diff --git a/doc/OSP.xml b/doc/OSP.xml
index 3f3cdc23..222510a2 100644
--- a/doc/OSP.xml
+++ b/doc/OSP.xml
@@ -1600,6 +1600,24 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20.08
+
+ GET_VTS
+ Add attribute SHA256_HASH
+
+ The new attribute SHA256_HASH is calculated from the vulnerability test OID, modification time and VT preferences, sorted by OID. The new attribute is helpful for feed integrity check.
+
+ 20.08
+
+
+
+ GET_VTS
+ Add attribute VTS_VERSION
+
+ The feed version is included in the get_vts command response.
+
+ 20.08
+
+
START_SCAN
Add support for target options
@@ -1608,6 +1626,14 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20.08
+
+ GET_SCANS
+ Add scan progress details
+ New attribute PROGRESS to specify whether to return a detailed progress information.
+
+ 20.08
+
+
GET_VTS
command added