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FIGR_HELOC $1.00Ethereum sets Glamsterdam upgrade for Sepolia on Oct. 6
Glamsterdam is scheduled for Oct. 6 on Sepolia at 13:53:36 UTC, while Hoodi and mainnet dates remain unset.
Key takeaways
- Sepolia only. The Oct. 6 activation applies to the Sepolia testnet, at epoch 353,024 and slot 11,296,768.
- Mainnet date unset. Developers have set no mainnet date, and Hoodi is only tentatively discussed for October 27.
- Hegotá follows in 2027. Developers are targeting 2027 for Hegotá, the upgrade expected to follow Glamsterdam.
What happened
Ethereum developers have scheduled Glamsterdam, the network's next major upgrade, to activate on the Sepolia testnet on Oct. 6 at 13:53:36 UTC. Sepolia node operators must update their execution-layer and consensus-layer clients before activation, the Ethereum Foundation said Monday.
The upgrade combines changes known as Amsterdam on Ethereum's execution layer and Gloas on the consensus layer. It adds enshrined proposer-builder separation through EIP-7732, which moves the relationship between block proposers and builders into the protocol. It also adds block-level access lists through EIP-7928 and revises gas pricing so it better reflects the cost of creating and accessing data.
The Oct. 6 activation applies only to Sepolia. Ordinary ETH holders and Ethereum mainnet users do not need to take action for the Sepolia upgrade, according to Crypto.news.
Why it matters
The testnet run moves Ethereum's next scaling package into public-network testing before a future mainnet rollout. Enshrined proposer-builder separation puts the payment between builders and proposers inside the protocol, which the Foundation says reduces reliance on trusted middleware for builder payments and separates consensus validation from execution validation. The official roadmap describes the upgrade as preparation for increased Layer-1 capacity.
Block-level access lists record the accounts and storage locations each block uses. Developers say this lets clients read state from disk and process parts of transaction validation in parallel. The gas pricing change may require changes for contracts that rely on fixed gas stipends or hardcoded gas limits, the Foundation said.
Developers are targeting 2027 for Hegotá, the upgrade expected to follow Glamsterdam. Ethereum co-founder Vitalik Buterin said Sunday that Hegotá could be the network's last routine fork before development shifts toward recursive STARKs, automated formal verification, optimized consensus and quantum-safe cryptography.
What the data shows
The Ethereum Foundation announced that Glamsterdam will activate at epoch 353,024 and slot 11,296,768. Hoodi remains tentatively discussed for October 27, while developers have not confirmed its activation. Developers have not set dates for rollout on Hoodi or on mainnet, so the Oct. 6 event applies only to Sepolia.
What is still unclear
- No mainnet activation date has been announced.
- Hoodi has been discussed for October 27, but developers have not confirmed its activation.
Questions readers ask
When is the Glamsterdam upgrade on Sepolia?
It is scheduled for Oct. 6 at 13:53:36 UTC. The Ethereum Foundation said it activates at epoch 353,024 and slot 11,296,768.
Do ETH holders or mainnet users need to do anything?
No. Ordinary ETH holders and Ethereum mainnet users do not need to take action for the Sepolia upgrade, according to Crypto.news.
What does Glamsterdam change?
It adds enshrined proposer-builder separation through EIP-7732 and block-level access lists through EIP-7928. It also changes gas pricing.
When will Glamsterdam come to mainnet?
No date is set. Hoodi is tentatively discussed for October 27 and its activation is not confirmed.
