Once you have updated vSphere Namespaces, update the vSphere Plugin for kubectl.

The most recent version of the vSphere Plugin for kubectl downloads and installs the Tanzu Kubernetes cluster root CA certificate in the Kubernetes secret named TANZU-KUBERNETES-CLUSTER-NAME-ca. The plugin uses this certificate to populate the CA information in the corresponding cluster's certificate authority datastore. To download and install the vSphere Plugin for kubectl, see Download and Install the Kubernetes CLI Tools for vSphere. For more information about the TANZU-KUBERNETES-CLUSTER-NAME-ca secret, see Tanzu Kubernetes Cluster Secrets.