Page https://validatedpatterns.io/patterns/multicloud-gitops/mcg-cluster-sizing/ links to 3.11 documentation in the > [System and environment requirements](https://docs.openshift.com/container-platform/3.11/install/prerequisites.html#hardware). link. Based on https://access.redhat.com/support/policy/updates/openshift_noncurrent the 3.11 has been out of full support since June 2022. A more contemporary OCP documentation should likely be linked.