The Sepolia testnet Beacon Chain for Ethereum has launched, opening the door for a merger practice run that will give Ethereum network programmers essential technical data.
After combining with its dedicated Beacon Chain, the Sepolia testnet will start establishing consensus using proof-of-stake (PoS) rather than proof-of-work (PoW), providing evidence of what can happen when the mainnet merges.
The Sepolia merger’s precise date is still unknown. For Ethereum developers and standalone project developers to understand what to expect when the mainnet merges, testnet merges are necessary.
The ETH mainnet merging will result in the entire network migrating to PoS consensus, similar to the testnets, and should reduce ETH’s energy consumption by 99.9%.
Sepolia makes its debut in October 2021. Tim Beiko, a fundamental Ethereum engineer, said in April that the Ropsten testnet would be deactivated and eventually replaced by Sepolia. As a result, projects using Ropsten have been recommended to move to Sepolia to avoid difficulties.
Sepolia and Ropsten, for example, are public testnets that are designed to imitate the operation of their respective mainnets without causing any disruptions to the mainnet. The longest-running testnet, Ropsten, was launched in 2016. On June 8, it went through a merger trial run, which was the first of its kind for Ethereum.
The official mainnet merging date has been pushed back several times. It is presently scheduled to be completed by August 2022, though that timeline could be severely pushed back due to a concurrent delay in the difficulty bomb. When finished, it will produce the Consensus Layer, formerly known as Ethereum 2.0.
The difficulty bomb is an ETH network feature that disincentivizes miners that employ physical devices by significantly increasing the difficulty of producing a new block.