Version 0.16.5 is available upstream. Please consider updating! It seems that version 0.16.5 is available upstream, while the latest version in the Gentoo tree is 0.14-r1. You think this warning is false? Read more about it here.
ODE is a free, industrial quality library for simulating articulated rigid body
dynamics - for example ground vehicles, legged creatures, and moving objects in
VR environments. It is fast, flexible, robust and platform independent, with
advanced joints, contact with friction, and built-in collision detection.