Following the latest Ethereum news, the Glamsterdam upgrade raised Sepolia’s block-gas limit from about 60 million to nearly 200 million. The upgrade activated on the public testnet on Tuesday, October 6, and the sampled blocks were reported by early Thursday, October 8; Ethereum has not set a mainnet activation date.
This is not simply a higher ceiling. It is a test of how much additional block space Ethereum can make available while keeping larger blocks practical for the validators and nodes that process them.
The Glamsterdam Sepolia changes include updates to block production and validation, not just a larger gas limit.
Glamsterdam just went live on Sepolia, bringing ePBS and block-level access lists one step closer to mainnet.
This Nethermind node is following it with no separate consensus client, using a beacon chain plugin we’re still developing. pic.twitter.com/gmFla5pzDo
— Nethermind (@Nethermind) October 6, 2026
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Ethereum News: What Sepolia’s Early Blocks Show
Sepolia is a public test network where developers trial software using tokens with no real-world value before considering deployment on Ethereum. Gas measures the computing work required to process transactions. On the live network, users compete for block space when activity exceeds available capacity, which can push fees higher; a larger allowance could accommodate more payments and trades before that competition intensifies.
In CoinDesk’s sample, no block came close to filling the new allowance, leaving more than half of its nominal capacity unused. That demonstrates headroom, not sustained demand at the new ceiling. Nor does a limit more than three times higher mean three times as many transactions can fit in a block: Glamsterdam changes the gas costs assigned to particular operations, so transaction counts depend on what those transactions do.
A separate six-minute voting period produced all 32 scheduled blocks, while 99.97% of eligible testnet stake voted toward finality.
That observation concerns a distinct period from the block-usage sample and should not be read as evidence that the sampled blocks were near capacity.
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Ethereum Gas Limit: Capacity Depends on Infrastructure
Ethereum Gas Etherescan
More activity still increases demands on the computers running Ethereum, particularly if blocks regularly approach the larger allowance. The upgrade changes charges for creating and accessing stored data, linking the capacity test to the longer-term question of state growth. Developers have been told to retest applications that rely on particular gas costs. The Ethereum roadmap describes these processing and data-management changes as part of scaling while keeping hardware requirements manageable.
That infrastructure trade-off matters alongside block space: Ethereum’s node footprint shapes which operators can participate and how broadly validation can remain distributed, as discussed in coverage of Ethereum’s post-Merge infrastructure. Broader network activity also provides context for why a higher limit has not yet translated into consistently full blocks, as reflected in Ethereum network data.
The next public testnet milestone, Hoodi, is tentatively planned for October 27, pending Sepolia results. Based on the latest Ethereum news, no mainnet activation date has been set.
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Daniel Frances is a technical writer and Web3 educator specializing in macroeconomics and DeFi mechanics. A crypto native since 2017, Daniel leverages his background in on-chain analytics to author evidence-based reports and deep-dive guides. He holds certifications from The Blockchain Council, and is dedicated to providing “information gain” that cuts through market hype to find real-world blockchain utility.
