SoftNAS Buurst recommends the best practice of creating a snapshot of your current machine image state before applying any updates. This should allow you to roll back to our previous SoftNAS configuration/version by restoring the snapshot if necessary. The below links will help you to create the required snapshots.
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For VMware and Veeam:
https://www.veeam.com/documentation-guides-datasheets.html?ad=menu-resources
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