IPv6 and named.conf

Hello,

Since we still can't use acls for masters {}, and we can't use a hostname
in masters {}, and we can't put an IPv6 address in there, how are we
supposed to tell our slaves to allow updates from an IPv6 address?

Also, when will masters {} be fixed to allow acls? Or will sed be a
permanent requirement for BIND?

Thanks,
John Klos