I've upgraded to bind 9.5.0-P1, from bind 9.3.1 in an effort to avoid
latest plague.

I've notice at least one major difference in behavior, and I'm
wondering if this
is something related to bind 9.5.0. I have my C-class network divided
a few subnets. After up grading my DNS server, I noticed that it
stopped serving DNS
to hosts on different subnets (and no, this is not a firewall issue).

I was able to fix it but..

Does bind 9.5.0 pay attention to the netmask or something?