GitHub has introduced two significant enhancements to its mapping capabilities: diff visualization for geospatial data and feature-level customizations. These improvements allow users to see changes in geospatial data over time, providing a visual representation of modifications in commits or pull requests, such as changes to congressional district boundaries. Additionally, GitHub now supports faster and more customizable mapping of geoJSON files, enabling users to specify properties like fill color or opacity directly within the file. The platform has implemented version 1.1.0 of the open simplestyle specification to support these customizations. These updates aim to enhance collaborative mapping efforts on GitHub, as highlighted by Ben Balter, Chief of Staff for Security at GitHub, who has contributed significantly to the platform's development and community engagement.