Step 10 Configure kerberos DNS dynamic updates ERROR

[ariel mannelli]

Hi There, I follow the Official HOWTO and i'm stuck at Step 10. I use Debian
Squeeze and smb Version 4.0.0alpha17-GIT-8a234cb.
When i include in /etc/bind/named.conf this file
/usr/local/samba/private/named.conf.update,
in /etc/default/bind9  i put the enviroment variables and chowned bind.bind
dns.keytab and put the content of the HOWTO in the file
/etc/bind/named.conf.options i get this error when i restart bind9 (version
9.7.3)
Jul 12 08:34:21 samba named[30823]: starting BIND 9.7.3 -u bind
Jul 12 08:34:21 samba named[30823]: built with '--prefix=/usr'
'--mandir=/usr/share/man' '--infodir=/usr/share/info'
'--sysconfdir=/etc/bind' '--localstatedir=/var' '--enable-threads'
'--enable-largefile' '--with-libtool' '--enable-shared' '--enable-static'
'--with-openssl=/usr' '--with-gssapi=/usr' '--with-gnu-ld'
'--with-dlz-postgres=no' '--with-dlz-mysql=no' '--with-dlz-bdb=yes'
'--with-dlz-filesystem=yes' '--with-dlz-ldap=yes' '--with-dlz-stub=yes'
'--with-geoip=/usr' '--enable-ipv6' 'CFLAGS=-fno-strict-aliasing
-DDIG_SIGCHASE -O2' 'LDFLAGS=' 'CPPFLAGS='
Jul 12 08:34:21 samba named[30823]: adjusted limit on open files from 1024
to 1048576
Jul 12 08:34:21 samba named[30823]: found 1 CPU, using 1 worker thread
Jul 12 08:34:21 samba named[30823]: using up to 4096 sockets
Jul 12 08:34:21 samba named[30823]: loading configuration from
'/etc/bind/named.conf'
Jul 12 08:34:21 samba named[30823]:
/usr/local/samba/private/named.conf.update:2: unknown option 'update-policy'
Jul 12 08:34:21 samba named[30823]: loading configuration: failure
Jul 12 08:34:21 samba named[30823]: exiting (due to fatal error)

I apretiate your help!
Ariel Mannelli