this mode counts only triggers with the last event in unacknowledged status.
---
 README.md         | 2 +-
 zabbixAPI/conn.go | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 196215d..d67601a 100644
--- a/README.md
+++ b/README.md
@@ -102,7 +102,7 @@ Here is example of configuration file with default values:
     ],
     "Hostgroups": {
       "CountUnknown": false,                     // Count triggers in an unknown state or not
-      "CountAcknowledgeStatus": "all",           // Count triggers with all/acknowledged/unacknowledged events
+      "CountAcknowledgeStatus": "all",           // Count triggers with all/acknowledged/unacknowledged/lastunacknowledged events
       "BaseOID": "1.3.6.1.4.1.3046.7.55.10.11",
       "Groups": [
         {
diff --git a/zabbixAPI/conn.go b/zabbixAPI/conn.go
index 9e4e158..b50b229 100644
--- a/zabbixAPI/conn.go
+++ b/zabbixAPI/conn.go
@@ -18,6 +18,8 @@ const (
 	EventAck = "acknowledged"
 	// EventUnAck filter value for returning triggers with events in unacknowledged status.
 	EventUnAck = "unacknowledged"
+	// EventLastUnAck filter value for returning triggers with the last event in unacknowledged status.
+	EventLastUnAck = "lastunacknowledged"
 
 	jsonRPCVersion = "2.0"
 	rpcType        = "application/json-rpc"
@@ -155,6 +157,8 @@ func (c *Connection) GetHostGroupTriggers(count bool, eventStatus, groupName str
 		p.WithAcknowledgedEvents = true
 	case EventUnAck:
 		p.WithUnacknowledgedEvents = true
+	case EventLastUnAck:
+		p.HideAcknowledged = true
 	}
 
 	return c.getTriggers(p)
-- 
2.45.1.windows.1