diff --git a/lib/services/containerservicesManagement/lib/models/containerServiceDiagnosticsProfile.js b/lib/services/containerservicesManagement/lib/models/containerServiceDiagnosticsProfile.js
index 1ca0c5fa2d..2ba40526cb 100644
--- a/lib/services/containerservicesManagement/lib/models/containerServiceDiagnosticsProfile.js
+++ b/lib/services/containerservicesManagement/lib/models/containerServiceDiagnosticsProfile.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * Profile for diagnostics on the container service cluster.
  *
diff --git a/lib/services/containerservicesManagement/lib/models/containerServiceLinuxProfile.js b/lib/services/containerservicesManagement/lib/models/containerServiceLinuxProfile.js
index 6cf2c02866..ccd6312a79 100644
--- a/lib/services/containerservicesManagement/lib/models/containerServiceLinuxProfile.js
+++ b/lib/services/containerservicesManagement/lib/models/containerServiceLinuxProfile.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * Profile for Linux VMs in the container service cluster.
  *
@@ -47,7 +45,7 @@ class ContainerServiceLinuxProfile {
             required: true,
             serializedName: 'adminUsername',
             constraints: {
-              Pattern: '^[a-z][a-z0-9_-]*$'
+              Pattern: '^[A-Za-z][-A-Za-z0-9_]*$'
             },
             type: {
               name: 'String'
diff --git a/lib/services/containerservicesManagement/lib/models/containerServiceServicePrincipalProfile.js b/lib/services/containerservicesManagement/lib/models/containerServiceServicePrincipalProfile.js
index 7823f2a0dd..462806938f 100644
--- a/lib/services/containerservicesManagement/lib/models/containerServiceServicePrincipalProfile.js
+++ b/lib/services/containerservicesManagement/lib/models/containerServiceServicePrincipalProfile.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * Information about a service principal identity for the cluster to use for
  * manipulating Azure APIs. Either secret or keyVaultSecretRef must be
diff --git a/lib/services/containerservicesManagement/lib/models/containerServiceSshConfiguration.js b/lib/services/containerservicesManagement/lib/models/containerServiceSshConfiguration.js
index a77522abe0..51cd3fdead 100644
--- a/lib/services/containerservicesManagement/lib/models/containerServiceSshConfiguration.js
+++ b/lib/services/containerservicesManagement/lib/models/containerServiceSshConfiguration.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * SSH configuration for Linux-based VMs running on Azure.
  *
diff --git a/lib/services/containerservicesManagement/lib/models/credentialResult.js b/lib/services/containerservicesManagement/lib/models/credentialResult.js
index 7cf3ea6d39..a90d468852 100644
--- a/lib/services/containerservicesManagement/lib/models/credentialResult.js
+++ b/lib/services/containerservicesManagement/lib/models/credentialResult.js
@@ -18,7 +18,7 @@ class CredentialResult {
   /**
    * Create a CredentialResult.
    * @member {string} [name] The name of the credential.
-   * @member {string} [value] The value of the credential.
+   * @member {buffer} [value] Base64-encoded Kubernetes configuration file.
    */
   constructor() {
   }
@@ -50,7 +50,7 @@ class CredentialResult {
             readOnly: true,
             serializedName: 'value',
             type: {
-              name: 'String'
+              name: 'ByteArray'
             }
           }
         }
diff --git a/lib/services/containerservicesManagement/lib/models/credentialResults.js b/lib/services/containerservicesManagement/lib/models/credentialResults.js
index 7fa8fb898a..c6c3842e35 100644
--- a/lib/services/containerservicesManagement/lib/models/credentialResults.js
+++ b/lib/services/containerservicesManagement/lib/models/credentialResults.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * The list of credential result response.
  *
@@ -19,7 +17,7 @@ const models = require('./index');
 class CredentialResults {
   /**
    * Create a CredentialResults.
-   * @member {array} [values]
+   * @member {array} [kubeconfigs]
    */
   constructor() {
   }
@@ -38,10 +36,10 @@ class CredentialResults {
         name: 'Composite',
         className: 'CredentialResults',
         modelProperties: {
-          values: {
+          kubeconfigs: {
             required: false,
             readOnly: true,
-            serializedName: 'values',
+            serializedName: 'kubeconfigs',
             type: {
               name: 'Sequence',
               element: {
diff --git a/lib/services/containerservicesManagement/lib/models/index.d.ts b/lib/services/containerservicesManagement/lib/models/index.d.ts
index 5bf6482eb8..57c6766bc1 100644
--- a/lib/services/containerservicesManagement/lib/models/index.d.ts
+++ b/lib/services/containerservicesManagement/lib/models/index.d.ts
@@ -878,11 +878,11 @@ export interface ManagedClusterUpgradeProfile {
  * The credential result response.
  *
  * @member {string} [name] The name of the credential.
- * @member {string} [value] The value of the credential.
+ * @member {buffer} [value] Base64-encoded Kubernetes configuration file.
  */
 export interface CredentialResult {
   readonly name?: string;
-  readonly value?: string;
+  readonly value?: Buffer;
 }
 
