Glamsterdam: Ethereum's Biggest Rewrite Since the Merge

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Glamsterdam locks in ePBS (EIP-7732) and Block-Level Access Lists (EIP-7928) among ten EIPs, with a Sepolia fork targeted around September 21, 2026 and mainnet activation expected in November. This course explains what each change actually does to block production, why decoupling consensus from execution buys nine seconds instead of two, and what it means for validators, builders, and anyone paying gas.