During March 2026, Wentao Zhang focused on maintaining data accuracy for the illinois-cs241/illinois-cs241hub.io.git repository, addressing a critical issue in the staff roster. Zhang identified and resolved a bug where the teaching semester for a staff member was incorrectly recorded, which could have led to scheduling and communication errors. By updating the staff YAML configuration, Zhang ensured that the information reflected the correct semester, supporting reliable semester planning. The work demonstrated careful data management and change tracking, with clear commit labeling for auditability. Zhang applied skills in YAML and repository management, delivering a targeted fix with minimal risk to production data.