Ethereum's Glamsterdam Upgrade Hits Sepolia Testnet Oct. 6
Ethereum's Glamsterdam upgrade is scheduled for the Sepolia testnet on Oct. 6, bringing major changes to block building and gas pricing.
Ethereum developers have confirmed October 6 as the launch date for the Glamsterdam upgrade on the Sepolia testnet, marking a key milestone before any mainnet deployment. The upgrade introduces several structural changes to how the Ethereum network processes and prices transactions, according to Cointelegraph.
At the heart of Glamsterdam are three significant technical changes: proposer-builder separation, block-level access lists, and a revamped gas pricing mechanism. Proposer-builder separation is designed to formally split the roles of those who propose blocks from those who build them, a move long discussed in Ethereum's development community as a way to reduce centralization risk and improve network efficiency.
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Block-level access lists would allow more granular control over which addresses and storage slots are pre-declared in a transaction batch, potentially reducing computational overhead and improving execution speed. The new gas pricing model is expected to refine how transaction fees are calculated, though specific parameters were not detailed in the announcement.
As of now, no mainnet date has been set for Glamsterdam, meaning the Sepolia testnet phase will serve as the primary proving ground where developers can stress-test the changes before committing to a broader rollout. Testnet deployments typically surface edge cases and bugs that inform final decisions about mainnet readiness, and Ethereum's core teams have historically taken a cautious approach to scheduling production upgrades.
The Glamsterdam upgrade represents another step in Ethereum's ongoing effort to improve scalability, decentralization, and fee predictability following the network's earlier transitions. Continue reading at Cointelegraph.
