Later this week, Ethereum will release its newest testnet, Holesky, in a bid to enhance the ecosystem’s testing capabilities. Along with the new network, Ethereum will wave goodbye to its largest existing testnet, Goerli.
Currently, Ethereum has two testnets: Goerli and Sepolia. The networks are like copies of the original Ethereum blockchain, but they are used specifically for testing new applications and simulating transactions.
Goerli and Sepolia are operated by a smaller subset of “validators” than the main Ethereum chain, and some developers think these smaller validator sets pose a problem: “We don’t want to hit a scaling issue that could happen first on mainnet,” Parithosh Jayanthi, a