[Pki-users] will the new version of RHCS support RHEL6?

Hi all, I'm a beginner of the dogtag certificate system, dogtag（RHCS）is a wonderful project, but I'm confused about RHCS, could you give any help? The latest version of RHCS is 8.1, which is based on dogtag 8.1, it supports RHEL5.8, and in RHEL6, pki-ca 9.0.3 was included without the other 5 subsystems, could you show me the consideration why RHCS do not support RHEL6? Is RHEL6 not secure enough or some other reasons？ Regards. An Yang