatform/arm-appplatform/src/models/index.ts
@@ -491,7 +491,7 @@ export interface TemporaryDisk {
    */
   sizeInGB?: number;
   /**
-   * Mount path of the temporary disk
+   * Mount path of the temporary disk. Default value: '/tmp'.
    */
   mountPath?: string;
 }
@@ -543,7 +543,7 @@ export interface AppResourceProperties {
    */
   fqdn?: string;
   /**
-   * Indicate if only https is allowed.
+   * Indicate if only https is allowed. Default value: false.
    */
   httpsOnly?: boolean;
   /**
@@ -560,7 +560,7 @@ export interface AppResourceProperties {
    */
   persistentDisk?: PersistentDisk;
   /**
-   * Indicate if end to end TLS is enabled.
+   * Indicate if end to end TLS is enabled. Default value: false.
    */
   enableEndToEndTLS?: boolean;
 }
@@ -920,7 +920,8 @@ export interface DeploymentSettings {
    */
   environmentVariables?: { [propertyName: string]: string };
   /**
-   * Runtime version. Possible values include: 'Java_8', 'Java_11', 'NetCore_31'
+   * Runtime version. Possible values include: 'Java_8', 'Java_11', 'NetCore_31'. Default value:
+   * 'Java_8'.
    */
   runtimeVersion?: RuntimeVersion;
 }
@@ -1130,6 +1131,10 @@ export interface MetricSpecification {
    * Dimensions of the metric
    */
   dimensions?: MetricDimension[];
+  /**
+   * Name of the MDM namespace. Optional.
+   */
+  sourceMdmNamespace?: string;
 }
 
 /**
diff --git a/sdk/appplatform/arm-appplatform/src/models/mappers.ts b/sdk/appplatform/arm-appplatform/src/models/mappers.ts
index c80ead76b135..8efda43170b1 100644
--- a/sdk/appplatform/arm-appplatform/src/models/mappers.ts
+++ b/sdk/appplatform/arm-appplatform/src/models/mappers.ts
@@ -823,6 +823,7 @@ export const TemporaryDisk: msRest.CompositeMapper = {
       },
       mountPath: {
         serializedName: "mountPath",
+        defaultValue: '/tmp',
         type: {
           name: "String"
         }
@@ -908,6 +909,7 @@ export const AppResourceProperties: msRest.CompositeMapper = {
       },
       httpsOnly: {
         serializedName: "httpsOnly",
+        defaultValue: false,
         type: {
           name: "Boolean"
         }
@@ -935,6 +937,7 @@ export const AppResourceProperties: msRest.CompositeMapper = {
       },
       enableEndToEndTLS: {
         serializedName: "enableEndToEndTLS",
+        defaultValue: false,
         type: {
           name: "Boolean"
         }
@@ -1510,6 +1513,7 @@ export const DeploymentSettings: msRest.CompositeMapper = {
       },
       runtimeVersion: {
         serializedName: "runtimeVersion",
+        defaultValue: 'Java_8',
         type: {
           name: "String"
         }
@@ -1848,6 +1852,12 @@ export const MetricSpecification: msRest.CompositeMapper = {
             }
           }
         }
+      },
+      sourceMdmNamespace: {
+        serializedName: "sourceMdmNamespace",
+        type: {
+          name: "String"
+        }
       }
     }
   }