Ethereum’s Sepolia testnet to trial 200 million block gas target with Glamsterdam upgrade on Oct. 6
AI Market Summary
Ethereum's Sepolia testnet will activate the Glamsterdam upgrade on Oct. 6, enabling a coordinated experiment to lift the block gas target toward 200M, though adoption depends on validators manually changing client settings. If participation is strong, higher execution capacity could reduce congestion and fee pressure during demand spikes, supporting DeFi throughput. The change is a testnet signal for eventual mainnet scaling plans rather than an immediate network-wide shift.
Impact level
● Medium
Affected assets
ETH/USDT-1.60%
AI Insight · ETH/USDTAI Insight
▲ Bullish
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Ethereum’s Sepolia testnet is set to gradually raise its block gas limit from 60M toward a 200 million target as part of the network’s Layer 1 scaling push. Prysm 7.2.0 and Teku 26.9.1 support the Glamsterdam upgrade, but validators must manually change settings for the new preference to take effect, so the realized limit will rise block by block rather than jump instantly. Ethereum’s block gas limit previously increased from 30M starting in February 2025 to 45M, and later moved to a 60M default after Fusaka client releases.
