During February 2025, Luan Fujun focused on improving UTF-8 encoding support in the luanfujun/uv repository by addressing a critical bug in the Windows activation script. He enhanced the activate.bat script using Windows batch scripting and environment management techniques, ensuring the code page was set to 65001 before assigning environment variables. This adjustment resolved failures related to non-ASCII environment variables and paths, improving reliability for virtual environments on Windows. By linking the fix to relevant issues and committing the changes with traceability, Luan demonstrated careful attention to maintainability and regression prevention, though his contributions were limited to bug fixing during this period.