Sepolia, a second Ethereum test network (testnet), replicated staked ether (ETH) withdrawals successfully today, pushing the Ethereum blockchain closer to the much awaited Shanghai Upgrade. The upgrade began at epoch 56832 at 4:04 UTC, and with the Shanghai Upgrade, Ethereum will finally become a fully operational proof-of-stake network, allowing validators to cash out rewards they have earned by adding or approving blocks to the blockchain.