Ethereum's Constantinople hard fork was postponed on January 15, 2019, after ChainSecurity identified potential security vulnerabilities. The Ethereum Core Developers and Security Community are investigating the issues and will provide updates through official channels.
The Go Ethereum team released Geth 1.7 'Megara', featuring 125+ code contributions that prepare the network for the upcoming Metropolis hard forks, specifically Byzantium and Constantinople. This release focuses on laying essential groundwork for these major Ethereum protocol upgrades.
The Ethereum network is scheduled to undergo the Constantinople/St. Petersburg upgrade at block 7,280,000, expected around February 28, 2019. The exact timing may vary by 1-2 days depending on actual block production times.
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