If you have installed a previous version of OnCommand Workflow Automation (WFA), you can upgrade to the latest version of WFA to use the new features and enhancements.
If you are currently running WFA 4.1 or earlier versions of WFA, then you must first upgrade to either WFA 5.0 or 4.2 and then upgrade to WFA 5.1.
For example, if you created a backup on a system that is running WFA 4.2, the backup can be restored only to systems that are running WFA 4.2 or later.
You cannot install MySQL on your own when upgrading from versions earlier than WFA 4.2.
You can review the restored content for completeness in functionality—for example, you can check the functioning of your custom workflows.