Update to v1.2.1 (#1453)

Add deformable_gym to third party environments (#1409)

Remove Mujoco assert on metadata render-mode (#1328)

Update version number to v1.1

Check that `MultiDiscrete.dtype` is not None (#1196)

Update vector env docs (#1053)

Fixed the description of Half Cheetah's observation space elements (#911

)

Fix `__getattr__` warning (#676)

Add deprecation warnings for features removed in Gymnasium v1.0 (#535)

Update the documentation for v0.28 (#405)