# Firmware Lifecycle
# Change Log
UCM firmware version 1.1.2 release
Added Blowdown routine
Updated Cloud for Blowdown routine
Make sure you have physical access to the device before starting the update process.
After firmware upgrade the electrolyser must be powered off and turn back on.
# Compatibility Matrix
Please carefully check compatibility matrix for 1.1.2 version of the firmware with other firmwares
- C - fully compatible;
- NC - not compatible;
- PC - party compatible, check additional notes.
|Modbus Communication Backward Compatibility||C|
# Functionality Deprication Statements
# Modbus Compatibility
# Known Bugs List
The list below contains the most important problems in the firmware and their solutions.
MAC address of network card is set to 00:80:E1:00:00:01.
Solution: Update EL 2.1 firmware to version 1.2.1-fix2 or higher.