Product upgrade and migration
When you want to use the enhanced functionalities of Rational® Performance Tester, you must upgrade to the latest version of the product software.
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You can upgrade to Rational® Performance Tester 10.2.2 from 10.2.0 or later versions only.
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If you installed Rational® Performance Tester that is earlier than 10.2.0, 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 Rational® Performance Tester10.2.2, 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.