ole=none><a role=treeitem title="Install Istio in Ambient mode with Helm." href=/v1.21/docs/ops/ambient/install/helm-installation/>Install with Helm</a></li><li role=none><a role=treeitem title="Platform-specific prerequisites for installing Istio in ambient mode." href=/v1.21/docs/ops/ambient/install/platform-prerequisites/>Platform-Specific Prerequisites</a></li></ul></li><li role=treeitem aria-label="Upgrade Guide"><button aria-hidden=true tabindex=-1></button><a title="Upgrade guide for Istio Ambient me