lation/>Customizing the installation configuration</a></li><li role=none><a role=treeitem title="Describes how to customize installation configuration options when installing with helm." href=/v1.21/docs/setup/additional-setup/customize-installation-helm/>Advanced Helm Chart Customization</a></li><li role=none><a role=treeitem title="Install and use Istio in Dual-Stack mode running on a Dual-Stack Kubernetes cluster." href=/v1.21/docs/setup/additional-setup/dual-stack/>Install Istio in Dual-Stack mode</a></