A bug that chain-split ethereum’s Ropsten testnet has been identified and fixed within hours. As it was guessed, it had something to do with a new Ethereum Improvement Proposal (EIP) that adds efficiency gains to gas calculations with only Parity seemingly affected. “The bug has been fixed. It affects parity and aleth, which we had the same bug,” Wei Tang, a Rust developer at Parity told Trustnodes, with aleth being a C++ eth client. “I fixed the sstore refund saturating_sub bug and confirmed that it indeed computed the same state root as geth.” Tang publicly said around midnight London time before adding: “I guess ... (full story)