Of course, the headline there is just a beginning point for a One Page Rules release. You know they can't just release one thing with their updates. They've got a new rulebook in the form of Age of Fantasy: Regiments, sure, but also some rules updates and a new miniatures.
From the article:
In today’s update we have a new rulebook, some important changes, and a new 3D model collaboration, but let’s not waste too much time and get right into it.