What's ReCaptcha V2?
If you aren't aware of it already, ReCaptcha helps combat email and form spam by attempting to identify humans from bots. The downside is that no human enjoyed filling in ReCaptchas, which leads to form abandonment. Version 2 of ReCaptcha utilizes smarter algorithms to identify humans with less work on the part of the human. If filling out a ReCaptcha could be considered work, that is.
That said, the new ReCaptcha certainly looks nicer:
New ReCaptcha V2
As you can see the new one's much nicer.
How do I get it?
Follow the instructions in the ReadMe and you'll be well on your way to stopping spam, but in a nice, futuristic, artificial-intelligence-laden way. Vive la MODX!