During October 2025, Misiug worked on enhancing the debug logging system in the oap-project/velox repository. He replaced all instances of std::cout with LOG(INFO) for debug messages, standardizing the approach to logging and improving both readability and consistency across the codebase. This C++ refactor focused on observability, laying the groundwork for future improvements in logging levels and structured tracing. While no major bugs were addressed during this period, Misiug’s work emphasized code maintainability and cross-team alignment. His efforts in debugging and logging established a more robust foundation for future development and performance optimization within the Velox project.