You can upgrade a running Cluster to any version using the command octops upgrade as follows:

octops upgrade <DOMAIN>

You can also explicitly set a kubeconfig file path as follows:

octops upgrade <DOMAIN> --kubeconfig </PATH/TO/CLUSTER/KUBECONFIG>

By default the command starts upgrading the Cluster to the latest version. You can set a specific version using the --version flag as follows:

octops upgrade <DOMAIN> --kubeconfig </PATH/TO/CLUSTER/KUBECONFIG> --version <VERSION>

Upgrading the Cluster is done from within the kubernetes cluster itself by starting Genesis as Kubernetes job to initiate the upgrade process. The whole operation should usually take a few minutes minutes depending on the performance and specs of the underlying kubernetes nodes.