Yibin worked on the apache/arrow-rs repository, focusing on enhancing the RowFilter API by exposing its internal predicates through new public accessor methods. Using Rust and applying strong API design principles, Yibin implemented predicates and into_predicates functions, allowing users to inspect and consume filter predicates directly. This change improved the usability and observability of RowFilter, making it easier for downstream developers to debug and compose advanced queries. The work demonstrated attention to code readability and Rust module ergonomics, aligning with goals to increase openness and reusability. Over the month, Yibin delivered one feature and addressed integration workflows.