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Pull requests: DLR-RM/stable-baselines3

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Pull requests list

Stop VecNormalize rewriting the observation space of the env it wraps LLM generated We do not accept LLM generated issues/PR, please tell your human
#2286 opened Sep 11, 2026 by DenisDrobyshev Loading…
1
Fix missing header when Monitor appends to a new file LLM generated We do not accept LLM generated issues/PR, please tell your human
#2283 opened Sep 4, 2026 by yurekami Loading…
8 of 16 tasks
1
Secure deserialization (.load()) by default
#2264 opened Jun 19, 2026 by araffin Member Loading…
8 of 16 tasks
1
20
docs: warn against using Gymnasium FrameStackObservation for image observations
#2258 opened May 27, 2026 by midhunxavier Loading…
7 of 16 tasks
Render initial state in evaluate_policy (Fixes #1692)
#2257 opened May 26, 2026 by midhunxavier Loading…
11 of 16 tasks
1
Add opt-in tanh squashing for DiagGaussianDistribution mean actions LLM generated We do not accept LLM generated issues/PR, please tell your human
#2249 opened May 5, 2026 by cgliner • Draft
8 of 16 tasks
Fix load path handling for zip files PR template not filled Please fill the pull request template
#2239 opened Apr 13, 2026 by Xenios91 Loading…
WIP: Beta distribution support for PPO
#2228 opened Mar 13, 2026 by araffin Member • Draft
16 tasks
1
1
Add PoolVecEnv support and update imports across the codebase
#2204 opened Dec 13, 2025 by drl-test Loading…
8 of 15 tasks
Add MPS Backend
#2203 opened Dec 13, 2025 by oursland • Draft
3 of 15 tasks
1
Add PAL to approximate Prioritized Experience Replay
#2199 opened Dec 5, 2025 by bilelsgh Loading…
6 of 16 tasks
3
Fix: Add close() method to BaseAlgorithm to prevent memory leaks Maintainers on vacation Maintainers are on vacation so they can recharge their batteries, we will be back soon ;)
#2193 opened Nov 19, 2025 by RPalmr Loading…
9 of 16 tasks
Add check_vecenv function for VecEnv validation similar to env_checker
#2178 opened Sep 26, 2025 by Copilot AI • Draft
1
@araffin
4
Add Custom FrozenLakePlus Environment with Dynamic Slipperiness and Training/Evaluation Scripts
#2148 opened Jun 16, 2025 by llDanieLll Loading…
use lerp for polyak updates
#2136 opened May 12, 2025 by ClashLuke Loading…
Optional BatchNorm integration in NatureCNN
#2132 opened May 6, 2025 by Mahsarnzh Loading…
12 of 16 tasks
Speedup handling of terminal observations
#2086 opened Feb 17, 2025 by araffin Member • Draft
16 tasks
Fix tests for mps support mac os
#2005 opened Sep 14, 2024 by deathcoder Loading…
50 of 61 tasks
4
Recalculate Returns and Advantages After Callback to Ensure Reward Consistency (common/on_policy_algorithm.py) PR template not filled Please fill the pull request template
#2000 opened Sep 7, 2024 by mhyrzt Loading…
4 of 16 tasks
4
Add precommit config yaml and fix typos automatically PR template not filled Please fill the pull request template
#1979 opened Jul 26, 2024 by cschindlbeck Contributor Loading…
2 tasks
5
proposed fix for RunningMeanStd overflow
#1954 opened Jun 29, 2024 by spiglerg Loading…
7 of 8 tasks
1
Weights only param
#1902 opened Apr 19, 2024 by markscsmith Contributor Loading…
11 of 16 tasks
2
Fix missing seed / option args in dummy and subproc vec_env resets during stepping
#1805 opened Jan 11, 2024 by npit Contributor Loading…
12 of 16 tasks
1
9
Prioritized experience replay
#1622 opened Jul 23, 2023 by AlexPasqua Contributor Loading…
7 of 16 tasks
1
42
Fix Framestack obs env_checker
#1574 opened Jun 26, 2023 by corentinlger Contributor Loading…
7 tasks
1
4
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