><use xlink:href="/v1.20/img/icons.svg#callout-tip"/></svg></div><div class=content>We strongly recommend you rotate root keys and root certificates annually as a security best practice.
We will send out instructions for root key/cert rotation soon.</div></aside></div></div><nav class=pagenav><div class=left><a title="Tools and guidance for evaluating Istio's data plane performance." href=/v1.20/blog/2019/performance-best-practices/ class=next-link><svg class="icon left-arrow"><use xlink:href="/v1.20/img/ic