diff --git a/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/AssignmentStatus.cs b/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/AssignmentStatus.cs
index 6e2edf645134..b0613a3ecfee 100644
--- a/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/AssignmentStatus.cs
+++ b/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/AssignmentStatus.cs
@@ -32,7 +32,7 @@ public AssignmentStatus()
         /// definition.</param>
         /// <param name="lastModified">Last modified time of this blueprint
         /// definition.</param>
-        public AssignmentStatus(string timeCreated = default(string), string lastModified = default(string))
+        public AssignmentStatus(System.DateTime? timeCreated = default(System.DateTime?), System.DateTime? lastModified = default(System.DateTime?))
             : base(timeCreated, lastModified)
         {
             CustomInit();
diff --git a/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintResourceStatusBase.cs b/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintResourceStatusBase.cs
index a6b6b758db3e..5b3e23a4bd25 100644
--- a/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintResourceStatusBase.cs
+++ b/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintResourceStatusBase.cs
@@ -35,7 +35,7 @@ public BlueprintResourceStatusBase()
         /// definition.</param>
         /// <param name="lastModified">Last modified time of this blueprint
         /// definition.</param>
-        public BlueprintResourceStatusBase(string timeCreated = default(string), string lastModified = default(string))
+        public BlueprintResourceStatusBase(System.DateTime? timeCreated = default(System.DateTime?), System.DateTime? lastModified = default(System.DateTime?))
         {
             TimeCreated = timeCreated;
             LastModified = lastModified;
@@ -51,13 +51,13 @@ public BlueprintResourceStatusBase()
         /// Gets creation time of this blueprint definition.
         /// </summary>
         [JsonProperty(PropertyName = "timeCreated")]
-        public string TimeCreated { get; private set; }
+        public System.DateTime? TimeCreated { get; private set; }
 
         /// <summary>
         /// Gets last modified time of this blueprint definition.
         /// </summary>
         [JsonProperty(PropertyName = "lastModified")]
-        public string LastModified { get; private set; }
+        public System.DateTime? LastModified { get; private set; }
 
     }
 }
diff --git a/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintStatus.cs b/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintStatus.cs
index b410d3ba5886..dca003916e67 100644
--- a/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintStatus.cs
+++ b/src/SDKs/Blueprint/Management.Blueprint/Generated/Models/BlueprintStatus.cs
@@ -32,7 +32,7 @@ public BlueprintStatus()
         /// definition.</param>
         /// <param name="lastModified">Last modified time of this blueprint
         /// definition.</param>
-        public BlueprintStatus(string timeCreated = default(string), string lastModified = default(string))
+        public BlueprintStatus(System.DateTime? timeCreated = default(System.DateTime?), System.DateTime? lastModified = default(System.DateTime?))
             : base(timeCreated, lastModified)
         {
             CustomInit();
diff --git a/src/SDKs/Blueprint/Management.Blueprint/Generated/SdkInfo_BlueprintManagementClient.cs b/src/SDKs/Blueprint/Management.Blueprint/Generated/SdkInfo_BlueprintManagementClient.cs
index a6c1798c9e7f..41e26d291811 100644
--- a/src/SDKs/Blueprint/Management.Blueprint/Generated/SdkInfo_BlueprintManagementClient.cs
+++ b/src/SDKs/Blueprint/Management.Blueprint/Generated/SdkInfo_BlueprintManagementClient.cs
@@ -28,16 +28,5 @@ public static IEnumerable<Tuple<string, string, string>> ApiInfo_BlueprintManage
               }.AsEnumerable();
           }
       }
-      // BEGIN: Code Generation Metadata Section
-      public static readonly String AutoRestVersion = "latest";
-      public static readonly String AutoRestBootStrapperVersion = "autorest@2.0.4283";
-      public static readonly String AutoRestCmdExecuted = "cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/blueprint/resource-manager/readme.md --csharp --version=latest --reflect-api-versions --csharp-sdks-folder=C:\\Workspace\\Git\\azure-sdk-for-net\\src\\SDKs";
-      public static readonly String GithubForkName = "Azure";
-      public static readonly String GithubBranchName = "master";
-      public static readonly String GithubCommidId = "3b572f5f8ea93a2dff6f717515ee37f080ff06f7";
-      public static readonly String CodeGenerationErrors = "";
-      public static readonly String GithubRepoName = "azure-rest-api-specs";
-      // END: Code Generation Metadata Section
   }
 }
-