During February 2025, Jesse Grabowski updated dependency management for the AllenDowney/pymc repository by raising the upper bound of the pytensor version from less than 2.27 to less than 2.28. He ensured this change was consistently applied across development, documentation, JAX, testing, and Windows environment configuration files, using YAML and TXT formats. This update maintained compatibility with new pytensor features and bug fixes, improving build stability and reducing upgrade friction for users and contributors. Jesse’s work demonstrated careful coordination and requirements hygiene, focusing on maintainability and forward-compatibility, though the scope was limited to a single feature without bug fixes.