diff --git a/lib/services/applicationinsights/lib/models/applicationInsightsComponentAvailableFeatures.js b/lib/services/applicationinsights/lib/models/applicationInsightsComponentAvailableFeatures.js
index 42b2c32ea3..3296f9927e 100644
--- a/lib/services/applicationinsights/lib/models/applicationInsightsComponentAvailableFeatures.js
+++ b/lib/services/applicationinsights/lib/models/applicationInsightsComponentAvailableFeatures.js
@@ -17,7 +17,7 @@
 class ApplicationInsightsComponentAvailableFeatures {
   /**
    * Create a ApplicationInsightsComponentAvailableFeatures.
-   * @member {array} [result] A list of Application Insigths component feature.
+   * @member {array} [result] A list of Application Insights component feature.
    */
   constructor() {
   }
diff --git a/lib/services/applicationinsights/lib/models/applicationInsightsComponentBillingFeatures.js b/lib/services/applicationinsights/lib/models/applicationInsightsComponentBillingFeatures.js
index 276983d914..425cacae60 100644
--- a/lib/services/applicationinsights/lib/models/applicationInsightsComponentBillingFeatures.js
+++ b/lib/services/applicationinsights/lib/models/applicationInsightsComponentBillingFeatures.js
@@ -18,7 +18,7 @@ class ApplicationInsightsComponentBillingFeatures {
   /**
    * Create a ApplicationInsightsComponentBillingFeatures.
    * @member {object} [dataVolumeCap] An Application Insights component daily
-   * data volumne cap
+   * data volume cap
    * @member {number} [dataVolumeCap.cap] Daily data volume cap in GB.
    * @member {number} [dataVolumeCap.resetTime] Daily data volume cap UTC reset
    * hour.
diff --git a/lib/services/applicationinsights/lib/models/applicationInsightsComponentDataVolumeCap.js b/lib/services/applicationinsights/lib/models/applicationInsightsComponentDataVolumeCap.js
index 1db1cce43e..726536de9f 100644
--- a/lib/services/applicationinsights/lib/models/applicationInsightsComponentDataVolumeCap.js
+++ b/lib/services/applicationinsights/lib/models/applicationInsightsComponentDataVolumeCap.js
@@ -11,7 +11,7 @@
 'use strict';
 
