Vitalik Buterin: The "optimistic estimate" will be completed by the end of the year

At the Ethereum Global Summit on the second day, Vitalik Buterin said that the roadmap has become more pragmatic in many aspects as the merger approaches. The long-awaited upgrade "optimistic estimate" will be completed by the end of this year. For the merger, the most significant compromise is that the new Pos chain will not contain the transaction data of the old chain, and the old chain will be named the execution chain. At the same time, the beacon chain that introduces Pos into the Ethereum network will be named the consensus chain. After the merger, the execution chain will be in the consensus chain. He believes that this design is to make the merger easier and smoother.

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