I'm receiving the error "No more free upgrades available" when trying to activate Capture One. What does that mean and how do I activate the software?
This error indicates that your perpetual license is for an earlier version of Capture One and cannot activate the newer version you have installed. For instance, a perpetual license for Capture One 12 will not be valid for Capture One 21.
To get your upgrade, in that case, simply login to the upgrade store https://www.captureone.com/store/upgrade
There will be available options for the upgrade on the page. After you select one and proceed with the payment, you will then receive a new license key that you can use for the activation of the latest and the previous versions of Capture One.
Consider that a perpetual license is valid for the corresponding major version, so you can continue using the previous version for as long as you want to. A perpetual license upgrade is always optional.