diff --git a/src/CHANGES.md b/src/CHANGES.md
index 4547d6ed..cb9d8deb 100644
--- a/src/CHANGES.md
+++ b/src/CHANGES.md
@@ -1,5 +1,9 @@
 # Development Changes
 
+## 0.8.4 - 2023-11-10
+* changed MqTT alarm topic, removed retained flag #1212
+* reduce last_success MQTT messages (#1124)
+
 ## 0.8.3 - 2023-11-09
 * fix yield day reset during day #848
 * add total AC Max Power to WebUI
diff --git a/src/defines.h b/src/defines.h
index 327b7f7e..add9623d 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       8
-#define VERSION_PATCH       3
+#define VERSION_PATCH       4
 
 //-------------------------------------
 typedef struct {
diff --git a/src/publisher/pubMqtt.h b/src/publisher/pubMqtt.h
index a65a6b61..48dbe150 100644
--- a/src/publisher/pubMqtt.h
+++ b/src/publisher/pubMqtt.h
@@ -516,25 +516,17 @@ class PubMqtt {
 
                 snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/alarm/cnt", iv->config->name);
                 snprintf(mVal, 40, "%d", iv->alarmCnt);
-                publish(mSubTopic, mVal, true);
+                publish(mSubTopic, mVal, false);
 
                 for(uint8_t j = 0; j < 10; j++) {
                     if(0 != iv->lastAlarm[j].code) {
-                        snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/alarm/%d/code", iv->config->name, j);
-                        snprintf(mVal, 40, "%d", iv->lastAlarm[j].code);
-                        publish(mSubTopic, mVal, true);
-
-                        snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/alarm/%d/str", iv->config->name, j);
-                        snprintf(mVal, 40, "%s", iv->getAlarmStr(iv->lastAlarm[j].code).c_str());
-                        publish(mSubTopic, mVal, true);
-
-                        snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/alarm/%d/start", iv->config->name, j);
-                        snprintf(mVal, 40, "%d", iv->lastAlarm[j].start + lastMidnight);
-                        publish(mSubTopic, mVal, true);
-
-                        snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/alarm/%d/end", iv->config->name, j);
-                        snprintf(mVal, 40, "%d", iv->lastAlarm[j].end + lastMidnight);
-                        publish(mSubTopic, mVal, true);
+                        snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/alarm/%d", iv->config->name, j);
+                        snprintf(mVal, 100, "{\"code\":%d,\"str\":\"%s\",\"start\":%d,\"end\":%d}",
+                            iv->lastAlarm[j].code,
+                            iv->getAlarmStr(iv->lastAlarm[j].code).c_str(),
+                            iv->lastAlarm[j].start + lastMidnight,
+                            iv->lastAlarm[j].end + lastMidnight);
+                        publish(mSubTopic, mVal, false);
                         yield();
                     }
                 }
@@ -613,7 +605,7 @@ class PubMqtt {
         // global buffer for mqtt topic. Used when publishing mqtt messages.
         char mTopic[MQTT_TOPIC_LEN + 32 + MAX_NAME_LENGTH + 1];
         char mSubTopic[32 + MAX_NAME_LENGTH + 1];
-        char mVal[40];
+        char mVal[100];
         discovery_t mDiscovery;
 };
 
diff --git a/src/publisher/pubMqttIvData.h b/src/publisher/pubMqttIvData.h
index a1c03c86..053e359e 100644
--- a/src/publisher/pubMqttIvData.h
+++ b/src/publisher/pubMqttIvData.h
@@ -29,7 +29,6 @@ class PubMqttIvData {
             mZeroValues   = false;
 
             memset(mIvLastRTRpub, 0, MAX_NUM_INVERTERS * sizeof(uint32_t));
-            memset(mIvLastPublish, 0, MAX_NUM_INVERTERS * sizeof(uint32_t));
             mRTRDataHasBeenSent = false;
 
             mTable[IDLE]        = &PubMqttIvData::stateIdle;
@@ -103,7 +102,7 @@ class PubMqttIvData {
             mPos = 0;
             if(found) {
                 record_t<> *rec = mIv->getRecordStruct(mCmd);
-                if((mIv->getLastTs(rec) != mIvLastPublish[mIv->id]) && mIv->getLastTs(rec) != 0 ) { //workaround for startup. Suspect, mCmd might cause to much messages....
+                if((RealTimeRunData_Debug == mCmd) && mIv->getLastTs(rec) != 0 ) { //workaround for startup. Suspect, mCmd might cause to much messages....
                     snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/last_success", mIv->config->name);
                     snprintf(mVal, 40, "%d", mIv->getLastTs(rec));
                     mPublish(mSubTopic, mVal, true, QOS_0);
@@ -134,7 +133,6 @@ class PubMqttIvData {
                 pubData &= (lastTs != mIvLastRTRpub[mIv->id]);
 
             if (pubData) {
-                mIvLastPublish[mIv->id] = lastTs;
                 if(mPos < rec->length) {
                     bool retained = false;
                     if (mCmd == RealTimeRunData_Debug) {
@@ -241,7 +239,6 @@ class PubMqttIvData {
         Inverter<> *mIv, *mIvSend;
         uint8_t mPos;
         uint32_t mIvLastRTRpub[MAX_NUM_INVERTERS];
-        uint32_t mIvLastPublish[MAX_NUM_INVERTERS];
         bool mRTRDataHasBeenSent;
 
         char mSubTopic[32 + MAX_NAME_LENGTH + 1];