Box2D 3.1 Released

Version 3.0 was released about 8 months ago. It was a huge update and it needed some refinement. Version 3.1 addresses most of the bugs and build problems. It also introduces some new features and refinements.
Character mover I’ve added experimental character mover support to 3.1. This uses a geometric solver. It should be useful for games that want greater control than what you get with a dynamic or kinematic body.