The Glamsterdam upgrade has now been activated on Ethereum’s Sepolia testnet!

The Glamsterdam upgrade has now been activated on Ethereum’s Sepolia testnet, marking an important milestone in the preparation for one of the network’s next major upgrades. As part of the Sepolia deployment, the gas limit is being increased from roughly 60M to 200M. That's more than a 3x increase. Glamsterdam also introduces several important protocol changes, including ePBS, block-level access lists, and changes to Ethereum’s gas model. These aren't just isolated technical upgrades. They are part of Ethereum's broader effort to increase L1 capacity while making the underlying architecture more efficient and scalable. The Sepolia activation is particularly important because major protocol changes need to be tested under realistic conditions before they can be considered for mainnet deployment. Testing at a significantly higher gas limit gives developers an opportunity to identify bottlenecks, unexpected behavior, and implementation issues before the upgrade reaches Ethereum itself. The next major step will be Hoodi, where the upgrade will undergo further testing. There is still no confirmed mainnet activation date for Glamsterdam, so there is plenty of work left before that happens.