+1446. [func] Implemented undocumented alternate transfer sources
+ from BIND 8. See use-alt-transfer-source,
+ alt-transfer-source-v4 and alt-transfer-source-v6.
+
+ SECURITY: use-alt-transfer-source is ENABLED unless
+ you are using views. This may caues a security risk
+ resulting in accidental disclosure of wrong zone
+ content if the master supplying different source
+ content based on IP address. If you are not certian
+ ISC recommends setting use-alt-transfer-source no;
+
1445. [bug] DNS_ADBFIND_STARTATROOT broke stub zones. This has
been replaced with DNS_ADBFIND_STARTATZONE which
causes the search to start using the closest zone.