diff --git a/SeedDMS_Core/Core/inc.ClassDocument.php b/SeedDMS_Core/Core/inc.ClassDocument.php
index 3d591f393..b30e1ead1 100644
--- a/SeedDMS_Core/Core/inc.ClassDocument.php
+++ b/SeedDMS_Core/Core/inc.ClassDocument.php
@@ -3673,21 +3673,31 @@ class SeedDMS_Core_DocumentContent extends SeedDMS_Core_Object { /* {{{ */
 			$ddate = $db->qstr($date);
 		else
 			$ddate = $db->getCurrentDatetime();
+		$db->startTransaction();
 		$queryStr = "INSERT INTO `tblDocumentStatusLog` (`statusID`, `status`, `comment`, `date`, `userID`) ".
 			"VALUES ('". $this->_status["statusID"] ."', '". (int) $status ."', ".$db->qstr($comment).", ".$ddate.", '". $updateUser->getID() ."')";
 		$res = $db->getResult($queryStr);
-		if (is_bool($res) && !$res)
+		if (is_bool($res) && !$res) {
+			$db->rollbackTransaction();
 			return false;
+		}
 
 		/* Check if 'onSetStatus' callback is set */
 		if(isset($this->_dms->callbacks['onSetStatus'])) {
 			foreach($this->_dms->callbacks['onSetStatus'] as $callback) {
 				$ret = call_user_func($callback[0], $callback[1], $this, $this->_status["status"], $status);
-				if(is_bool($ret))
+				if(is_bool($ret)) {
+					unset($this->_status);
+					if($ret)
+						$db->commitTransaction();
+					else
+						$db->rollbackTransaction();
 					return $ret;
+				}
 			}
 		}
 
+		$db->commitTransaction();
 		unset($this->_status);
 		return true;
 	} /* }}} */
diff --git a/SeedDMS_Core/package.xml b/SeedDMS_Core/package.xml
index 7b44c5935..f19ca585f 100644
--- a/SeedDMS_Core/package.xml
+++ b/SeedDMS_Core/package.xml
@@ -12,11 +12,11 @@
   <email>uwe@steinmann.cx</email>
   <active>yes</active>
  </lead>
- <date>2020-04-14</date>
+ <date>2020-05-14</date>
  <time>09:43:12</time>
  <version>
-  <release>6.0.9</release>
-  <api>6.0.9</api>
+  <release>6.0.10</release>
+  <api>6.0.10</api>
  </version>
  <stability>
   <release>stable</release>
@@ -24,7 +24,7 @@
  </stability>
  <license uri="http://opensource.org/licenses/gpl-license">GPL License</license>
  <notes>
-- no changes, just keep same version as seeddms application
+SeedDMS_Core_DocumentContent::delRevisor() returns -4 if user has already made a revision
  </notes>
  <contents>
   <dir baseinstalldir="SeedDMS" name="/">
@@ -1748,7 +1748,7 @@ add method SeedDMS_Core_DatabaseAccess::setLogFp()
 	 </notes>
   </release>
   <release>
-   <date>2020-04-02</date>
+   <date>2020-04-14</date>
    <time>09:43:12</time>
    <version>
     <release>5.1.16</release>
@@ -1949,6 +1949,22 @@ remove a user from all its process can also be used to set a new user
    </stability>
    <license uri="http://opensource.org/licenses/gpl-license">GPL License</license>
    <notes>
+- no changes, just keep same version as seeddms application
+   </notes>
+  </release>
+  <release>
+   <date>2020-05-14</date>
+   <time>09:43:12</time>
+   <version>
+    <release>6.0.9</release>
+    <api>6.0.9</api>
+   </version>
+   <stability>
+    <release>stable</release>
+    <api>stable</api>
+   </stability>
+   <license uri="http://opensource.org/licenses/gpl-license">GPL License</license>
+   <notes>
 - no changes, just keep same version as seeddms application
    </notes>
   </release>