Anthony Bellew updated the enrollment due date configuration in the ideacrew/enroll repository, shifting the submission deadline from the 18th to the 15th to better align with business requirements and reduce user confusion. He implemented this adjustment using YAML for configuration management, allowing the due date to be changed easily without modifying application code. This approach minimized deployment risk and enabled future tweaks to be made quickly through settings files. Over the month, Anthony focused on this single feature, demonstrating proficiency in configuration management and YAML, though the scope of work was limited and did not involve bug fixes or broader development tasks.