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Over the last few years a number of significant improvements have been made to GRASS. A new topological 2D/3D vector engine and support for vector network analysis were added. Attributes are now managed in SQL-based DBMS. The NVIZ visualization tool was enhanced to display 3D vector data and voxel volumes. Messages are partially internationalized (i18N) with support for FreeType fonts, including multibyte Asian characters. GRASS is integrated with the GDAL/OGR libraries to support an extensive range of raster and vector formats, including OGC-conformal Simple Features. A new display manager and integration with QGIS (http://www.qgis.org) result in improved ease of use.