October 6 activation Network: Sepolia testnet Time: 13:53:36 UTC, October 6, 2026 Mainnet and Hoodi: Dates remain undecided in the official deployment schedule. The Ethereum Foundation’s anno
October 6 activation
Network: Sepolia testnet
Time: 13:53:36 UTC, October 6, 2026
Mainnet and Hoodi: Dates remain undecided in the official deployment schedule.
The Ethereum Foundation’s announcement gives Sepolia operators a deadline to update their software and application teams a network on which to test the changes. Ordinary ETH holders have no upgrade action to take for this activation.
Glamsterdam prepares Ethereum to handle more work while changing the charges for some operations. The public test will let developers check whether applications still execute correctly and estimate fees accurately under those rules.
The effect depends on the transaction. Creating an account, deploying contract code or adding storage leaves information that Ethereum’s nodes must retain. Glamsterdam changes the gas charged for that work, as well as for accessing existing records.
EIP-8037 increases and separately accounts for state creation costs. EIP-8038 updates charges for reading and writing stored information. An application that creates substantial new storage will therefore face a different cost profile from a simple payment.
For a plain ETH transfer to an existing ordinary account, the current transaction-gas specification keeps the charge at 21,000 execution gas. That measures the work charged to the transaction. The amount paid still depends on the price of gas when it is submitted.
Ethereum’s fee documentation explains that the final charge depends on gas consumed and the price per unit, with demand influencing pricing. More capacity can reduce competition for space, while higher charges for particular operations can increase their gas consumption. A claim that Glamsterdam will make every transaction cheaper would overlook that distinction.
Increasing capacity also increases the work nodes must perform. They need to receive transaction data, check it and maintain Ethereum’s records. Glamsterdam addresses the time available for those checks and how client software organises access to the data.
Specialised builders already choose and arrange transactions for many validators. Enshrined proposer-builder separation, or ePBS, moves the commitment, delivery and payment mechanism for that relationship into Ethereum’s protocol.
A validator proposing a block selects a builder’s commitment to supply particular transaction data. The builder then supplies that data. Separating consensus checks from execution checks gives validators more time to verify it, while the protocol handles payment for the exchange.
Block-level access lists record the accounts and storage touched during execution, together with the resulting values. Client software can use that record to load data in parallel and organise compatible validation work in parallel.
The list is produced from execution data and must be checked. It helps nodes identify dependencies between transactions; it does not predict their effects before the builder executes them. The performance improvement depends on how clients implement these capabilities.
These changes create room for greater execution capacity. Gas repricing addresses the accompanying database burden: allowing more activity is easier to sustain when operations that create or access stored data are charged in proportion to their resource demands.
Consider a contract that gives an internal operation a fixed amount of gas. If that operation becomes more expensive, it may exceed the allowance and fail. Giving the overall transaction more gas does not necessarily change a limit written into the contract itself.
This is why testing needs to go beyond checking whether the network activates successfully. A wallet may need to revise its estimate, while a contract with a hardcoded allowance may require a different fix.
The Foundation’s repricing impact analysis replayed historical mainnet transactions under the proposed gas schedule. In the transactions tested, the large majority produced unchanged outcomes. Some affected transactions completed after the supplied gas limit was increased. A smaller group remained potentially broken even with a substantially higher limit.
Developers can use the Foundation’s affected-contract search to investigate addresses and failure types. Teams maintaining wallets, transaction services and node tooling also need to update gas estimation rather than rely on cached cost assumptions.
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A successful activation will show that clients follow the new rules together. The application testing that follows will show whether wallets estimate fees correctly and affected contracts operate reliably. Both are necessary before the proposed scaling improvements can deliver a dependable service to mainnet users.
The post Ethereum Sets October 6 for Sepolia Upgrade – What Will Change? appeared first on Coindoo.
