1.22.0

Major API change: done -> termination and truncation, matching Gymnasium's new API.
The dependency gym has been switched with gymnasium, which is maintained.

What's Changed

• replace 'done' with 'termination, truncation' new logic by @5cat in #802
• Update new Render API by @younik in #800
• fix wrapper unwrapped thing by @jjshoots in #808
• Update Sphinx theme by @mgoulao in #804
• Update security permissions for GitHub workflows by @andrewtanJS in #809
• Updated Waterworld by @BolunDai0216 in #807
• Docs API Update by @WillDudley in #810
• Gymnasium dep by @WillDudley in #814

New Contributors

• @5cat made their first contribution in #802
• @younik made their first contribution in #800

Full Changelog: 1.21.0...1.22.0

1.21.0

What's Changed

1. As part of the Gym update to 0.26, the following change has been made:
   • done -> termination and truncation: The singular done signal has been changed to a termination and truncation signal, where termination dictates that the environment has ended due to meeting certain conditions, and truncation dictates that the environment has ended due to exceeding the time/frame limit.
2. Butterfly/Prospector, Classic/Mahjong, Classic/Doudizhu, Classic/Backgammon, Classic/Checkers has been pulled.
3. Some QOL improvements for development, such as moving pyright to pre-commit and enforcing pydocstyle.
4. Massive website upgrade.

List of Changes

• Fix concatvecenvs to work in proper process by @jjshoots in #763
• Fix RPS render issue by @jjshoots in #776
• Reduces the number of warnings by @pseudo-rnd-thoughts in #777
• Pull Prospector by @jjshoots in #779
• Remove a bunch of envs by @jjshoots in #781
• Potentially fix 13 lines so it doesn't take >6 hours to run by @jjshoots in #782
• Move Pyright to pre-commit + add pydocstyle by @kir0ul in #737
• Update pre-commit config by @pseudo-rnd-thoughts in #787
• Update docs website to Sphinx by @mgoulao in #780
• Update links to the new domain by @mgoulao in #789
• Truncation Update by @jjshoots in #767
• Update Gym version by @WillDudley in #788
• More truncation fixes by @jjshoots in #796
• Update simple_env.py by @FilipinoGambino in #798
• Docs automation by @mgoulao in #790

New Contributors

• @pseudo-rnd-thoughts made their first contribution in #777
• @mgoulao made their first contribution in #780

Full Changelog: 1.20.1...1.21.0

1.20.1

Refer to the previous version (1.20.0) for list of changes, this version simply exists due to technical problems with publishing to PyPI.

1.20.0

What's Changed

• Black to pass master CI by @jjshoots in #734
• Refactor Pytest multiple calls to a single call by @kir0ul in #731
• Change MPE rendering to use Pygame instead of pyglet #732 by @WillDudley in #738
• Remove pyglet and buggy dependency in Multiwalker by @jjshoots in #739
• Add EzPickle to MPE by @jjshoots in #741
• Fix incorrect observation dict key in documentation by @bkrl in #743
• Temporarily remove waterworld from tests and also disable environment. by @jjshoots in #749
• Fix broken atari environment path by @manu-hoffmann in #747
• Complete Atari Envs path fix by @jjshoots in #750
• Correct MPE requirements to reflect PR #738 by @WillDudley in #748

New Contributors

• @WillDudley made their first contribution in #738
• @bkrl made their first contribution in #743
• @manu-hoffmann made their first contribution in #747

Full Changelog: 1.19.1...1.20.0

1.19.1

• Update Gym requirement version

1.19.0

• Streamlined all envs to have consistent folder structures
• Added info as output of reset to be consistent with new Gym API

1.18.1

• Massive overhaul to Knight Archers Zombies, version bumped
• Changed Atari games to use minimal observation space by default, all versions bumped
• Large bug fix to all MAgent environments, versions bumped
• MAgent environments now have Windows binaries
• Removed Prison environment
• Multiwalker bug fix, version bumped
• Large number of test fixes
• Removed manual_control with new manual_policy method
• Converted seed method to argument to reset to match new Gym API

(The PettingZoo 1.18.0 release never existed due to technical issues)

1.17.0

• Changed metadata naming scheme to match gym. In particular render.modes -> render_modes and video.frames_per_second -> render_fps
• Fixed bad pettingzoo import error messages caused by autodeprication logic

1.16.0

• KAZ: Code rewrite and numerous fixes, added manual control capabililty
• Supports changes to seeding in gym 0.22.0
• Fixed prison state space, bumped version
• Fixed battlefield state space
• Increased default cycles in api tests (making them catch more errors than before)
• Added turn-based to parallel wrapper
• Moved magent render logic to Magent repo

1.15.0

• Bug fixes to KAZ, pistonball, multiwalker, cooperative pong. Versions bumped.
• Removed logo from gather, version bumped.
• Added FPS attribute to all environments to make rendering easier.
• Multiwalker now uses pygame instead of pyglet for rendering
• Renamed to_parallel and from_parallel to aec_to_parallel and parallel_to_aec
• Added is_parallelizable metadata to ensure that the aec_to_parallel wrapper is not misused
• Fixed the API tests to better support agent generation