In under three hours, Ethereum forks a testnet and almost nobody is watching. Glamsterdam activates on Sepolia at 18:53 PKT. Epoch 353,024.

The important piece is enshrined proposer-builder separation. The handoff between specialized block builders and validators gets written into the protocol instead of running through outside middleware. Alongside it: block-level access lists, so clients can read state from disk and validate parts of a block in parallel, and a gas pricing overhaul that charges closer to what data access actually costs.

The number that matters came from the private rehearsal on Sept 17. Block gas limit pushed toward 200 million. No lost finality. That is Ethereum proving it can fit much more activity into each block before mainnet ever feels it.

Hoodi is penciled in for Oct 27. Mainnet has no date yet. And looking past this one, Vitalik said Sunday that Hegotá in 2027 could be the last routine fork before development shifts toward STARKs and quantum-safe cryptography.

L1 capacity is quietly the story of this cycle. Watching it.

$ETH #Glamsterdam