Ethereum developers have issued an alert for L1 contract users on the mainnet ahead of the Glamsterdam upgrade scheduled for Q4 2026. This upgrade will include gas repricings (EIP-8037, EIP-8038) that will modify state creation and access costs. While most contracts remain unaffected, a small subset could break or degrade without prior updates. Gas prices for state operations have not been adjusted since the Berlin fork in 2021, and the new schedule is designed to support roughly a 3x increase in base throughput. Direct outreach to the most-affected builders is already underway.
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