Here's the changelog for the stable tree:
Thu Jul 26 15:51:42 CDT 2007
Upgraded to bind-9.4.1_P1 to fix security issues.
The default access control lists allow remote attackers to make recursive queries in BIND9 versions 9.4.0 through 9.4.1.
The query IDs in BIND9 prior to BIND 9.4.1-P1 are cryptographically weak.
For more information on these issues, see:
(* Security fix *)