I wrote:

> My BIND installation is on an OS X server, so manually updating can
> get ugly.



Hooray! Apple just released an update for Tiger (10.4.11) and Leopard
(10.5.4) client and server which includes BIND 9.3.5-P1 and 9.4.2-P1
respectively.

(Sorry - I should include the link: http://support.apple.com/kb/HT2647)

Michael