Securing DNS traffic with DNSSEC in Red Hat 9 ?

Hi to the Red Hat community,

I would like to find information please about Red Hat 9 that would, essentially, cover the same topics as the one covered here in the Red Hat 7 security guide.

So far, I could check :
- this post on the Red Hat Sysadmin blog about Unbound ;
- different Red Hat 9 guides such as here ;
- the Red Hat 8 and 9 Release notes in search for deprecated packages to find what about 'dnssec-trigger', as it is available in Fedora but can't find it in Red Hat 9.

Many thanks in advance,

Alexandre