From c37866e53437d2c19888afda9510737e18366b77 Mon Sep 17 00:00:00 2001
From: Christian <6939810+chkr1011@users.noreply.github.com>
Date: Sat, 26 Nov 2022 14:51:36 +0100
Subject: [PATCH] Refactor code and update release notes

---
 .github/workflows/ReleaseNotes.md                       | 1 +
 Source/MQTTnet/Server/InjectedMqttApplicationMessage.cs | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ReleaseNotes.md b/.github/workflows/ReleaseNotes.md
index 7166dbea..2cb50c8f 100644
--- a/.github/workflows/ReleaseNotes.md
+++ b/.github/workflows/ReleaseNotes.md
@@ -1,2 +1,3 @@
 [Core] Fixed a memory leak in _AsyncSignal_ implementation (#1586, thanks to @mario-zelger).
 [Server] Fix not properly reset statistics (#1587, thanks to @damikun).
+[Server] Now using an empty string as the sender client ID for injected application messages (#1583, thanks to @xljiulang).
\ No newline at end of file
diff --git a/Source/MQTTnet/Server/InjectedMqttApplicationMessage.cs b/Source/MQTTnet/Server/InjectedMqttApplicationMessage.cs
index 0190ec00..7d027ab6 100644
--- a/Source/MQTTnet/Server/InjectedMqttApplicationMessage.cs
+++ b/Source/MQTTnet/Server/InjectedMqttApplicationMessage.cs
@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.Threading;
 
 namespace MQTTnet.Server
 {