if in.cfg.ChainedCNIPlugin {
			installLog.Infof("Removing Istio CNI config from CNI config file: %s", in.cniConfigFilepath)

			// Read JSON from CNI config file
			cniConfigMap, err := util.ReadCNIConfigMap(in.cniConfigFilepath)
			if err != nil {
				return err
			}
			// Find Istio CNI and remove from plugin list
			plugins, err := util.GetPlugins(cniConfigMap)
			if err != nil {

			if revision != util.DefaultRevisionName {
				revisionWarning = ""
			}
			if icpTag < tag {
				p.Printf("%s Istio is being upgraded from %s to %s.\n"+revisionWarning+check,
					warnMarker, icpTag, tag)
			} else {
				p.Printf("%s Istio is being downgraded from %s to %s.\n"+revisionWarning+check,
					warnMarker, icpTag, tag)
			}
		}
	}
	return nil
}

// GetTagVersion returns istio tag version