In Ethereum news today, the Glamsterdam upgrade has raised Sepolia’s tested block-gas limit from about 60 million to nearly 200 million, giving the network more room to process activity before users compete for block space.
But this is a public-testnet rehearsal, not a mainnet upgrade, and gas measures computational work rather than a fixed number of transactions. The key question is whether Ethereum can expand capacity without placing unacceptable demands on the computers that validate it.
According to official reports, the change was activated on Sepolia on Tuesday, October 6, and blocks were produced under the higher limit by Thursday, October 8.
Ethereum’s mainnet has no activation date for Glamsterdam. The Glamsterdam Sepolia rollout, therefore, reflects testing progress, not a confirmed change to the live network.
Ethereum News: Why 200 Million Gas Does Not Mean Three Times the Transactions
Gas is the unit Ethereum uses to measure the computing work required to process transactions. A larger block allowance can accommodate more transactions, which may ease competition for space during periods of high demand, though it doesn’t guarantee lower fees, as users still compete for capacity.
The Glamsterdam upgrade changes gas consumption for various tasks, so increasing the block budget doesn’t necessarily mean processing more transactions.
Simple transfers and complex smart contracts require different computational resources, and raw transactions per second don’t equate to gas per block.
This upgrade modifies how Ethereum handles block production and data access by integrating the roles of transaction assemblers and validators, giving validators more time to verify transactions.
Blocks will now include a list of affected accounts and stored data, allowing for more efficient data fetching and transaction validation.
Additionally, Glamsterdam changes the costs of creating and accessing stored data, which could require developers to retest their contracts and tools in light of the new gas costs. These adjustments are part of Ethereum’s broader strategy to enhance capacity while maintaining practical network operation.
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Early Blocks Show Headroom, Not a Full-Capacity Stress Test
Ethereum’s Glamsterdam Test Hits a Massive Capacity Boost
Ethereum’s (@ethereum) ethereum:native Glamsterdam upgrade is now running on Sepolia with a processing limit near 200 million gas.
This is more than three times the previous limit of roughly 60 million. The higher budget… pic.twitter.com/jQuaqeJCPu
— BSCN (@BSCNews) October 8, 2026
CoinDesk analyzed over 25 consecutive Sepolia blocks, each using 52 million to 92 million gas, which is 26% to 46% of the allowance. None approached the maximum capacity, which could strain network computers.
During a separate six-minute voting period, Sepolia produced all 32 scheduled blocks, with 99.97% of eligible stake voting for finality.
While these results indicate successful block production and voting, they do not confirm that validators can sustain near-200 million gas blocks or that this would be safe on the mainnet.
Glamsterdam aims not only to increase the block budget but also to improve transaction processing efficiency and adjust data-handling costs.
Ethereum’s Scaling Race With Solana, BSC, and Avalanche Heats Up
In other Ethereum news, the test feeds into a broader Layer-1 scaling competition that includes Solana, BNB Chain, and Avalanche. But those networks use different designs and capacity measures, so you can’t directly compare their headline throughput claims to Ethereum’s gas per block.
The Solana slot-time approach shows why latency and Ethereum’s computational gas budget describe different things. For Ethereum, the immediate goal is more room for payments and trades while testing changes to how transactions are processed, and data is accessed.
The Sepolia blocks sampled so far used less than half their allowance. That makes the result a demonstration of headroom, not proof that the network is already processing near-200-million-gas blocks at full load.
The next evidence point is Hoodi, which is tentatively planned for October 27 pending the Sepolia results. Developers have not set a mainnet activation date, and the Sepolia figures do not establish a specific increase in transactions per second or prove safe, sustained operation at the new limit.
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