During August 2025, Zhou upgraded Supabase and PyJWT dependencies in the langgenius/dify repository, focusing on enhancing security and compatibility across the backend. Zhou implemented automated integration tests using Python to ensure end-to-end reliability with the new versions, emphasizing robust API integration and backend development practices. The work addressed potential regressions in authentication and data access flows by proactively managing dependencies and expanding test coverage. By integrating these upgrades with continuous integration workflows, Zhou improved the maintainability and security hygiene of the codebase. This foundational work established a reliable platform for future enhancements and demonstrated depth in dependency management and testing.