I have removed the updated caching-nameserver from the core OS repo of CentOS 3.4 i386 as there have been reports of nameservers losing their configuration and stopping when the update was applied.
I have reverted caching-nameserver in the 3.4 core OS back to the CentOS 3.3 version caching-nameserver-7.2-7.noarch.rpm.
The new version caching-nameserver-7.3-3_EL3.noarch.rpm is now in the testing repo of 3.4.
The new version is still in the .isos but it should be safe for new installs.
Lance