During November 2024, Fan Hu focused on stabilizing the release process for the OfficeDev/teams-toolkit repository. He addressed a critical issue by performing a Release Candidate rollback, reverting recent changes to restore the previous stable build and ensure release reliability. This work required careful build management and a strong understanding of Shell scripting to execute the rollback safely and efficiently. By prioritizing risk mitigation over feature delivery, Fan Hu maintained build integrity and protected the release timeline. The depth of this contribution lay in its focus on operational stability, demonstrating a methodical approach to managing complex build and deployment workflows.