Why so difficult to upgrade to the latest version?

I'm a subscriber of CorelDRAW 2019 and 244 days left.

I found Corel has released CorelDRAW 2020 this year, is Corel allows user to upgrade to 2020 from 2019?

If not, why they want to sell the version of the "subscription" to users?

If yes, why they haven't an application like Adobe's cloud desktop?

The Adobe Cloud Desktop application, users can have the latest version of the software and all updates/upgrade are automatic.

For the CorelDRAW, users are difficult to find a simple way to upgrade the software to the latest version. That will hard to compete with Adobe...