From fc0d0685a518c02c5a081436ece3c729f4c23340 Mon Sep 17 00:00:00 2001
From: "David R. Williamson" <drwill@microsoft.com>
Date: Wed, 14 Apr 2021 11:44:25 -0700
Subject: [PATCH] Update service client API version to 2021-04-12

---
 iothub/service/src/ClientApiVersionHelper.cs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/iothub/service/src/ClientApiVersionHelper.cs b/iothub/service/src/ClientApiVersionHelper.cs
index a31602a329..3ae2fc2518 100644
--- a/iothub/service/src/ClientApiVersionHelper.cs
+++ b/iothub/service/src/ClientApiVersionHelper.cs
@@ -1,8 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
-using System;
-
 namespace Microsoft.Azure.Devices
 {
     /// <summary>
@@ -11,7 +9,7 @@ namespace Microsoft.Azure.Devices
     internal class ClientApiVersionHelper
     {
         private const string ApiVersionQueryPrefix = "api-version=";
-        private const string ApiVersionDefault = "2020-09-30";
+        private const string ApiVersionDefault = "2021-04-12";
 
         /// <summary>
         /// The default API version to use for all data-plane service calls