During February 2025, Peiyu Yang focused on improving the stability and correctness of mutation processing in the scylladb/scylladb repository. Yang addressed a resource management issue by ensuring that mutation readers are reliably closed before writers are destroyed, reducing the risk of resource leaks and incomplete data processing under load. This was achieved by wrapping the writer in seastar::futurize_invoke, which guarantees the proper cleanup order in asynchronous C++ code. Although no new features were introduced, Yang’s work demonstrated depth in asynchronous programming and resource management, resulting in a more robust and maintainable codebase for high-throughput database operations.