 /**
- * An Application Insights component daily data volumne cap
+ * An Application Insights component daily data volume cap
  *
  */
 class ApplicationInsightsComponentDataVolumeCap {
diff --git a/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeature.js b/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeature.js
index 936d2dc84e..74fefe2df1 100644
--- a/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeature.js
+++ b/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeature.js
@@ -19,13 +19,13 @@ class ApplicationInsightsComponentFeature {
    * Create a ApplicationInsightsComponentFeature.
    * @member {string} [featureName] The pricing feature name.
    * @member {string} [meterId] The meter id used for the feature.
-   * @member {string} [meterRateFrequency] The meter meter rate for the
-   * feature's meter.
+   * @member {string} [meterRateFrequency] The meter rate for the feature's
+   * meter.
    * @member {string} [resouceId] Reserved, not used now.
    * @member {boolean} [isHidden] Reserved, not used now.
-   * @member {array} [capabilities] A list of Application Insigths component
+   * @member {array} [capabilities] A list of Application Insights component
    * feature capability.
-   * @member {string} [title] Desplay name of the feature.
+   * @member {string} [title] Display name of the feature.
    * @member {boolean} [isMainFeature] Whether can apply addon feature on to
    * it.
    * @member {string} [supportedAddonFeatures] The add on features on main
diff --git a/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapabilities.js b/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapabilities.js
index ae93319d27..e9f03ea34a 100644
--- a/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapabilities.js
+++ b/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapabilities.js
@@ -32,7 +32,7 @@ class ApplicationInsightsComponentFeatureCapabilities {
    * @member {boolean} [multipleStepWebTest] Whether allow to use multiple
    * steps web test feature.
    * @member {string} [apiAccessLevel] Reserved, not used now.
-   * @member {string} [trackingType] The applciation insights component used
+   * @member {string} [trackingType] The application insights component used
    * tracking type.
    * @member {number} [dailyCap] Daily data volume cap in GB.
    * @member {number} [dailyCapResetTime] Daily data volume cap UTC reset hour.
diff --git a/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapability.js b/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapability.js
index 5499022ffb..9d44c9da7b 100644
--- a/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapability.js
+++ b/lib/services/applicationinsights/lib/models/applicationInsightsComponentFeatureCapability.js
@@ -19,7 +19,7 @@ class ApplicationInsightsComponentFeatureCapability {
    * Create a ApplicationInsightsComponentFeatureCapability.
    * @member {string} [name] The name of the capability.
    * @member {string} [description] The description of the capability.
-   * @member {string} [value] The vaule of the capability.
+   * @member {string} [value] The value of the capability.
    * @member {string} [unit] The unit of the capability.
    * @member {string} [meterId] The meter used for the capability.
    * @member {string} [meterRateFrequency] The meter rate of the meter.
diff --git a/lib/services/applicationinsights/lib/models/componentPurgeBodyFilters.js b/lib/services/applicationinsights/lib/models/componentPurgeBodyFilters.js
index d691a0b4ca..d8bc0b1987 100644
--- a/lib/services/applicationinsights/lib/models/componentPurgeBodyFilters.js
+++ b/lib/services/applicationinsights/lib/models/componentPurgeBodyFilters.js
@@ -24,6 +24,8 @@ class ComponentPurgeBodyFilters {
    * @member {object} [value] the value for the operator to function over. This
    * can be a number (e.g., > 100), a string (timestamp >= '2017-09-01') or
    * array of values.
+   * @member {string} [key] When filtering over custom dimensions, this key
+   * will be used as the name of the custom dimension.
    */
   constructor() {
   }
@@ -62,6 +64,13 @@ class ComponentPurgeBodyFilters {
             type: {
               name: 'Object'
             }
+          },
+          key: {
+            required: false,
+            serializedName: 'key',
+            type: {
+              name: 'String'
+            }
           }
         }
       }
diff --git a/lib/services/applicationinsights/lib/models/index.d.ts b/lib/services/applicationinsights/lib/models/index.d.ts
index 2e33a87dc4..261fc04c01 100644
--- a/lib/services/applicationinsights/lib/models/index.d.ts
+++ b/lib/services/applicationinsights/lib/models/index.d.ts
@@ -279,7 +279,7 @@ export interface ApplicationInsightsComponentExportConfiguration {
  * @class
  * Initializes a new instance of the ApplicationInsightsComponentDataVolumeCap class.
  * @constructor
- * An Application Insights component daily data volumne cap
+ * An Application Insights component daily data volume cap
  *
  * @member {number} [cap] Daily data volume cap in GB.
  * @member {number} [resetTime] Daily data volume cap UTC reset hour.
@@ -307,7 +307,7 @@ export interface ApplicationInsightsComponentDataVolumeCap {
  * An Application Insights component billing features
  *
  * @member {object} [dataVolumeCap] An Application Insights component daily
- * data volumne cap
+ * data volume cap
  * @member {number} [dataVolumeCap.cap] Daily data volume cap in GB.
  * @member {number} [dataVolumeCap.resetTime] Daily data volume cap UTC reset
  * hour.
@@ -368,7 +368,7 @@ export interface ApplicationInsightsComponentQuotaStatus {
  * @member {boolean} [multipleStepWebTest] Whether allow to use multiple steps
  * web test feature.
  * @member {string} [apiAccessLevel] Reserved, not used now.
- * @member {string} [trackingType] The applciation insights component used
+ * @member {string} [trackingType] The application insights component used
  * tracking type.
  * @member {number} [dailyCap] Daily data volume cap in GB.
  * @member {number} [dailyCapResetTime] Daily data volume cap UTC reset hour.
@@ -401,7 +401,7 @@ export interface ApplicationInsightsComponentFeatureCapabilities {
  *
  * @member {string} [name] The name of the capability.
  * @member {string} [description] The description of the capability.
- * @member {string} [value] The vaule of the capability.
+ * @member {string} [value] The value of the capability.
  * @member {string} [unit] The unit of the capability.
  * @member {string} [meterId] The meter used for the capability.
  * @member {string} [meterRateFrequency] The meter rate of the meter.
@@ -423,13 +423,13 @@ export interface ApplicationInsightsComponentFeatureCapability {
  *
  * @member {string} [featureName] The pricing feature name.
  * @member {string} [meterId] The meter id used for the feature.
- * @member {string} [meterRateFrequency] The meter meter rate for the feature's
+ * @member {string} [meterRateFrequency] The meter rate for the feature's
  * meter.
  * @member {string} [resouceId] Reserved, not used now.
  * @member {boolean} [isHidden] Reserved, not used now.
- * @member {array} [capabilities] A list of Application Insigths component
+ * @member {array} [capabilities] A list of Application Insights component
  * feature capability.
- * @member {string} [title] Desplay name of the feature.
+ * @member {string} [title] Display name of the feature.
  * @member {boolean} [isMainFeature] Whether can apply addon feature on to it.
  * @member {string} [supportedAddonFeatures] The add on features on main
  * feature.
@@ -452,7 +452,7 @@ export interface ApplicationInsightsComponentFeature {
  * @constructor
  * An Application Insights component available features.
  *
- * @member {array} [result] A list of Application Insigths component feature.
+ * @member {array} [result] A list of Application Insights component feature.
  */
 export interface ApplicationInsightsComponentAvailableFeatures {
   readonly result?: ApplicationInsightsComponentFeature[];
@@ -634,11 +634,14 @@ export interface ApplicationInsightsComponent extends ComponentsResource {
  * @member {object} [value] the value for the operator to function over. This
  * can be a number (e.g., > 100), a string (timestamp >= '2017-09-01') or array
  * of values.
+ * @member {string} [key] When filtering over custom dimensions, this key will
+ * be used as the name of the custom dimension.
  */
 export interface ComponentPurgeBodyFilters {
   column?: string;
   operator?: string;
   value?: any;
+  key?: string;
 }
 
