Which command shows the current cluster version and available updates?

In IBM Cloud Pak for Integration (CP4I) v2021.2, which runs on OpenShift, administrators often need to check the current cluster version and available updates before performing an upgrade.

The correct command to display the current OpenShift cluster version and check for available updates is:

oc adm upgrade

This command provides information about:

The current OpenShift cluster version.

Whether a newer version is available for upgrade.

The channel and upgrade path.

A. update – Incorrect

There is no oc update or update command in OpenShift CLI for checking cluster versions.

C. adm update – Incorrect

oc adm update is not a valid command in OpenShift. The correct subcommand is adm upgrade.

D. upgrade – Incorrect

oc upgrade is not a valid OpenShift CLI command. The correct syntax requires adm upgrade.

Why the other options are incorrect:

Example Output of oc adm upgrade:$ oc adm upgrade

Cluster version is 4.10.16

Updates available:

Version 4.11.0

Version 4.11.1

OpenShift Cluster Upgrade Documentation

IBM Cloud Pak for Integration OpenShift Upgrade Guide

Red Hat OpenShift CLI Reference

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References: