From the official Next Limit Maxwell Render forum, in this post named "Behind the Scenes" you can enjoy, if you're a "render system's-fan" like me, a very large post with lots of test renders explaining the new fixes and improvements they made in version 2.
Congrats to Next Limit, this is absolutely a kickass rendering engine!
Spanish Company Next Limit, the creators of RealFlow, just released RenderKit
The RealFlow RenderKit is a set of tools that has been designed to facilitate the complex task of rendering RealFlow™ fluids. The RFRK enables you to generate procedural geometry at render time, and also render individual fluid particles. As a result, the RFRK will dramatically simplify and accelerate your RealFlow™ workflow..
Link: Official RealFlow RenderKit website
Via: Maxunderground.com