 /**
@@ -891,10 +891,10 @@ export interface CredentialResult {
  * @constructor
  * The list of credential result response.
  *
- * @member {array} [values]
+ * @member {array} [kubeconfigs]
  */
 export interface CredentialResults {
-  readonly values?: CredentialResult[];
+  readonly kubeconfigs?: CredentialResult[];
 }
 
 /**
diff --git a/lib/services/containerservicesManagement/lib/models/managedClusterUpgradeProfile.js b/lib/services/containerservicesManagement/lib/models/managedClusterUpgradeProfile.js
index ddb99f2a26..633dcbc3a2 100644
--- a/lib/services/containerservicesManagement/lib/models/managedClusterUpgradeProfile.js
+++ b/lib/services/containerservicesManagement/lib/models/managedClusterUpgradeProfile.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * The list of available upgrades for compute pools.
  *
diff --git a/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfile.js b/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfile.js
index c72c478b43..a27be1de00 100644
--- a/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfile.js
+++ b/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfile.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * The profile of an orchestrator and its available versions.
  *
diff --git a/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfileListResult.js b/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfileListResult.js
index 4ce959deba..0aa579ef28 100644
--- a/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfileListResult.js
+++ b/lib/services/containerservicesManagement/lib/models/orchestratorVersionProfileListResult.js
@@ -10,8 +10,6 @@
 
 'use strict';
 
-const models = require('./index');
-
 /**
  * The list of versions for supported orchestrators.
  *
diff --git a/lib/services/containerservicesManagement/package-lock.json b/lib/services/containerservicesManagement/package-lock.json
index fedc80d1b7..a27da3ac88 100644
--- a/lib/services/containerservicesManagement/package-lock.json
+++ b/lib/services/containerservicesManagement/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "azure-arm-containerservice",
-  "version": "4.0.0",
+  "version": "5.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/lib/services/containerservicesManagement/package.json b/lib/services/containerservicesManagement/package.json
index c9c96191e8..2833989116 100644
--- a/lib/services/containerservicesManagement/package.json
+++ b/lib/services/containerservicesManagement/package.json
@@ -2,7 +2,7 @@
   "name": "azure-arm-containerservice",
   "author": "Microsoft Corporation",
   "description": "ContainerServiceClient Library with typescript type definitions for node",
-  "version": "4.0.0",
+  "version": "5.0.0",
   "dependencies": {
     "ms-rest": "^2.3.3",
     "ms-rest-azure": "^2.5.5"
@@ -14,7 +14,7 @@
   "license": "MIT",
   "main": "./lib/containerServiceClient.js",
   "types": "./lib/containerServiceClient.d.ts",
-  "homepage": "https://github.com/azure/azure-sdk-for-node/lib/services/containerservicesManagement",
+  "homepage": "https://github.com/azure/azure-sdk-for-node/tree/master/lib/services/containerservicesManagement",
   "repository": {
     "type": "git",
     "url": "https://github.com/azure/azure-sdk-for-node.git"