The Glamsterdam upgrade is going to be something every DeFi and Ethereum builder should look at carefully. It touches block capacity, transaction processing, gas costs, validator operations, and staking rewards. In total, up to 18 EIPs are reshaping the network.
Where things stand right now:
Sep 14: Devnet-11, a private test network, went live.
Sep 16: Ethereum Foundation AMA on Reddit with protocol researchers.
Oct 6: Sepolia, Ethereum's public testnet, switches on the new rules.
Q4 '26: Mainnet