
Ropsten, the oldest Ethereum test network, recently shifted from proof-of-work to proof-of-stake. This merge seeks to optimize efficiency and make the network more eco-friendly.
What Happened: According to the Ethereum (CRYPTO: ETH) Foundation developer, the Ropsten Testnet effectively merged to proof-of-stake at 12 p.m. EST on Thursday, June 8. This merge was successful, despite minor bug issues that were consequently repaired. The primary function of the Ropsten testnet is to test upgrades to the blockchain before launching them on the mainnet, without risking any actual funds. Vitalik Buterin, co-founder of Ethereum, stated that the network will undergo two other testnet merges on Ethereum Sepolia and Goelri, prior to the mainnet merge.