15</h1><p>Istio 1.1.15 patch release.</p></div><p class=post-author>Sep 16, 2019</p><div><p>We&rsquo;re pleased to announce the availability of Istio 1.1.15. Please see below for what&rsquo;s changed.</p><div class="relnote-actions call-to-action"><a class=entry href=/v1.17/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/isti