SB3-Contrib v2.2.1

SB3 Contrib (more algorithms): https://github.com/Stable-Baselines-Team/stable-baselines3-contrib
RL Zoo3 (training framework): https://github.com/DLR-RM/rl-baselines3-zoo
Stable-Baselines Jax (SBX): https://github.com/araffin/sbx

Breaking Changes:

• Upgraded to Stable-Baselines3 >= 2.2.1
• Switched to ruff for sorting imports (isort is no longer needed), black and ruff version now require a minimum version
• Dropped x is False in favor of not x, which means that callbacks that wrongly returned None (instead of a boolean) will cause the training to stop (@iwishiwasaneagle)

New Features:

• Added set_options for AsyncEval
• Added rollout_buffer_class and rollout_buffer_kwargs arguments to TRPO

Others:

• Fixed ActorCriticPolicy.extract_features() signature by adding an optional features_extractor argument
• Update dependencies (accept newer Shimmy/Sphinx version and remove sphinx_autodoc_typehints)