What happened to bind? In 5.1 it was version 4.9.7-1 and in 5.2 it is 8.1.2-5? Where is the new docs, what changed it, what prompted the change and why wasn't anyone told about it? The user man has nothing on it.
The next version of bind has been under development at isc.org for at least a year. See the URL avaiable listed by "rpm -qi bind". There is extensive documentation available at that URL. See in particular the BOG (Bind Operations Guide).