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Bump sb3-contrib from 2.7.1 to 2.8.0#677

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Bump sb3-contrib from 2.7.1 to 2.8.0#677
dependabot[bot] wants to merge 1 commit intodevelopfrom
dependabot/pip/sb3-contrib-2.8.0

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@dependabot dependabot bot commented on behalf of github Apr 1, 2026

Bumps sb3-contrib from 2.7.1 to 2.8.0.

Release notes

Sourced from sb3-contrib's releases.

v2.8.0: Fix for MaskablePPO and markdown doc

Breaking Changes:

  • Removed support for Python 3.9, please upgrade to Python >= 3.10
  • Upgraded to Stable-Baselines3 >= 2.8.0
  • Set strict=True for every call to zip(...)

New Features:

  • Added official support for Python 3.13

Bug Fixes:

  • Fixed MaskablePPO and RecurrentPPO inaccurate n_updates counting when target_kl early exits the training loop
  • Fixed RecurrentPPO and MaskablePPO forward and predict not reshaping the action before clipping it (@​immortal-boy)
  • Do not call forward() method directly in RecurrentPPO (@​immortal-boy)
  • Fixed MaskableCategorical.apply_masking() crashing with ValueError: Simplex when cached probs deviate from sum=1 in float32 with large action spaces (torch 2.9+) (@​kirann-05)

Documentation:

  • Switched to markdown documentation (using MyST parser)

New Contributors

Full Changelog: Stable-Baselines-Team/stable-baselines3-contrib@v2.7.1...v2.8.0

Commits
  • 50d8a8f Release v2.8.0 (#328)
  • 300a5ed fix: clear cached probs in MaskableCategorical.apply_masking to avoid Simplex...
  • 6fa2410 Update contribution guidelines regarding LLM/code assistant usage (#327)
  • 75fff3a Fix n_updates logging in MaskablePPO and RecurrentPPO when using early stop...
  • ee23ad3 doc: switch to Markdown (MyST parser) (#324)
  • e03aa1e Add support for multi-dimensional action spaces to PPO variants (#318)
  • 06c6e62 Remove explict forward calls in RecurrentPPO (#320)
  • d67de80 Add Python 3.13 support, drop Python 3.9 (#319)
  • See full diff in compare view

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Bumps [sb3-contrib](https://github.com/Stable-Baselines-Team/stable-baselines3-contrib) from 2.7.1 to 2.8.0.
- [Release notes](https://github.com/Stable-Baselines-Team/stable-baselines3-contrib/releases)
- [Commits](Stable-Baselines-Team/stable-baselines3-contrib@v2.7.1...v2.8.0)

---
updated-dependencies:
- dependency-name: sb3-contrib
  dependency-version: 2.8.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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@dependabot dependabot bot added dependencies Pull requests that update a dependency file python Pull requests that update Python code labels Apr 1, 2026
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