Since the Mac App Store was released, a lot of us have been saying we’ll finally know if Apple is going to give us Upgrade Pricing when they have to release a new version of a Pro App. This morning, as Logic Pro X was released, I checked my App Store for an update, double checked the purchases tab, and found that Apple has used the strategy used by many other developers: they removed the old version and introduced a new version.
So there we have it: upgrade pricing is not coming. Stop expecting it to. Figure out other ways to get recurring revenue.
Update: David Smith has a more verbose explanation.