Similar to how https://medium.com/cri-o/how-to-run-cri-o-1-9-10-with-openshift-container-platform-3-9-and-red-hat-enterprise-linux-7-4-c8ecf47c66b5 mentions oreg_url should be set, we should mention that this is required for cri-o on 3.9.
OCP 3.6-3.10 is no longer on full support . Marking CLOSED DEFERRED. If you have a customer case with a support exception or have reproduced on 3.11+, please reopen and include those details. When reopening, please set the Target Release to the appropriate version where needed.