The GDS tools (foton, diaggui, awggui, diag, etc) have been updated to gds-2.17.1.1 to handle conversion of UTC to GPS times for the upcoming leap second. The leapsecs.dat file which dataviewer reads has also been updated, so dataviewer sessions started after the leap second should do the UTC to GPS conversions properly. This change affects Ubuntu 12.04, Ubuntu 14.04, and SL6 workstations.