From 2c512c20976ddc36555f090f453d17cb10a423c6 Mon Sep 17 00:00:00 2001
From: JianBo He <heeejianbo@gmail.com>
Date: Tue, 15 Feb 2022 10:01:57 +0800
Subject: [PATCH] docs: update CHANGES-4.3.md

---
 CHANGES-4.3.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGES-4.3.md b/CHANGES-4.3.md
index 148627628..dbbd94a6b 100644
--- a/CHANGES-4.3.md
+++ b/CHANGES-4.3.md
@@ -31,6 +31,7 @@ File format:
 * Fix Server-KeepAlive wrongly applied on MQTT v3.0/v3.1 [#7085]
 * Fix Stomp client can not trigger `$event/client_connection` message [#7096]
 * Fix system memory false alarm at boot
+* Fix the MQTT-SN message replay when the topic is not registered to the client [#6970]
 
 ## v4.3.12
 ### Important changes