With Foreman 1.19 RC1, Katello 3.8 RC1 is now available for testing.
Please help by testing and filing any issues that you find here, so that we may address them before the final release.
Installation:
https://theforeman.org/plugins/katello/3.8/installation/index.html
Upgrade:
https://theforeman.org/plugins/katello/3.8/upgrade/index.html
Please see the preliminary changelog for detailed information.