During April 2025, Ubuntu contributed to the COSC381-2025Winter/GradebookSystem repository by refining the user experience when editing non-existent grades. They enhanced error handling in Python, updating the system to display a clear message that directs users to the 'Add Grade' option instead of leaving them uncertain. This change aimed to reduce user confusion and potential support requests without altering the underlying API behavior. Ubuntu also updated the associated tests to ensure the new guidance was properly validated and regression coverage maintained. Their focused, traceable commit reflects a methodical approach to user-facing improvements and robust testing within the project.