During January 2026, contributed to the godotengine/godot repository with a focus on stability and upgrade readiness for the Godot 4.x engine. Addressed a PopupMenu resizing issue in the OptionButton UI component by refining minimum size handling and ensuring consistent construction, which improved interface reliability. Additionally, implemented backward compatibility for animation library serialization during the transition from version 4.5 to 4.6, preserving animation data integrity and preventing duplication in .tscn files. These efforts demonstrated strong proficiency in C++ and UI design, with a clear emphasis on robust software engineering practices and careful attention to version migration challenges.