About upgrading and migrating
When you want to use the enhanced functionality of IBM® DevOps Test UI (Test UI), you must upgrade to the latest version of the product software.
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If you installed Test UI that is earlier than 11.0.9, then you cannot upgrade the product to the latest version. You must uninstall the existing version of the product before you install the latest version of the product.
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After you install Test UI 11.0.9, at any point in time if you want to use the previous version of the product, you cannot roll back to the previous version. If you want to use the previous version of the product, you must uninstall the existing version, and then install the required version of the product.