During January 2026, Shuai Zhao focused on backend development for the Caideyipi/iotdb repository, addressing stability and resource management in session-based analytics. He refactored the session query execution process to use Python context managers, ensuring that resources were reliably released after each query. This approach mitigated memory-leak risks in the session pool, particularly under heavy usage scenarios, and improved the reliability of long-running IoT data queries. By enhancing the session lifecycle and demonstrating strong skills in Python and resource management, Shuai delivered a targeted bug fix that contributed to the overall robustness and maintainability of the backend system.