Thanks for your reply Keith.
This from CA support (Rain):
"...we do have a two-week money-back guarantee that covers you if there's some sudden change. New versions come out every 12-18 months, and the last release was in June last year (2024)."
So no automatic upgrade to the license unless it was purchased within two weeks prior to the release of a new Version, then the money-back guarantee may be seen as an upgrade path.