求翻译：If the software is an Update or Upgrade of a previous version of the software, you should be in the possession of a valid license to such a previous version, in order to be allowed to use the software. You are permitted to use the previous version of the software on your computer after you received the Upgrade or Update in order to help you with the transition to the Update or Upgrade, assuming that the Update or Upgrade is installed on the same computer and assuming you acknowledge that every obligation BenVista would have to lend support services in connection with the previous version is terminated when the Update or Upgrade becomes available and operational.是什么意思？

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