g-istio-v1-18-1-v1-17-4-and-v1-16-6-security-releases/15864>announcement</a>.</p><div class="relnote-actions call-to-action"><a class=entry href=/v1.25/news/releases/1.18.x/announcing-1.18/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/1.18.1 data-downloadbuttontext="DOWNLOAD 1.18.1" data-updateadvice="Before you download 1.18.1, you should