PyBullet is receiving regular updates, you can see the latest version here: https://pypi.org/project/pybullet
Installation and update is simple:
pip install -U pybullet
A while ago, Our RSS 2018 paper “Sim-to-Real: Learning Agile Locomotion For Quadruped Robots” is accepted! (with Jie Tan, Tingnan Zhang, Erwin Coumans, Atil Iscen, Yunfei Bai, Danijar Hafner, Steven Bohez, Vincent Vanhoucke).