eitem title="Important changes operators must understand before upgrading to Istio 1.2." href=/v1.7/news/releases/1.2.x/announcing-1.2/upgrade-notes/>Upgrade Notes</a></li><li role=none><a role=treeitem title="Details the Helm chart installation options differences between Istio 1.1 and Istio 1.2." href=/v1.7/news/releases/1.2.x/announcing-1.2/helm-changes/>Helm Changes</a></li></ul></li></ul></li><li role=treeitem aria-label="1.1.x Releases"><button aria-hidden=true></button><a title="Announcements for the