Commonly referred to as GRASS, this is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization.
What's new in version 6.4.2-3
ReleaseMarch 17, 2012
Date AddedMarch 17, 2012
Operating SystemsMacintosh, Mac OS X 10.6, Mac OS X 10.7