oVirt 3.6.3 has been released yesterday upstream [1]. Host packages are now available in testing repository [2] and will be released soon. You can find more information on how to test it in oVirt How To wiki page[3]
[1] http://lists.ovirt.org/pipermail/announce/2016-March/000237.html [2] http://buildlogs.centos.org/centos/7/virt/x86_64/ovirt-3.6 [3] https://wiki.centos.org/HowTos/oVirt