diff --git a/main/User_config.h b/main/User_config.h
index 1e30161..893110d 100644
--- a/main/User_config.h
+++ b/main/User_config.h
@@ -615,7 +615,8 @@ CRGB leds2[FASTLED_IND_NUM_LEDS];
 #define TimeBetweenCheckingSYS       3600 // time between (s) system checkings (like updates)
 #define TimeLedON                    1 // time LED are ON
 #define InitialMQTTConnectionTimeout 10 // time estimated (s) before the board is connected to MQTT
-#define subjectSYStoMQTT             "/SYStoMQTT"
+#define subjectSYStoMQTT             "/SYStoMQTT" // system parameters
+#define subjectRLStoMQTT             "/RLStoMQTT" // latest release information
 #define subjectMQTTtoSYSset          "/commands/MQTTtoSYS/config"
 #define subjectMQTTtoSYSupdate       "/commands/MQTTtoSYS/firmware_update"
 #define TimeToResetAtStart           5000 // Time we allow the user at start for the reset command by button press
diff --git a/main/ZmqttDiscovery.ino b/main/ZmqttDiscovery.ino
index 2e4323f..bd17fa9 100644
--- a/main/ZmqttDiscovery.ino
+++ b/main/ZmqttDiscovery.ino
@@ -617,7 +617,7 @@ void pubMqttDiscovery() {
                   stateClassNone //State Class
   );
   createDiscovery("update", //set Type
-                  subjectSYStoMQTT, "SYS: Firmware Update", (char*)getUniqueId("update", "").c_str(), //set state_topic,name,uniqueId
+                  subjectRLStoMQTT, "SYS: Firmware Update", (char*)getUniqueId("update", "").c_str(), //set state_topic,name,uniqueId
                   will_Topic, "firmware", "", //set availability_topic,device_class,value_template,
                   LATEST_OR_DEV, "", "", //set,payload_on,payload_off,unit_of_meas,
                   0, //set  off_delay
diff --git a/main/main.ino b/main/main.ino
index 70eefb7..e8068ce 100644
--- a/main/main.ino
+++ b/main/main.ino
@@ -2136,7 +2136,7 @@ bool checkForUpdates() {
     if (!jsondata.containsKey("release_summary"))
       jsondata["release_summary"] = "";
     latestVersion = jsondata["latest_version"].as<String>();
-    pub(subjectSYStoMQTT, jsondata);
+    pub(subjectRLStoMQTT, jsondata);
     Log.trace(F("Update file found on server" CR));
     return true;
   } else {
@@ -2201,7 +2201,7 @@ void MQTTHttpsFWUpdate(char* topicOri, JsonObject& HttpsFwUpdateData) {
       StaticJsonDocument<JSON_MSG_BUFFER> jsonBuffer;
       JsonObject jsondata = jsonBuffer.to<JsonObject>();
       jsondata["release_summary"] = "Update in progress ...";
-      pub(subjectSYStoMQTT, jsondata);
+      pub(subjectRLStoMQTT, jsondata);
 
       const char* ota_cert = HttpsFwUpdateData["server_cert"];
       if (!ota_cert) {
@@ -2267,7 +2267,7 @@ void MQTTHttpsFWUpdate(char* topicOri, JsonObject& HttpsFwUpdateData) {
           Log.notice(F("HTTP_UPDATE_OK" CR));
           jsondata["release_summary"] = "Update success !";
           jsondata["installed_version"] = latestVersion;
-          pub(subjectSYStoMQTT, jsondata);
+          pub(subjectRLStoMQTT, jsondata);
           ota_server_cert = ota_cert;
 #  ifndef ESPWifiManualSetup
           saveMqttConfig();