sh and ZSH. Both of these scripts provide support for the currently available <code>istioctl</code> commands.</p><div><aside class="callout tip"><div class=content><code>istioctl</code> only has auto-completion enabled for non-deprecated commands.</div></aside></div><h2 id=before-you-begin>Before you begin</h2><p>We recommend you use an <code>istioctl</code> version that is the same version as your Istio control plane. Using matching versions helps avoid unforeseen issues.</p><div><aside class="callout tip"