[CR #401682] When you are upgrading from a version earlier than 15.0, Adaptive Server Enterprise does not correctly calculate the grace period, which results in a failed upgrade.
Workaround: Before performing an upgrade, make sure you have obtained suitable licenses from the Sybase Product Download Center (SPDC). Check your Adaptive Server Enterprise 15.0 installation to make sure that Adaptive Server Enterprise can obtain the required licenses. See Chapter 11, “SySAM Configuration,” in the configuration guide for your platform for more details.
