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Minor updates to downgrade instructions (#8381)

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Frank Budinsky 2020-10-28 13:49:35 -04:00 committed by GitHub
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content/en/docs/setup/upgrade/_index.md
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---
title: Upgrade Istio
linktitle: Upgrade
description: Upgrade, downgrade, and manage Istio accross multiple control plane revisions.
weight: 25
test: n/a

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content/en/docs/setup/upgrade/in-place/index.md
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@ -80,16 +80,17 @@ can be found in the `bin/` subdirectory of the downloaded package.
## Downgrade prerequisites
Ensure you meet these requirements before starting the downgrade process:
Before you begin the downgrade process, check the following prerequisites:
* Your Istio installation was [installed using {{< istioctl >}}](/docs/setup/install/istioctl/).
* The Istio version you intend to downgrade to is 1 minor version less than {{< istio_full_version >}}.
* The Istio version you intend to downgrade to is no more than one minor version less than the installed Istio version.
For example, you can downgrade to no lower than 1.6.0 from Istio 1.7.x.
* Downgrade must be done using the `istioctl` binary version that
corresponds to the Istio version that you intend to downgrade to.
For example, if you are downgrading from Istio 1.7 to 1.6.5, use `istioctl`
version 1.6.5.
corresponds to the Istio version that you intend to downgrade to.
For example, if you are downgrading from Istio 1.7 to 1.6.5, use `istioctl`
version 1.6.5.
## Steps to downgrade to a lower Istio version