us in color!</p><p>Upgrading Istio has been improved as well, in several powerful ways. First, we
now support canarying of the Istio control plane itself. That means you can
install a new version of the control plane alongside the existing version and
selectively have proxies use the new one. Check out this
<a href=/v1.9/blog/2020/multiple-control-planes/>blog post</a> for more details on that.</p><p>We also have an <code>istioctl upgrade</code> command that will perform an in-place
upgrade in your clusters