Supported Versions for Upgrade

Arcserve UDP 9.1 provides upgrade and backward compatibility according to the following rules:

• Arcserve UDP 9.1 supports upgrade from Arcserve UDP version 9.0, 8.1, 8.0, and 7.0 Update 2.
• If you are using UDP 7.0 or an older version, first upgrade to an intermediate version such as UDP 8.x or UDP 9.0 before upgrading to UDP 9.1.

For more information, see How to Upgrade License of Arcserve UDP .