Overview
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PDF of this doc site
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Upgrade by using ARL
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Use "system controller replace" commands to upgrade controller models in the same chassis
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![](https://docs.netapp.com/common/images/pdf-zip.png)
Collection of separate PDF docs
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Complete the upgrade in ONTAP 9.8 or later, or ONTAP 9.7 or earlier.
You must use the procedure for your version of ONTAP.
![Complete the upgrade](../upgrade/media/workflow_completing_upgrade_98_or_97x.png)