I cannot seem to find any documentation as to whether or not 64-bit background geoprocessing is native to ArcGIS 10.2. Or, is a separate download and install required as in 10.1? There were rumors prior to the 10.2 release that 64-bit background geoprocessing comes pre-installed with the upgrade/download. Is there an authoritative reference on this subject? No relevant system information is available on my Arc Administrator configuration information.