Earlier this week, the Ethereum Foundation announced that key community stakeholders have decided to postpone the hard fork of Constantinople due to the discovery of a security attack on smart contracts after the hard fork. This announcement was made hours before the network was updated, with the result that the Parity and Geth team released an emergency update to avoid canceling the update.
The foundation stated that all node operators, miners and exchanges were needed to upgrade to the new version or downgrade to the previous version. This announcement was rather unexpected on the part of the community as the Rinkeby Testnet, which took place on January 9, 2019, was declared successful, unlike the Ropsten Testnet, which led to a three-way fork.
This time, the vulnerability was detected by ChainSecurity, in which the team revealed that smart contracts are vulnerable only after the fork of Constantinople and not before. The update of the network would allow the Reentrancy attack, which at the moment is not possible due to the high gas limit. However, it would be possible after the update because EIP 1283 proposes the reduction of the gas necessary for the operations of SStore.
The delay in the fork has also led some members of the community to appreciate the quick measure taken by Foundation members to avoid the fork in a short interval, while others were unhappy that the team had noticed hours of vulnerability before update or concluded that the community was centralized.
To add, if it had not been for the Reentrancy attack, the update would have occurred earlier today on block n. 7080000. At present, the details of the next hard fork program and the block on which it would occur would have been decided during the next core dev meeting of Ethereum, which would take place towards the end of the week.
There are speculations related to the hard fork that makes its rounds on the market. Some members of the community believe that the difficult fork will take place on January 21, 2019, Monday. However, one of Ethereum's key developers, Afro Schoedon, said the next hard fork will take much longer.
He said on Twitter:
"It's not happening on Monday, I do not know who sowed it, it's more like 2-6 weeks."
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