Technical resources
Red Hat OpenShift 4.9 Is Now Generally Available
"With OpenShift 4.9, we have automated and streamlined access to Red Hat Enterprise Linux (RHEL) entitlements on OpenShift to make the entire RHEL content ecosystem easily accessible to developers when building images.
Important changes to OpenShift 4 minor version lifecycle.
Additional OpenShift 4 will change the lifecycle from the current version-based lifecycle policy to a timeline-based lifecycle of 18 months for all minor releases of OpenShift 4. This change will take effect with Red Hat OpenShift Container Platform version 4.7 and higher.