You can download the Bullet 2.85 release from github here: https://github.com/bulletphysics/bullet3/releases
Note this release was previously called 2.84, but due to serialization/version mismatch, it has been bumped up to 2.85.
Updated documentation will be added soon, as well as possible show-stopper bug-fixes, so the actual release tag may bump up to 2.85.x
Some of the features include:
- pybullet Python bindings, see examples/pybullet
- Virtual Reality support for HTC Vive and Oculus Rift using openvr see video (openvr only works properly on Windows, but Valve may support Linux and Mac in the future)
- Bullet Inverse Dynamics, thanks to Thomas Buschmann
- Inverse Kinematics, thanks to Samuel Buss and Yunfei Bai
Please enjoy, and expect improvements in future releases.