During September 2025, Maksim focused on improving the robustness of core storage components in the ClickHouse/ClickHouse repository. He addressed a potential out-of-bounds access issue in the system.tables storage by refining how index increments are handled after inserting default values during exception scenarios. This C++ system programming work enhanced the safety and correctness of system.tables queries, particularly under error conditions, contributing to the long-term reliability of data analytics workflows. Although no new features were released, Maksim’s efforts centered on bug fixing and code quality, demonstrating a depth of understanding in maintaining and stabilizing complex backend data systems.