From 18c3e21611b7f89495c0e55eba6e8351fe0bb1aa Mon Sep 17 00:00:00 2001
From: Daniel Taschik <taschik@users.noreply.github.com>
Date: Tue, 21 Oct 2025 17:15:45 +0100
Subject: [PATCH] Fix clean_session for MQTT_V5

---
 src/pysparkplug/_client.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pysparkplug/_client.py b/src/pysparkplug/_client.py
index ca8222a..8a75204 100644
--- a/src/pysparkplug/_client.py
+++ b/src/pysparkplug/_client.py
@@ -57,7 +57,7 @@ def __init__(
     ) -> None:
         self._client = paho_mqtt.Client(
             client_id=client_id,  # type: ignore[reportArgumentType]
-            clean_session=True,
+            clean_session=None if MQTTProtocol.MQTT_V5 == protocol else True,
             protocol=protocol,
             transport=(
                 Transport.WS