diff --git a/ktapi/KTAPIDocument.inc.php b/ktapi/KTAPIDocument.inc.php
index eb9670f..9f3d274 100644
--- a/ktapi/KTAPIDocument.inc.php
+++ b/ktapi/KTAPIDocument.inc.php
@@ -2141,6 +2141,18 @@ class KTAPI_Document extends KTAPI_FolderItem
 	}
 
 	/**
+	 * Gets the content version id of the document
+	 *
+	 * @author KnowledgeTree Team
+	 * @access public
+	 * @return integer the content version id
+	*/
+	function get_content_version()
+	{
+		return $this->document->getContentVersionId();
+	}
+	
+	/**
 	 * Gets the url which can be used to download the document.
 	 *
 	 * @param int $version Not implemented. The content version of the document
diff --git a/ktapi/ktapi.inc.php b/ktapi/ktapi.inc.php
index 5c0e57e..33ea1e6 100644
--- a/ktapi/ktapi.inc.php
+++ b/ktapi/ktapi.inc.php
@@ -4735,21 +4735,28 @@ class KTAPI
 	    }
         return $response;
 	}
-
+	
+	/**
+	* Method to check whether content version is the latest for a specific document
+	*
+	* @author KnowledgeTree Team
+	* @access public
+	* @param string $documentID The id of the document
+	* @param string $contentID The id of the content version to check
+	* @return bool $response The formatted response array
+	*/
 	public function is_latest_version($documentID, $contentID)
-	{
-		$sql = 'SELECT COUNT(document_content_version.id) AS newdocumentcount
-		FROM document_content_version
-		WHERE document_content_version.document_id ="'.$documentID.'" AND
-		document_content_version.id > "'.$contentID.'"';
+	{		
+		$document = $this->get_document_by_id($documentID);
 
-		$row = DBUtil::getOneResult($sql);
- 		$row = (int)$row['newdocumentcount'];
+ 		$maxcontentID = $document->get_content_version();
 
-		if ($row > 0) {
+		if ($maxcontentID > $contentID) {
 			$response['is_latest'] = 'FALSE';
+			$response['max_contentID'] = $maxcontentID;
 		} else {
 			$response['is_latest'] = 'TRUE';
+			$response['max_contentID'] = $contentID;
 		}
 
 		$response['status_code'] = 0;