Jacques Lucke writes:
A new version of the Animation Nodes (AN) addon is out! For those how don't know what AN is, it is a node based visual scripting system designed for motion graphics in Blender.
For version 1.6 we implemented many new features and improved old ones in many different areas of the addon.
Most notably are some UX improvements, animation baking and enhanced tools for developers. Furthermore there are many new nodes to play with, but also ways to reduce the amount of nodes needed for certain effects.
- Release Notes
- Download (Use the "Download ZIP" button; make sure that you uninstall old versions before the installing AN v1.6)
You can ask questions on blender.stackexchange.com using the animation-nodes tag or in the BlenderArtists thread of the addon: http://blenderartists.org/forum/showthread.php?350296-Addon-Animation-Nodes
I you find bugs, please report them here.
The manual still doesn't contain a lot of information, but I suggest you check out the external links at the bottom anyway.