diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56fb290..1ac86ee 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.6.9] - 2026-02-18
+
+### Fixed
+- **bot.py**: `_on_node_updated` Signatur um `interface=None` ergänzt –
+  `meshtastic.node.updated` sendet `(node, interface)`, fehlender Parameter
+  führte zu `SenderUnknownMsgDataError` und Absturz des Node-Handlers.
+
 ## [0.6.8] - 2026-02-18
 
 ### Fixed
diff --git a/config.yaml b/config.yaml
index e309ed9..1e8d116 100644
--- a/config.yaml
+++ b/config.yaml
@@ -1,4 +1,4 @@
-version: "0.6.8"
+version: "0.6.9"
 
 bot:
   name: "MeshDD-Bot"
diff --git a/meshbot/bot.py b/meshbot/bot.py
index 6cb1331..f44cd05 100644
--- a/meshbot/bot.py
+++ b/meshbot/bot.py
@@ -193,7 +193,7 @@ class MeshBot:
             stats["bot_connected"] = self._connected
             await self.ws_manager.broadcast("stats_update", stats)
 
-    def _on_node_updated(self, node, topic=pub.AUTO_TOPIC):
+    def _on_node_updated(self, node, interface=None, topic=pub.AUTO_TOPIC):
         self.loop.call_soon_threadsafe(asyncio.ensure_future, self._handle_node_update(node))
 
     def _on_receive(self, packet, interface, topic=pub.AUTO_TOPIC):