The Ethereum scaling upgrade Glamsterdam was activated on the Sepolia testnet on October 6 at 21:53 (UTC+8). Officially, the upgrade is positioned as an L1 scaling step after Fusaka. One of its core experiments is to raise the block processing budget from about 60 million gas to nearly 200 million gas—more than three times the original limit—to observe whether execution-layer and consensus-layer clients, as well as validators, can stably produce and propagate blocks under heavier loads. The mainnet activation date and the date for the subsequent Hoodi testnet have not yet been finalized.

On October 8, CoinDesk reviewed more than 25 consecutive test blocks and found that actual usage ranged from about 52 million to 92 million gas, equivalent to roughly 26%–46% of the limit, so the high-pressure range was not yet fully utilized. In a separate voting window of about six minutes, all 32 scheduled blocks were produced, and approximately 99.97% of eligible staked participation contributed to finalization (according to ethPandaOps browser data). The next public testnet, Hoodi, is tentatively scheduled for October 27, subject to the Sepolia results. The upgrade also introduces protocol-native enshrined proposer-builder separation (ePBS) and block-level access lists (BAL), and adjusts the gas pricing for state creation and access. Developers will need to retest contracts and tools that rely on fixed gas assumptions.

In the market, as of October 9 at 10:34 (UTC+8), $ETH was trading at around $2,479 on Binance Spot, down about 3.92% over 24 hours; $BTC was around $81,956, down about 1.48% over 24 hours.

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