February 2025 monthly summary for dealii/dealii focusing on key accomplishments, major features delivered, and quality improvements. Delivered ParsedFunction default expression support by introducing a new input_expr parameter, adding an assertion on component counts, and implementing tests. Also completed code quality and documentation improvements, including code reformatting for readability, copyright year updates, and clearer test descriptions. No major bugs fixed this month; focus was on API clarity, robustness, and maintainability to support downstream users and contributor onboarding. Overall impact includes improved API expressiveness for ParsedFunction and better developer experience through cleaner code and documentation.