Kasparov focused on enhancing the EruditorGroup/profi-design-system by addressing React 19 compatibility issues in UI components, specifically BottomSheet and Modal. He implemented nodeRef in CSSTransition to replace the deprecated findDOMNode method, ensuring smoother animation lifecycles and reducing potential runtime errors under React 19. Working primarily with JavaScript and TypeScript, Kasparov stabilized UI animations using react-transition-group, which improved the reliability and maintainability of the codebase. Although his contributions during the month centered on a single bug fix rather than new features, the work demonstrated a solid understanding of front-end development and proactive adaptation to evolving React standards.