You have never been able to upgrade Release Candidates to Release To Manufacturing versions. If you were, you would not need a previous paid version of Windows to perform the upgrade.
What does the 'upgrade' version of windows 7 entail?
Running beta of windows 7, looking to purchase. Don't have a copy of xp or vista, does that mean i can't buy the upgrade, and have to *cring* pay full price!?
You'll have to buy a full retail or OEM copy... no upgrade. You must have either Vista or XP to be eligible for the upgrade. OEM versions are usually priced about the same as the retail upgrade anyway... so you won't be spending that much more money. However, keep in mind that with OEM, it is not meant to be moved from one computer to another... it's meant to remain with that computer.