 /**
diff --git a/lib/services/applicationinsights/lib/operations/componentCurrentBillingFeatures.js b/lib/services/applicationinsights/lib/operations/componentCurrentBillingFeatures.js
index 3a51f84308..660ee65453 100644
--- a/lib/services/applicationinsights/lib/operations/componentCurrentBillingFeatures.js
+++ b/lib/services/applicationinsights/lib/operations/componentCurrentBillingFeatures.js
@@ -173,7 +173,7 @@ function _get(resourceGroupName, resourceName, options, callback) {
  * specified to update billing features for an Application Insights component.
  *
  * @param {object} [billingFeaturesProperties.dataVolumeCap] An Application
- * Insights component daily data volumne cap
+ * Insights component daily data volume cap
  *
  * @param {number} [billingFeaturesProperties.dataVolumeCap.cap] Daily data
  * volume cap in GB.
@@ -462,7 +462,7 @@ class ComponentCurrentBillingFeatures {
    * specified to update billing features for an Application Insights component.
    *
    * @param {object} [billingFeaturesProperties.dataVolumeCap] An Application
-   * Insights component daily data volumne cap
+   * Insights component daily data volume cap
    *
    * @param {number} [billingFeaturesProperties.dataVolumeCap.cap] Daily data
    * volume cap in GB.
@@ -519,7 +519,7 @@ class ComponentCurrentBillingFeatures {
    * specified to update billing features for an Application Insights component.
    *
    * @param {object} [billingFeaturesProperties.dataVolumeCap] An Application
-   * Insights component daily data volumne cap
+   * Insights component daily data volume cap
    *
    * @param {number} [billingFeaturesProperties.dataVolumeCap.cap] Daily data
    * volume cap in GB.
diff --git a/lib/services/applicationinsights/lib/operations/componentFeatureCapabilities.js b/lib/services/applicationinsights/lib/operations/componentFeatureCapabilities.js
index 2b3873b153..03edb1050b 100644
--- a/lib/services/applicationinsights/lib/operations/componentFeatureCapabilities.js
+++ b/lib/services/applicationinsights/lib/operations/componentFeatureCapabilities.js
@@ -15,7 +15,7 @@ const msRestAzure = require('ms-rest-azure');
 const WebResource = msRest.WebResource;
 
 /**
- * Returns feature capabilites of the application insights component.
+ * Returns feature capabilities of the application insights component.
  *
  * @param {string} resourceGroupName The name of the resource group.
  *
@@ -174,7 +174,7 @@ class ComponentFeatureCapabilities {
   }
 
   /**
-   * Returns feature capabilites of the application insights component.
+   * Returns feature capabilities of the application insights component.
    *
    * @param {string} resourceGroupName The name of the resource group.
    *
@@ -207,7 +207,7 @@ class ComponentFeatureCapabilities {
   }
 
   /**
-   * Returns feature capabilites of the application insights component.
+   * Returns feature capabilities of the application insights component.
    *
    * @param {string} resourceGroupName The name of the resource group.
    *
diff --git a/lib/services/applicationinsights/lib/operations/index.d.ts b/lib/services/applicationinsights/lib/operations/index.d.ts
index c8e8333e40..1dd3cd4884 100644
--- a/lib/services/applicationinsights/lib/operations/index.d.ts
+++ b/lib/services/applicationinsights/lib/operations/index.d.ts
@@ -1276,7 +1276,7 @@ export interface ComponentCurrentBillingFeatures {
      * specified to update billing features for an Application Insights component.
      *
      * @param {object} [billingFeaturesProperties.dataVolumeCap] An Application
-     * Insights component daily data volumne cap
+     * Insights component daily data volume cap
      *
      * @param {number} [billingFeaturesProperties.dataVolumeCap.cap] Daily data
      * volume cap in GB.
@@ -1321,7 +1321,7 @@ export interface ComponentCurrentBillingFeatures {
      * specified to update billing features for an Application Insights component.
      *
      * @param {object} [billingFeaturesProperties.dataVolumeCap] An Application
-     * Insights component daily data volumne cap
+     * Insights component daily data volume cap
      *
      * @param {number} [billingFeaturesProperties.dataVolumeCap.cap] Daily data
      * volume cap in GB.
@@ -1457,7 +1457,7 @@ export interface ComponentFeatureCapabilities {
 
 
     /**
-     * Returns feature capabilites of the application insights component.
+     * Returns feature capabilities of the application insights component.
      *
      * @param {string} resourceGroupName The name of the resource group.
      *
@@ -1478,7 +1478,7 @@ export interface ComponentFeatureCapabilities {
     getWithHttpOperationResponse(resourceGroupName: string, resourceName: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<HttpOperationResponse<models.ApplicationInsightsComponentFeatureCapabilities>>;
 
     /**
-     * Returns feature capabilites of the application insights component.
+     * Returns feature capabilities of the application insights component.
      *
      * @param {string} resourceGroupName The name of the resource group.
      *