Esoteric Software has made Spine 3.6 available. Spine is an animation tool for 2D animation in games. In the 3.6 release, the team focused on bug fixes and improving existing features, but they did manage to add a few major features, including:
Mesh Manipulation Tools
And more...including runtime enhancements and optimizations.
A free trial is available, but full versions are available for purchase. Learn more from their blog post.