IGEL OS 11.03 IGEL OS Articles Current: Update and Upgrade PDF Download PDF Download page Update and Upgrade. Current page Include child pages All pages Update and Upgrade Upgrading UDC3 or UD Pocket from IGEL OS 10.06 to IGEL OS 11 via Universal Firmware Update Upgrading from IGEL OS 10 to IGEL OS 11 Buddy Update Firmware Update Updating IGEL OS Using a USB Storage Device Updating the Firmware using the Linux Console ×