The ETHF network is expected to perform its Milan upgrade on block height 16,731,000, estimated to happen on 2023-03-19. After this upgrade, the block reward of ETHF will be reduced from 2 ETHF to 1 ETHF. Please take this into consideration when planning your mining activities as your revenues from mining ETHF might be reduced. For more information about Milan upgrade, please check out their Twitter and GitHub.