From my logs after upgrading to current devel packages: Jul 23 11:53:54 jik2 cupsd[18729]: *** WARNING *** The programme 'cupsd' uses the Apple Bonjour compatiblity layer of Avahi. Jul 23 11:53:54 jik2 cupsd[18729]: *** WARNING *** Please fix your application to use the native API of Avahi! Jul 23 11:53:54 jik2 cupsd[18729]: *** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=cupsd>
*** This bug has been marked as a duplicate of 249304 ***