diff --git a/SeedDMS_Core/Core/inc.ClassDMS.php b/SeedDMS_Core/Core/inc.ClassDMS.php
index f240e39cd..922f9e918 100644
--- a/SeedDMS_Core/Core/inc.ClassDMS.php
+++ b/SeedDMS_Core/Core/inc.ClassDMS.php
@@ -1462,7 +1462,7 @@ class SeedDMS_Core_DMS {
 		if(is_array($query)) {
 			foreach(array('limit', 'offset', 'logicalmode', 'searchin', 'startFolder', 'owner', 'status', 'creationstartdate', 'creationenddate', 'modificationstartdate', 'modificationenddate', 'categories', 'attributes', 'mode', 'expirationstartdate', 'expirationenddate') as $paramname)
 				${$paramname} = isset($query[$paramname]) ? $query[$paramname] : ${$paramname};
-			foreach(array('orderby') as $paramname)
+			foreach(array('orderby', 'statusstartdate', 'statusenddate') as $paramname)
 				${$paramname} = isset($query[$paramname]) ? $query[$paramname] : '';
 			$query = isset($query['query']) ? $query['query'] : '';
 		}
@@ -1558,7 +1558,7 @@ class SeedDMS_Core_DMS {
 			if ($creationstartdate) {
 				$startdate = SeedDMS_Core_DMS::makeTimeStamp($creationstartdate['hour'], $creationstartdate['minute'], $creationstartdate['second'], $creationstartdate['year'], $creationstartdate["month"], $creationstartdate["day"]);
 				if ($startdate) {
-					$searchCreateDate .= "`tblFolders`.`date` >= ".$startdate;
+					$searchCreateDate .= "`tblFolders`.`date` >= ".$this->db->qstr($startdate);
 				}
 			}
 			if ($creationenddate) {
@@ -1567,7 +1567,7 @@ class SeedDMS_Core_DMS {
 					/** @noinspection PhpUndefinedVariableInspection */
 					if($startdate)
 						$searchCreateDate .= " AND ";
-					$searchCreateDate .= "`tblFolders`.`date` <= ".$stopdate;
+					$searchCreateDate .= "`tblFolders`.`date` <= ".$this->db->qstr($stopdate);
 				}
 			}
 
@@ -1772,7 +1772,7 @@ class SeedDMS_Core_DMS {
 			if ($creationstartdate) {
 				$startdate = SeedDMS_Core_DMS::makeTimeStamp($creationstartdate['hour'], $creationstartdate['minute'], $creationstartdate['second'], $creationstartdate['year'], $creationstartdate["month"], $creationstartdate["day"]);
 				if ($startdate) {
-					$searchCreateDate .= "`tblDocuments`.`date` >= ".$startdate;
+					$searchCreateDate .= "`tblDocuments`.`date` >= ".$this->db->qstr($startdate);
 				}
 			}
 			if ($creationenddate) {
@@ -1780,7 +1780,7 @@ class SeedDMS_Core_DMS {
 				if ($stopdate) {
 					if($searchCreateDate)
 						$searchCreateDate .= " AND ";
-					$searchCreateDate .= "`tblDocuments`.`date` <= ".$stopdate;
+					$searchCreateDate .= "`tblDocuments`.`date` <= ".$this->db->qstr($stopdate);
 				}
 			}
 			if ($modificationstartdate) {
@@ -1796,7 +1796,7 @@ class SeedDMS_Core_DMS {
 				if ($stopdate) {
 					if($searchCreateDate)
 						$searchCreateDate .= " AND ";
-					$searchCreateDate .= "`tblDocumentContent`.`date` <= ".$stopdate;
+					$searchCreateDate .= "`tblDocumentContent`.`date` <= ".$this->db->qstr($stopdate);
 				}
 			}
 			$searchExpirationDate = '';
@@ -1805,7 +1805,7 @@ class SeedDMS_Core_DMS {
 				if ($startdate) {
 					if($searchExpirationDate)
 						$searchExpirationDate .= " AND ";
-					$searchExpirationDate .= "`tblDocuments`.`expires` >= ".$startdate;
+					$searchExpirationDate .= "`tblDocuments`.`expires` >= ".$this->db->qstr($startdate);
 				}
 			}
 			if ($expirationenddate) {
@@ -1813,7 +1813,24 @@ class SeedDMS_Core_DMS {
 				if ($stopdate) {
 					if($searchExpirationDate)
 						$searchExpirationDate .= " AND ";
-					$searchExpirationDate .= "`tblDocuments`.`expires` <= ".$stopdate;
+					$searchExpirationDate .= "`tblDocuments`.`expires` <= ".$this->db->qstr($stopdate);
+				}
+			}
+			$searchStatusDate = '';
+			if ($statusstartdate) {
+				$startdate = $statusstartdate['year'].'-'.$statusstartdate["month"].'-'.$statusstartdate["day"].' '.$statusstartdate['hour'].':'.$statusstartdate['minute'].':'.$statusstartdate['second'];
+				if ($startdate) {
+					if($searchStatusDate)
+						$searchStatusDate .= " AND ";
+					$searchStatusDate .= "`tblDocumentStatusLog`.`date` >= ".$this->db->qstr($startdate);
+				}
+			}
+			if ($statusenddate) {
+				$stopdate = $statusenddate['year'].'-'.$statusenddate["month"].'-'.$statusenddate["day"].' '.$statusenddate['hour'].':'.$statusenddate['minute'].':'.$statusenddate['second'];
+				if ($stopdate) {
+					if($searchStatusDate)
+						$searchStatusDate .= " AND ";
+					$searchStatusDate .= "`tblDocumentStatusLog`.`date` <= ".$this->db->qstr($stopdate);
 				}
 			}
 
