During May 2025, Olivier Giniaux focused on improving memory management in the ClickHouse/clickhouse-cs repository. He addressed a memory leak in the EnumerableExtensions Yield method by ensuring arrays rented from ArrayPool<T>.Shared were properly returned when no elements were yielded. This C# patch reduced unnecessary memory retention and lowered garbage collection pressure, particularly benefiting streaming and high-load scenarios. By refining resource management in the yield path, Olivier enhanced runtime stability and throughput for memory-constrained environments. His work demonstrated a strong grasp of C# development, memory management, and resource optimization, delivering a targeted fix that improved the reliability of streaming operations.