Garmin Updates and Downloadshttp://www.garmin.comGarmin Updates and DownloadsGDU 4xx Cockpit Display (MS Windows Installer) 10.00 (October 20, 2026)http://www.garmin.com/support/agree.jsp?id=7129GDU 4xx Cockpit Display (Other Operating System) 10.00 (October 20, 2026)http://www.garmin.com/support/agree.jsp?id=8901G5 Electronic Flight Instrument (Other Operating Systems) 8.80 (October 20, 2026)http://www.garmin.com/support/agree.jsp?id=10354G5 Electronic Flight Instrument (Microsoft Windows Installer) 8.80 (October 20, 2026)http://www.garmin.com/support/agree.jsp?id=10360