During September 2025, this developer contributed to the onvif/specs repository by designing and implementing the ONVIF Mirror Attribute for Horizontal Video Flip, enhancing interoperability and control for video streams. The work involved defining new schema elements in XML to support horizontal flipping, as well as updating documentation to clarify how the new mirror attribute interacts with existing rotation and PTControlDirection features. By focusing on schema definition and precise, commit-driven changes, the developer ensured downstream clients could consistently implement the new feature. No major bugs were addressed during this period, with efforts concentrated on feature delivery and documentation improvements.