Ethereum (ETH) developers confirmed the successful completion of the prerequisites — shadow forks — required for the highly anticipated blockchain upgrade, The Merge.
Shadow forks help developers stress test synchronization assumptions to ensure network safety during permanent upgrades. In light of The Merge, Ethereum developers implemented the first shadow fork on Apr. 11, 2022.
Nearly six months in, Ethereum research and engineering company Nethermind confirmed that the transition in Mainnet-Shadowfork-13 — the last shadow fork — was successful, signaling the readiness of the network for migrating to a proof-of-stake (PoS) consensus mechanism.
— Nethermind (@nethermindeth) September 9, 2022
The testnet allowed Ethereum developers to practice running nodes, deploying contracts and testing