Someone mentioned this elsewhere, so I looked at www.humblebundle.com and it's legitimate and not a hooky Pirate version.
You have about 4 more hours to get yourself a full version of the previous version of Vegas Pro 14 Edit ( Pro 15 has been out a few months now), plus 9 other programs.
Magix evidently decided that virtually giving away about 150,000 serial numbers at peanuts was worth it to get a few future upgrades, much as FXHome does with Hitfilm Express.
Don't delay, it integrates with Hitfilm to allow you to use both together and is an absolute bargain. Give yourself a late Christmas Present.
I'll re-edit this in a few hours when the time is up.