Each version up may include adding or changing signatures.In this case, there is possibility to change the scan results from last time.
In order to scan to only unprocessed signatures (signatures that are newly added or changed) , please refer to the following procedure.
1. Open the web "Plan" page.
2. Check the box of "Apply only unprocessed signatures" in the "Apply signature selection" page.
3. Add the scanning plan as usual and condcut the Web application scan.