diff --git a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Generated/Models/AppPatch.cs b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Generated/Models/AppPatch.cs
index 3cbd09426950..1e5769cedb3c 100644
--- a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Generated/Models/AppPatch.cs
+++ b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Generated/Models/AppPatch.cs
@@ -35,6 +35,7 @@ public AppPatch()
         /// Initializes a new instance of the AppPatch class.
         /// </summary>
         /// <param name="tags">Instance tags</param>
+        /// <param name="sku">A valid instance SKU.</param>
         /// <param name="applicationId">The ID of the application.</param>
         /// <param name="displayName">The display name of the
         /// application.</param>
@@ -44,9 +45,10 @@ public AppPatch()
         /// application. Optional; if not specified, defaults to a blank
         /// blueprint and allows the application to be defined from
         /// scratch.</param>
-        public AppPatch(IDictionary<string, string> tags = default(IDictionary<string, string>), string applicationId = default(string), string displayName = default(string), string subdomain = default(string), string template = default(string))
+        public AppPatch(IDictionary<string, string> tags = default(IDictionary<string, string>), AppSkuInfo sku = default(AppSkuInfo), string applicationId = default(string), string displayName = default(string), string subdomain = default(string), string template = default(string))
         {
             Tags = tags;
+            Sku = sku;
             ApplicationId = applicationId;
             DisplayName = displayName;
             Subdomain = subdomain;
@@ -65,6 +67,12 @@ public AppPatch()
         [JsonProperty(PropertyName = "tags")]
         public IDictionary<string, string> Tags { get; set; }
 
+        /// <summary>
+        /// Gets or sets a valid instance SKU.
+        /// </summary>
+        [JsonProperty(PropertyName = "sku")]
+        public AppSkuInfo Sku { get; set; }
+
         /// <summary>
         /// Gets the ID of the application.
         /// </summary>
@@ -92,5 +100,18 @@ public AppPatch()
         [JsonProperty(PropertyName = "properties.template")]
         public string Template { get; set; }
 
+        /// <summary>
+        /// Validate the object.
+        /// </summary>
+        /// <exception cref="ValidationException">
+        /// Thrown if validation fails
+        /// </exception>
+        public virtual void Validate()
+        {
+            if (Sku != null)
+            {
+                Sku.Validate();
+            }
+        }
     }
 }
diff --git a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Microsoft.Azure.Management.IotCentral.csproj b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Microsoft.Azure.Management.IotCentral.csproj
index fc621e049ee0..7eb936a97c19 100644
--- a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Microsoft.Azure.Management.IotCentral.csproj
+++ b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Microsoft.Azure.Management.IotCentral.csproj
@@ -8,11 +8,11 @@
     <Description>Provides management capabilities for Microsoft Azure IotCentral.</Description>
     <AssemblyTitle>Microsoft Azure IotCentral Management</AssemblyTitle>
     <AssemblyName>Microsoft.Azure.Management.IotCentral</AssemblyName>
-    <Version>2.1.0</Version>
+    <Version>2.2.0</Version>
     <PackageTags>Microsoft Azure IotCentral;IotCentral management;IotCentral;</PackageTags>
     <PackageReleaseNotes>
       <![CDATA[
-        This release adds new skus: ST0, ST1, ST2 for Microsoft.Azure.Management.IotCentral.
+        This release change error to be CloudException, and remove regex check for IOTC app.
       ]]>
     </PackageReleaseNotes>
   </PropertyGroup>
diff --git a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Properties/AssemblyInfo.cs b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Properties/AssemblyInfo.cs
index b87ec0d1f3a7..852680e5f015 100644
--- a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Properties/AssemblyInfo.cs
+++ b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/Properties/AssemblyInfo.cs
@@ -7,8 +7,8 @@
 [assembly: AssemblyTitle("Microsoft Azure IotCentral Management Library")]
 [assembly: AssemblyDescription("Provides management functionality for Microsoft Azure IotCentral Resources.")]
 
-[assembly: AssemblyVersion("2.1.0.0")]
-[assembly: AssemblyFileVersion("2.1.0.0")]
+[assembly: AssemblyVersion("2.2.0.0")]
+[assembly: AssemblyFileVersion("2.2.0.0")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("Microsoft")]
 [assembly: AssemblyProduct("Microsoft Azure .NET SDK")]
diff --git a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/generate.ps1 b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/generate.ps1
index 982b3628cbf4..e1e96c29bfec 100644
--- a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/generate.ps1
+++ b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/src/generate.ps1
@@ -1 +1 @@
-Start-AutoRestCodeGeneration -ResourceProvider "iotcentral/resource-manager" -AutoRestVersion "latest" -SdkGenerationDirectory "$PSScriptRoot\Generated"
\ No newline at end of file
+Start-AutoRestCodeGeneration -ResourceProvider "iotcentral/resource-manager" -AutoRestVersion "v2" -SdkGenerationDirectory "$PSScriptRoot\Generated"
\ No newline at end of file
diff --git a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/tests/ScenarioTests/IotCentralLifeCycleTests.cs b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/tests/ScenarioTests/IotCentralLifeCycleTests.cs
index dfbf99da0d7a..2c8cbadd965c 100644
--- a/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/tests/ScenarioTests/IotCentralLifeCycleTests.cs
+++ b/sdk/iotcentral/Microsoft.Azure.Management.IotCentral/tests/ScenarioTests/IotCentralLifeCycleTests.cs
@@ -15,6 +15,7 @@ namespace IotCentral.Tests.ScenarioTests
     using Newtonsoft.Json.Linq;
     using Xunit;
     using Microsoft.Rest;
+    using Microsoft.Rest.Azure;
 
     public class IotCentralLifeCycleTests : IotCentralTestBase
     {
@@ -147,32 +148,6 @@ public void TestAppWhenNullAppSkuInfo()
             Assert.True(exceptionThrown);
         }
 
-        [Fact]
-        public void TestAppWhenInvalidSubdomain()
-        {
-            var exceptionThrown = false;
-            try
-            {
-                App app = new App()
-                {
-                    Location = IotCentralTestUtilities.DefaultLocation,
-                    Sku = new AppSkuInfo()
-                    {
-                        Name = "ST1"
-                    },
-                    Subdomain = "SOME-INVALID-SUBDOMAIN",
-                    DisplayName = IotCentralTestUtilities.DefaultUpdateResourceName
-                };
-                app.Validate();
-            }
-            catch (Exception ex)
-            {
-                exceptionThrown = true;
-                Assert.Equal(typeof(ValidationException), ex.GetType());
-            }
-            Assert.True(exceptionThrown);
-        }
-
         [Fact]
         public void TestAppSkuInfoWhenNullInput()
         {
@@ -207,24 +182,6 @@ public void TestOperationInputsWhenNullInput()
             Assert.True(exceptionThrown);
         }
 
-        [Fact]
-        public void TestOperationInputsWhenInvalidInput()
-        {
-            var exceptionThrown = false;
-            try
-            {
-                var nameInput = "SOMEINVALIDINPUT";
-                OperationInputs operationInput = new OperationInputs(nameInput);
-                operationInput.Validate();
-            }
-            catch (Exception ex)
-            {
-                exceptionThrown = true;
-                Assert.Equal(typeof(ValidationException), ex.GetType());
-            }
-            Assert.True(exceptionThrown);
-        }
-
         [Fact]
         public void TestResourceWhenNullLocation()
         {