@Kaden-Brilke If you have a previous version registered to your Magix customer account you can buy an upgrade which is simply the new full version but for a reduced price.

In case you want to upgrade to Vegas Post try to put it the basket and go to the checkout. You'll need to log in with your e-mail and password. The system will then automatically tell you if your account is eligible for the selected upgrade.

Also check out the official Vegas forum at https://www.vegascreativesoftware.info