Peng Wang developed stable row ID support for the lancedb/lance repository, focusing on robust JSON serialization and improved discoverability. He implemented PyRowIdMeta methods for converting to and from dictionaries, enabling stable row IDs to be serialized and deserialized reliably in Python. By updating FragmentMetadata to use these new methods and exposing the has_stable_row_ids property in Python, Peng streamlined the process of identifying stable row IDs without manual inspection. He expanded test coverage to ensure round-trip integrity and property validation, leveraging both Python and Rust. This work enhanced data stability and simplified downstream analytics by reducing debugging complexity.