Highlights
Mesa 3.3.1 is a maintenance release focused on bug fixes and documentation improvements following the major 3.3.0 visualization update.
This release addresses two critical visualization bugs affecting PropertyLayers on HexGrids and property layer data mapping across both Altair and Matplotlib backends.
The documentation received several important updates, including fixes to tutorial code examples, a new guide for Google Summer of Code contributors, and improved organization of the documentation structure. The migration guide has been updated to reflect the deprecation of the old agent_portrayal parameter in favor of the new AgentPortrayalStyle introduced in Mesa 3.3.0.
We're excited to welcome six new contributors to the Mesa project in this release! Thank you to everyone who contributed bug fixes, documentation improvements, and test coverage enhancements.
What's Changed
🐛 Bugs fixed
- Fix visualization error for PropertyLayers on HexGrids. Add tranpose … by @flucco in #2868
- Fix: Property layer data mapping for both Altair and Matplotlib backends by @Sahil-Chhoker in #2869
- Fix: AgentSet initialization should not require explicit random number generator by @verisimilidude2 in #2789
🔍 Examples updated
- Fix missing variable g in the tutorial by @pazmiller in #2849
📜 Documentation improvements
- fix broken link in example by @BigTurtle8 in #2847
- Docs: Fix ValueError in tutorial by adding default value to MoneyModel by @pragam-m25 in #2871
- Add guide for GSoC contributors by @colinfrisch in #2873
- Deprecate
agent_portrayaland update Migration guide by @Sahil-Chhoker in #2872 - Docs: List overview separate from tutorials by @dhiraj-143r in #2878
🔧 Maintenance
- ruff fixes in visualization by @quaquel in #2867
- [pre-commit.ci] pre-commit autoupdate: Update to ruff v0.13 by @pre-commit-ci[bot] in #2840
- Tests: Add test for InputText in UserInputs by @pragam-m25 in #2870
New Contributors
- @BigTurtle8 made their first contribution in #2847
- @pazmiller made their first contribution in #2849
- @flucco made their first contribution in #2868
- @pragam-m25 made their first contribution in #2870
- @dhiraj-143r made their first contribution in #2878
- @verisimilidude2 made their first contribution in #2789
Full Changelog: v3.3.0...v3.3.1
