The Constantinople hard fork — really a network upgrade — was scheduled to happen today (January 16) at block 7,800,000.
Instead the upgrade was postponed.
What are the technical reasons for the postponement?
Ethereum Stack Exchange is a question and answer site for users of Ethereum, the decentralized application platform and smart contract enabled blockchain. It only takes a minute to sign up.Sign up to join this community
Repricing SSTORE defeats the re-entrancy protection that the gas stipend is meant to provide. That would be a breaking change to some deployed contracts.
Hope it helps.