In November 2024, Ace Haidrey focused on improving data correctness and stability for changelog queries in the rapid7/iceberg repository. He addressed a bug in the Iceberg Spark integration where queries with a start timestamp after the latest snapshot could return invalid data. Using Java and Spark, Ace implemented logic to ensure such queries now return empty results, preventing incorrect retrievals. He reinforced this fix with comprehensive regression tests, enhancing overall test coverage and traceability. His work demonstrated a methodical approach to quality assurance, emphasizing robust testing and clear documentation to support future development and maintain the reliability of changelog queries.