OpenEthereum "Shutdown", Ethereum Surges?
Ethereum launched the Berlin hard fork upgrade at block number 12,244,000. This upgrade paves the way for the upcoming Ethereum London hard fork, which will change the way Ethereum gas fees are charged by using the EIP-1559 proposal. Hard forks change protocol rules in a backward-incompatible manner. Therefore, they always come with considerable risk: in the worst case, the network will fork into two different chains, one following the old rules and another following the new rules. A more complex risk factor is that there are multiple execution components in the protocol.