pyDARN release v3.1 includes the following features: Full Cartopy coastline plotting options for all spatial plots NEW coastline keyword in method calls Full Cartopy integration for plotting in geographic coordinates for grid and fan plots Completed polar coordinate convection maps including reference vector and many customization options Improved ACF plotting New HALF_SLANT range estimation for RTP Bug fix Multiple fan plots now available on one axis Bug fix lowlat keyword now available for geographic coordinate plots Bug fix Colorbars now extend/don't extend as required along with many other minor improvements and bug fixes!