Wire · technology
Ethereum's Glamsterdam Upgrade Passes Key Test Ahead of Sepolia Launch
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Fusion42 · 18 September 2026 · Fusion42 review
Ethereum's Glamsterdam upgrade passed critical testing on the Nethermind client, including block-building rule adoption and performance benchmarks, and is set for launch on the Sepolia public testnet on October 6. The upgrade raises the block gas limit from 60 million to 200 million, enabling higher transaction throughput and aims to increase capacity while managing node running costs.
This Wire brief sits within Fusion42's coverage of Crypto & Web3, and 2 sources have reported it between 17 Sep 2026 and 27 Sep 2026.
◆ ◆ The Wire takeaway
Ethereum node operators face a new performance bar as the block gas limit triples, changing transaction capacity and verification demands. You need to reassess node infrastructure and client compatibility well before the Sepolia testnet launch.
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2 sources · first reported 17 Sep 2026 · latest 27 Sep 2026
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