protocol
Zcash Zebra 4.5.0 patches P2SH sigop bug that risked chain split
Zcash Foundation ships Zebra 4.5.0 plus a 4.5.1 hotfix, closing 15 advisories including a critical P2SH disabled-opcode sigop undercount that could split the chain.
Stories tagged: #protocol
protocol
Ethereum Foundation ships Kohaku Railgun SDK alpha-22 with ERC-4337 relaying
The Kohaku privacy SDK landed @kohaku-eth/railgun v0.0.1-alpha.22 on May 26 — brotli compression, ERC-4337 mempool relaying operational. Tornado Cash and Privacy Pools modules still in dev.
protocol
Ethereum activates Pectra at epoch 364032 — EIP-7702 ships
Pectra went live on Ethereum mainnet on May 7, 2025. Eleven EIPs ship together; EIP-7702 gives EOAs temporary contract code, EIP-7251 raises the validator effective-balance cap to 2048 ETH.