@@ -1859,6 +1876,9 @@ class SeedDMS_Core_DMS {
 			if (strlen($searchExpirationDate)>0) {
 				$searchQuery .= " AND (".$searchExpirationDate.")";
 			}
+			if (strlen($searchStatusDate)>0) {
+				$searchQuery .= " AND (".$searchStatusDate.")";
+			}
 			if ($searchAttributes) {
 				$searchQuery .= " AND (".implode(" AND ", $searchAttributes).")";
 			}
@@ -1868,7 +1888,7 @@ class SeedDMS_Core_DMS {
 				$searchQuery .= " AND `tblDocumentStatusLog`.`status` IN (".implode(',', $status).")";
 			}
 
-			if($searchKey || $searchOwner || $searchCategories || $searchCreateDate || $searchExpirationDate || $searchAttributes || $status) {
+			if($searchKey || $searchOwner || $searchCategories || $searchCreateDate || $searchExpirationDate || $searchStatusDate || $searchAttributes || $status) {
 				// Count the number of rows that the search will produce.
 				$resArr = $this->db->getResultArray("SELECT COUNT(*) AS num FROM (SELECT DISTINCT `tblDocuments`.`id` ".$searchQuery.") a");
 				$totalDocs = 0;
diff --git a/SeedDMS_Core/package.xml b/SeedDMS_Core/package.xml
index d9c5cccf7..fb059f999 100644
--- a/SeedDMS_Core/package.xml
+++ b/SeedDMS_Core/package.xml
@@ -12,7 +12,7 @@
   <email>uwe@steinmann.cx</email>
   <active>yes</active>
  </lead>
- <date>2021-01-27</date>
+ <date>2021-03-15</date>
  <time>13:44:55</time>
  <version>
   <release>5.1.22</release>
@@ -30,6 +30,7 @@
 - add new parameter to SeedDMS_Core_DMS->getDocumentList() for skipping expired documents
 - add parameter $incdisabled to SeedDMS_Core_Folder::getNotifyList()
 - do not validate value in SeedDMS_Core_Attribute::setValue(), it should have been done before
+- SeedDMS_Core_DMS::search() can search for last date of document status change
  </notes>
  <contents>
   <dir baseinstalldir="SeedDMS" name="/">