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Ethereum’s Glamsterdam Upgrade Activates on Sepolia

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 06/10/2026, 14:27:25 UTC.

Briefings

The Ethereum Glamsterdam Upgrade activated on Sepolia, marking the first two upgraded epochs. Early blocks began a gradual gas-limit climb from 60 million toward a 200 million client target. This transition represents a significant shift in network efficiency and cost structures for the testnet.

Key points

• The Ethereum Glamsterdam Upgrade activated on Sepolia, marking the first two upgraded epochs.
• Early blocks began a gradual gas-limit climb from 60 million toward a 200 million client target.

Context

This upgrade represents a critical transition in Ethereum's testnet infrastructure, shifting from a fixed 60 million gas limit to a dynamic 200 million target. The activation on Sepolia provides the first real-world data on this new gas model.

Limitations

Evidence is limited to the first two upgraded epochs and early blocks. The full gas-limit climb trajectory remains unverified beyond the initial 60 million baseline.

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