Ethereum’s planned Glamsterdam upgrade completed a rehearsal on Devnet-11 this week, where blocks were successfully confirmed under a new block-building rule set. The proposal would raise the block gas limit from 60 million to 200 million and add block-level access lists, a change designed to let nodes fetch data in parallel and validate unrelated transactions at the same time. The tradeoff is longer block data propagation, which is expected to increase from about 2 seconds to 9 seconds to accommodate larger blocks. In testing, the Nethermind execution client passed all 2,302 performance tests and processed 570.7 billion gas in 3 minutes and 15 seconds. Developers are targeting a Sepolia testnet deployment on Oct. 6, though the exact timing has not been finalized. The 200 million gas ceiling remains experimental and has not yet gone through adversarial stress testing.
Ethereum’s Glamsterdam upgrade completed a rehearsal on Devnet-11 this week and successfully confirmed blocks under a new set of block-building rules.
The proposal would lift the block gas limit from 60 million to 200 million. It also introduces block-level access lists, allowing nodes to fetch data in parallel and validate unrelated transactions simultaneously. To handle larger blocks, block data propagation time is expected to increase from about 2 seconds to 9 seconds.
During testing, the Nethermind execution client passed all 2,302 performance tests and processed 570.7 billion gas in 3 minutes and 15 seconds.
Developers are planning a deployment on the Sepolia testnet on Oct. 6, although the exact timing is still unconfirmed. The 200 million gas limit is still experimental and has not yet undergone adversarial stress testing.
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