lnote-actions call-to-action"><a class=entry href=/v1.10/news/releases/1.1.x/announcing-1.1/upgrade-notes/><h5>BEFORE YOU UPGRADE</h5><p>Things to know and prepare before upgrading.</p></a><a class="update-notice entry" data-title="Update Notice" data-downloadhref=https://github.com/istio/istio/releases/tag/1.1.15 data-downloadbuttontext="DOWNLOAD 1.1.15" data-updateadvice="Before you download 1.1.15, you should know that there's a newer patch release with the latest bug fixes and perf improvements." data-u