Updates to the front panel control firmware and the digital bus interface may be made available from time to time, either to fix bugs or add features. This firmware resides in flash memory and can be updated via the USB interface. Both pieces of firmware are updated from a single file. The current firmware versions can be checked from System menu or by using the *IDN? query from the remote interface. Two numbers are shown: the Main Control version number and then the Interface version number. (Note that a third number may also be shown which is not field updatable.)
This firmware is applied using the Firmware update utility linked to below which also includes a readme file with instructions.
Interface firmware version 1.06 adds LXI/LAN updates to fix mDNS network dropouts.