During November 2025, Zheng Qu enhanced the ros2/rclcpp repository by developing a new overload for the get_parameter_or function, specifically targeting lifecycle nodes. This addition allows developers to specify default values when parameters are unset, streamlining parameter retrieval and reducing repetitive code during node lifecycle transitions. Zheng approached the task with a focus on maintainable API design and robust software development practices, utilizing C++ and the ROS 2 parameter system. The work improved reliability and usability in lifecycle workflows, with all changes subjected to thorough code review and testing, reflecting a strong emphasis on code quality and developer productivity.