X6 premium subscription upgrades to X7?

I have X6 right now, no premium subscription.  Corel website is saying I can buy the premium subscription for $99 and describes the membership as enabling one to upgrade.  I remember before that a premium subscription allows one to upgrade to any future versions.  And it also states that on the link, from the menu item for About CorelDraw Membership.  

However, all the FAQ information is for CorelDraw 7.  Elsewhere, the upgrade price is listed at $199.   I remember the premium subscription was always $99.

So, what are my options to upgrade from X6 to X7?

 

I might not understand what the premium membership is either.  I know one gets new features as their are created, even though they may not be released.  Corel also describes it as that you will have access to the next major upgrade as long as your membership is active.  For example, if you subscribe 5 years, get upgrades, then unsubscribe, all major upgrades are reverted to your original purchase version?  However, corel also states that membership "upgrades to the latest version of CorelDraw" also.

 

I don't know if I am confused, or if Corel is making it unnecessarily confusing now that there is a new version out.

 

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