Please refer to the release notes.
Full Image - Rev A1
WT41N0 Avalanche OS Update Package Rev A1 Software for Touch & Non-Touch
Full Image - Rev A
WT41N0 Wavelink Avalanche Update Package Rev A Software for Touch & Non-Touch (Downgrade)
WT41N0 Wavelink Avalanche Update Package Rev A Software for Touch & Non-Touch (Maintain)