BIND 9.11.1-P2 - New DNSSEC Root Key

No, because Bind is not provided by Directadmin, it's amongst the things you have to preinstall.

So to update bind, just use the update system of the os like apt-get for Debian like and yum for Centos/Redhat/Fedora when the update comes available for your OS.

There might be somethingn for directadmin for when creating domains, not sure about that. But that would be an action for DA, not for us I guess.