During October 2024, Lin Zhan focused on security maintenance for the monte-carlo-data/apollo-agent repository, addressing a vulnerability by upgrading the certifi package across three separate dependency lists. This targeted update, implemented through careful dependency management, improved the project’s security posture without introducing any functional changes. Lin’s work involved analyzing and updating requirements files written in plain text, ensuring that the new certifi version resolved the identified risk while maintaining release hygiene. By prioritizing security and future maintainability, Lin demonstrated a methodical approach to dependency management, contributing to reduced production risk and streamlined ongoing maintenance for the Python-based codebase.