-custom/>External Authorization</a></p><p class=desc>Shows how to integrate and delegate access control to an external authorization system.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/blog/2021/migrate-alpha-policy/>Migrate pre-Istio 1.4 Alpha security policy to the current APIs</a></p><p class=desc>A tutorial to help customers migrate from the deprecated v1alpha1 security policy to the supported v1beta1 version.</p></div><div class=entry><p class=link><a data-skipendnotes=