;s different between Istio 1.3.4 and Istio 1.3.5.</p><div class="relnote-actions call-to-action"><a class=entry href=/v1.6/news/releases/1.3.x/announcing-1.3/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/1.3.5 data-downloadbuttontext="DOWNLOAD 1.3.5" data-updateadvice="Before you download 1.3.5, you should know that there's a newer patch r