Ethereum Hard Fork Upgrades: 16 Without a Chain Split, Here Is How

Ethereum executed its 16th hard fork on May 7, 2025, upgrading the network to the Pectra release without any chain split. The update activated at epoch 364032 and was finalized about 12 minutes later with 88.5% validator participation, while processing transactions normally. The change modified 11 core rules, and the article notes that no user experienced downtime and no block was missed. It highlights that, unlike prior splits seen in 2016 and 2017, Ethereum has completed 16 protocol changes since 2015 with no unintended division. For validators, EIP-7251 raised the maximum effective validator balance from 32 ETH to 2,048 ETH, reducing the number of validator instances while increasing total staked ETH by 4.7 million to about $10.5 billion (at May 2026 prices). For users, EIP-7702 enables temporary smart-contract execution from a standard wallet address in a single transaction. For rollups, EIP-7691 increased blob targets from 3 to 6 per block and the ceiling from 6 to 9.