---
title: Upgrade Istio
linktitle: Upgrade
description: Upgrade, downgrade, and manage Istio accross multiple control plane revisions.
weight: 25
test: n/a
---

{{< warning >}}
Upgrading across more than two minor versions (e.g., `1.6.x` to `1.9.x`) in one step is not officially tested or recommended.
{{< /warning >}}