Index: trunk/pdns/pdns/docs/pdns.xml =================================================================== --- trunk/pdns/pdns/docs/pdns.xml (revision 2296) +++ trunk/pdns/pdns/docs/pdns.xml (revision 2303) @@ -12962,5 +12962,5 @@ PDNS will perform an internal list of the domain to determine highest change_date field of all records within the zone, and use that as the zone serial number. This means that the serial number is always raised when changes are made to the zone, as long - as the change_date field is being set. + as the change_date field is being set. Make sure to check whether your backend of choise supports Autoserial.