The giveaway version is the latest 6.2 (built on Oct 17). You can use the full functions without time limits on use, but it does not support free upgrade to future versions. There are 200 licensed copies available for free every day. First come, first served.
How to get:
Head over to the page, enter a valid email address and then you can get the license code and setup of the program instantly by email.
What's new in V6.2:
1. Added support for iOS 12.
2. Fixed iTunes not recognizing iPhone, iPhone, or iPod after syncing.