I just oprned Melodyne Studio 4 as a standalone and was notified that there is a update to download.
Here's some info from the Celemony page
"If you are downloading an upgrade
The installation program is personalized for you and contains all the current data for your license. Please download it and reinstall Melodyne from scratch, even though the installation program and the new Melodyne may have the same name as your previous edition.
If you have been using an iLok to activate Melodyne, you can continue to do so. First, however, you must transfer the new Melodyne activation to your iLok account. You will find all further information at
www.ilok.com"
Fred