November 2025 performance summary for mxcube/mxcubecore: Delivered Beamline Actions Enhancements that introduce a temporary deactivation directive and full YAML configuration support, enabling safer operation and easier configuration management. Key changes were shipped under commit dac86920f451723aba7669b91c4b90f9fe18b66f, featuring readability improvements, shorter logging lines, and a read-a-pure YAML config workflow. No major bugs fixed this month; instead, the focus was on stability and configurability improvements that reduce operational risk and improve reproducibility. Business value includes safer beamline control, faster configuration onboarding, and clearer operational logs. Technologies demonstrated include Python-based configuration processing, YAML-centric configuration, structured logging improvements, and a feature-flag style directive (disabled) with a false default to preserve existing behavior.