0.25.1 Release Notes#

  • Added rendering for CliffWalking environment @younik

  • PixelObservationWrapper only supports the new render API due to difficulty in supporting both old and new APIs. A warning is raised if the user is using the old API @vmoens

Bug fix#

  • Revert an incorrect edition on wrapper.FrameStack @ZhiqingXiao

  • Fix reset bounds for mountain car @psc-g

  • Removed skipped tests causing bugs not to be caught @pseudo-rnd-thoughts

  • Added backward compatibility for environments without metadata @pseudo-rnd-thoughts

  • Fixed BipedalWalker rendering for RGB arrays @1b15

  • Fixed bug in PixelObservationWrapper for using the new rendering @younik

Typos#

  • Rephrase observations’ definition in Lunar Lander Environment @EvanMath

  • Top-docstring in gym/spaces/dict.py @Ice1187

  • Several typos in humanoidstandup_v4.py, mujoco_env.py, and vector_list_info.py @timgates42

  • Typos in passive environment checker @pseudo-rnd-thoughts

  • Typos in Swimmer rotations @lin826

Full Changelog: https://github.com/openai/gym/compare/0.25.0…0.25.1

Github Release: https://github.com/openai/gym/releases/tag/0.25.1