Ethereum's Glamsterdam upgrade runs ~200M-gas Sepolia test
Ethereum's Glamsterdam upgrade activated on the Sepolia testnet on October 6, raising the block gas limit to 200 million gas — one of the largest capacity increases the network has tested on a live testnet. The rehearsal raised the processing budget more than threefold, though sampled blocks used less than half that allowance. A key validator client pushed a last-minute patch hours before the test to clear the way for the deployment.
- The upgrade brings built-in proposer-builder separation (ePBS), block-level access lists and gas pricing adjustments; mainnet timing is still to be confirmed.
- Developers warn that free test ether lets "fake" builders outbid real ones and withhold transaction payloads, which could stall the chain during testing.
- Client teams got about half the usual review time before the Sepolia deployment, adding pressure to the verification window.
Sources
- Ethereum’s Glamsterdam test runs near 200 million gas per block after upgradecoindesk.com ↗
- JUST IN: A key $ETH validator client pushed a last-minute patch hours before Sepolia's Glamsterdam test, which will raise the block gas limit to 200 million. The fix clears the way for one of Ethereum's largest-ever capacity increases on a live test network. https://t.co/hkGStZrJaBx.com ↗
- Ethereum’s Glamsterdam test gets last-minute fix before major capacity jumpcoindesk.com ↗
- LATEST: Ethereum's Glamsterdam upgrade activates on the Sepolia testnet on October 6, bringing built-in proposer-builder separation (ePBS), block-level access lists and gas pricing adjustments, with mainnet timing still to be confirmed. https://t.co/RxWqh4voV6x.com ↗
- Ethereum confirms Glamsterdam dates, but warns 'fake' builders could stall the chaincoindesk.com ↗
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