As you may or may not know, we do not have the ability to currently announce CentOS Linux 8 announcements on the CentOS Annonuce Mailing List. We would like to add this in the future. For now, what we do have is an RSS feed for all updates that get released.
Use your favorite RSS Feed Tool (I use Thunderbird .. lots of other things available).
Subscribe to the xml file you are interested in .. for example, for normal CentOS Linux 8 x86_64 arch installs .. you would subscribe to:
https://feeds.centos.org/centos-8-x86_64-BaseOS.xml https://feeds.centos.org/centos-8-x86_64-AppStream.xml
This is for people who have asked about what rpms are updated and how to see when new updates happen on CentOS Linux 8. But it works for all versions of CentOS (There are xml files for all repos of CentOS Linxui 6. 7, and 8 .. Also CentOS Stream).
Thanks, Johnny Hughes