Ethereum developers set January date for Constantinople upgrade

Core developers plan to activate Constantinople, one of Ethereum's largest upgrades to date, on January 16, 2019.  The upgrade aims at increasing the efficiency of the Ethereum blockchain while decreasing the mining rewards from 3 ETH to 2 ETH per block. Constantinople was originally planned for release in November of this year. However, issues on the testnet release forced developers to delay the upgrade. (Source: CoinDesk)