Ethereum's Pectra upgrade, the most significant since the Merge in 2022, went live on the mainnet with 11 improvements.Improvements include enhancing account abstraction, staking efficiency, user experience, and network scalability.Despite the flat price action after the upgrade, some are hopeful it could lead to an ETH price rally.Key upgrades in Pectra include improvements in user experience, staking efficiency, and doubling the throughput size for Layer 2 networks.