May 2006 and followed up by Release 7x in the next three months. Release 7.00 introduced direct support for Oracle Spatial (vector drawings, raster images and raster surfaces) and included concurrent multiuser editing capability for Oracle and a variety of other databases, including DB2 and Microsoft SQL Server. 7.00 introduced multiprocessor support with multithreaded rendering of image libraries, multithreaded connections to DBMS providers and use of multiple processors in other areas as well. 7.00 also introduced the Manifold Image Server interface API, allowing users to create modules that enable usage within Manifold of image servers such as Virtual Earth, Google Maps, Yahoo, Ask and others. Open source image server modules have been published by the user community in both 32-bit and 64-bit versions that enable automatic fetching and tiling of either satellite images or street map images from various image servers. Release 8.00 was issued in the summer of 2007. 8.00 expanded support for direct use of spatial DBMS beyond Oracle to include IBM DB2 with Spatial Extender, PostgreSQL / PostGIS and pre-releases of Microsoft's SQL Server 2008 spatial product available in 2007. 8.00 also introduced a Manifold-written spatial extender for Microsoft SQL Server 2005 as well as generic spatial DBMS capability from Manifold enabling spatial DBMS storage of vectors and rasters in any DBMS providing binary storage capability. 8.00 was updated through 2008 to improve support for PostgreSQL/PostGIS, to support final production releases of Microsoft SQL Server 2008 and to support new Windows releases through Windows Server 2008 x64. In December 2015 Manifold.net announced that Manifold's parallel database engine for OEMs, Radian, would be the foundation for future releases of Manifold System GIS, and provided a road map for Radian Studio and Manifold Release 9 implementations in 2016. Beta testing for Radian commenced in 2016 with a first release of Radian Studio in February 2017. A series of updates for 8.00 were issued in 2017 to add integration with ODBC access to Radian data sources. This gave Release 8 the ability to connect, through Radian, to any data source Radian can use, expanding Release 8 connectivity to data sources 8.00 previously could not access, such as MrSID, ESRI file geodatabases, numerous GDAL/OGR sources and similar. Manifold Viewer, a free version of Radian Studio was issued in June, 2017. Viewer included all features of Radian Studio except printing, scripting, export, writing of projects, and GPU parallelism, although including CPU parallelism.