Ethereum sixth and seventh system-wide upgrades to be held today, on February 28. The code change will include two almost simultaneous updates called Constantinople and St. Petersburg, both of which will be implemented as hard forks of the Ethereum blockchain.
Updates should take place as soon as Ethereum reaches 7,280,000 units. The process itself is expected to begin at 19:15 UTC.
Constantinople upgrade has to increase the platform’s effectiveness, postpone the difficulty bomb and reduce the unit reward from 3 to 2 ETH. St. Petersburg is designed to remove the previous EIP 1283 update from the Ethereum test networks.