# Firmware Lifecycle
# What's new?
# v5.1.7
- Bump version to align with UCM.
BugFix
- UCM stability improvements
# v5.1.6
Features
- Production limit to 60%
# v5.1.5
BugFix
- disabling start button on nonexistent LCD (which present on ELS500/1000) for EL2.0
# v5.1.4
Features
- EL2.0 Refilling Error in case water is below Low Level Sensor 10 minutes after refilling process started
- Always go into Water Level Sensor Error if water over Max Level Sensor
BugFix
none
# v5.1.3
Features
- Reset ramp-up restart counter after successful ramp-up
- Set 3 ramp-up tries, 1200 seconds each
BugFix
none
# v5.1.2
Features
- Additional timer for second fan during start-up
BugFix
none
# v5.1.1
Features
- Internal update – build process improvement, no changes in source code
BugFix
none
# v5.1.0
Features
none
BugFix
- Fixing dryer startup pressure to 1 bar instead of 0.5 bar (align with similar check in Electrolyser)
# v5.0.9
Features
- Improvements in SPI communication
BugFix
none
# v5.0.8
Features
none
BugFix
- Fix flash and dig outputs during under-voltage behaviour
# Functionality Deprecation Statements
None