The total block reward for ZEN will be halved from 12.5 ZEN to 6.25 ZEN when the block height reaches 840,000, which is estimated to happen on December 2, 2020 UTC. The portion of the ZEN block reward miners receive will be halved from 7.5 ZEN to 3.75 ZEN.

Please take this into consideration when planning your mining activities, as your revenue from mining ZEN will be reduced.