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BREAKING: Ethereum's major Constantinople upgrade was delayed after blockchain audit firm ChainSecurity discovered a security issue with one of the changes.https://www.coindesk.com/ethereums-constantinople-upgrade-faces-delay-due-to-security-vulnerabilitySmart contract audit firm ChainSecurity flagged Tuesday that Ethereum Improvement Proposal (EIP) 1283, if implemented, could provide attackers a loophole in the code to steal user funds. Speaking on a call, ethereum developers, as well as developers of clients and other projects running the network, agreed to delay the hard fork at least temporarily while they assessed the issue.
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A new fork date will be decided during another ethereum dev call on Friday.