When clusters are not upgrading -->

In the cluster version 4.16.0 with CLI version 4.16.0 , "oc adm upgrade status" command resulted output "The cluster is not updating" , which is different than "oc adm upgrade" command . [This is an expected behaviour]

However in the cluster version 4.16.1 with CLI version 4.9.23 , "oc adm upgrade status" command gave the exact same result as "oc adm upgrade" command.

4.16.x

100%

1. Install OCP 4.16 cluster
2. Check client and server version : $ oc version
3. View the available updates : `$ oc adm upgrade`
4. Export environmental variable : $ export OC_ENABLE_CMD_UPGRADE_STATUS=true
5. Run : $ oc adm upgrade status

$ oc adm upgrade and $ oc adm upgrade status commands are showing same output while using 4.9.23 CLI version in OCP 4.16 cluster

$ oc adm upgrade and $ oc adm upgrade status should print the different output     

In the cluster version 4.16.0 with CLI version 4.16.0 , "oc adm upgrade" command output and "oc adm upgrade status" command output are different:-
$ oc version
Client Version: 4.16.0
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
Server Version: 4.16.0
Kubernetes Version: v1.29.5+29c95f3

$ oc adm upgrade
Cluster version is 4.16.0Upstream is unset, so the cluster will use an appropriate default.
Channel: stable-4.16 (available channels: candidate-4.16, candidate-4.17, eus-4.16, fast-4.16, stable-4.16)Recommended updates:  VERSION     IMAGE
  4.16.1      quay.io/openshift-release-dev/ocp-release@sha256:c17d4489c1b283ee71c76dda559e66a546e16b208a57eb156ef38fb30098903a

$ export OC_ENABLE_CMD_UPGRADE_STATUS=true
$ oc adm upgrade status
The cluster is not updating.

Also in the cluster version 4.16.0 with CLI version 4.15.0 , "oc adm upgrade" command output and "oc adm upgrade status" command output are different.

However,
In the cluster version 4.16.1 with CLI version 4.9.23 , "oc adm upgrade status" command gave the same result as "oc adm upgrade" command :-
$ oc version
Client Version: 4.9.23
Server Version: 4.16.1
Kubernetes Version: v1.29.5+58452d8

$ oc adm upgrade
Cluster version is 4.16.1Upstream is unset, so the cluster will use an appropriate default.
Channel: stable-4.16 (available channels: candidate-4.16, candidate-4.17, eus-4.16, fast-4.16, stable-4.16)
No updates available. You may force an upgrade to a specific release image, but doing so may not be supported and may result in downtime or data loss.

$ export OC_ENABLE_CMD_UPGRADE_STATUS=true
$ oc adm upgrade status
Cluster version is 4.16.1Upstream is unset, so the cluster will use an appropriate default.
Channel: stable-4.16 (available channels: candidate-4.16, candidate-4.17, eus-4.16, fast-4.16, stable-4.16)
No updates available. You may force an upgrade to a specific release image, but doing so may not be supported and may result in downtime or data loss.