CoinScoopEthereum to Launch 'Glamsterdam' Upgrade on Sepolia Testnet October 6
The Ethereum Foundation announced that the 'Glamsterdam' upgrade is scheduled for the Sepolia testnet on October 6, 2026, at 20:53:36 ICT. This upgrade integrates execution and consensus layers to enhance Layer 1 performance through ePBS (proposer-builder separation) and BAL technologies. It also introduces a revised gas fee mechanism designed to reflect the actual storage costs incurred by nodes. While the testnet launch is a significant milestone, the schedule for the mainnet deployment remains unannounced.
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