No. Once you buy a license for Diva, it is a perpetual license. You get all "point updates" (e.g., version 1.1 to 1.5) for free.
If you bought Diva second-hand, ensure the original owner completed an official license transfer through u-he support so the serial number is newly registered under your legal name. 5. The Dangers of Using "Free" Serial Numbers and Cracks u-he diva serial number and username
U-He Diva is one of the most respected software synthesizers in the music production world. Because it is a premium tool, users often have questions regarding how to manage their license, where to find their credentials, and how the authorization process works. where to find their credentials