WebMux firmware version 11 introduces the Enhanced Dual-Boot Feature. This feature is a WebMux system safeguard that keeps a backup system image available for use. When a firmware update is performed, the old firmware and settings are saved as a backup. Generally, reverting back to the previous firmware version would not be necessary. However, should the need arise, the Enhanced Dual-Boot Feature provides a mechanism for our customers to quickly revert back to the previous firmware version without needing to re-flash the firmware.
If a failed firmware update attempt renders the WebMux unit unbootable. The Enhanced Dual-Boot Feature ensures that a bootable image is available for fast recovery. Unlike other WebMux features, this is one feature that we hope you would never need to use under normal circumstances.