CentOS 7.7 has been released this week.Please note that CentOS 7.7 is not supported for oVirt 4.2 and older releases.
If you want to upgrade to CentOS 7.7 please upgrade to oVirt 4.3 too.
Thanks,
--
Sandro Bonazzola
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
Red Hat EMEA
sbonazzo@redhat.com
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