The problem is that in 4.4 we're not serving extensions.Deployment so to reproduce this problem you need to use 4.3 oc against 4.4 cluster, with this fix 4.3 binary should work w/o problems.
[root@dhcp-140-138 ~]# oc -n openshift-ingress rsh deploy/router-default sh-4.2$ exit exit [root@dhcp-140-138 ~]# oc version -o yaml clientVersion: buildDate: "2020-03-28T08:12:50Z" compiler: gc gitCommit: 6a90d0a59b25a70c36a68ea00873f96fb6db0ef4 gitTreeState: clean gitVersion: openshift-clients-4.3.10-202003280552 goVersion: go1.12.12 major: "" minor: "" platform: linux/amd64
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:1262