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Ethereum’s Glamsterdam Test Receives Last‑Minute Patch Ahead of 200M Gas Capacity Boost
Ethereum
2026-10-06·CoinDesk

Ethereum’s Glamsterdam Test Receives Last‑Minute Patch Ahead of 200M Gas Capacity Boost

A core validator client rolled out an urgent update just hours before Ethereum’s Sepolia “Glamsterdam” test, which aims to lift block capacity to 200 million gas. The fix clears a critical roadblock, positioning the network for the next scaling milestone.

Last‑Minute Patch Saves the Day

Ethereum’s Sepolia testnet, nicknamed Glamsterdam, is poised for a dramatic capacity jump. The plan: raise the maximum gas per block to 200 million, a leap that could reshape transaction throughput for the mainnet.

Critical Client Update

Hours before the test, developers of one of the network’s primary validator clients pushed a hot‑fix. The update addressed a serialization bug that would have caused consensus failures under the new gas limits. By deploying the patch just before the scheduled trial, the client team ensured the test could proceed without a catastrophic fork.

What the Test Entails

The upcoming trial will push every block to the new ceiling, forcing miners, roll‑ups, and layer‑2 solutions to process far more data. Early simulations suggest a potential 30‑40% reduction in transaction latency once the protocol stabilizes.

Why It Matters to Builders

If the test validates the capacity increase, developers can start designing dApps that rely on higher throughput without resorting to external scaling solutions. For traders, the upgrade could lower gas fees during peak demand, improving the economics of on‑chain activity. The industry will be watching closely as the results roll out over the next week.

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Originally published on CoinDesk

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