Ethereum Glamsterdam Upgrade
Ethereum Activates Glamsterdam Upgrade on Sepolia Testnet, Tripling Gas Capacity
Anonymous
Ethereum activated the Glamsterdam upgrade on its Sepolia public testnet on October 6, 2026, combining execution-layer and consensus-layer changes ahead of any mainnet decision. Its headline feature, protocol-level proposer-builder separation, divides block construction from proposing, while block-level access lists are intended to help nodes validate data more efficiently and support higher throughput. Sepolia’s gas limit was raised from about 60 million to 200 million, allowing more computation per block but increasing demands on node hardware; validators can opt in to the higher target. Just before the test, Prysm released an urgent client update so validators would use the intended 200-million setting rather than remain at 60 million. The testnet exercise is meant to assess capacity and stability, and no mainnet activation date or increase to 200 million has been announced.
Key Points
1
The Sepolia fork activated at 13:53:36 UTC at epoch 353,024. The upgrade combines Amsterdam execution-layer changes with Gloas consensus-layer changes.
2
The proposer-builder split is specified in EIP-7732 and is “enshrined” in the protocol, rather than relying on add-on software. Glamsterdam also includes gas repricings intended to better match the cost of certain operations to the work they require.
3
Prysm version 7.2.1 included the 200-million gas setting; validators on the prior release would otherwise have remained at 60 million unless operators manually changed the setting.
4
After Sepolia, the planned next testnet step is Hoodi. Before the Sepolia fork, operators were advised to update the relevant execution and consensus clients; stakers needed current beacon and validator clients to support the new ePBS functionality.
Sentiment
Mostly PositiveNEGATIVENEUTRALPOSITIVE
Publishers
13
Articles
3
Reach
16
A
AnonymousAuthor
