Glamsterdam Ethereum
- Status
- Mainnet date not set. Testnets and devnets in progress.
- Date
- No date announced
Proposals that affect contracts
- EIP-7773 (meta)
- EIP-8037 state creation cost
- EIP-8038 state access cost
What it means
Two proposed gas repricings change what some operations cost. A contract whose calls rely on a fixed amount of gas may behave differently afterwards. The Ethereum Foundation replayed past transactions under the new prices and lists the contracts that appeared in at least one potentially broken transaction.
EIP-7773 status · Ethereum Foundation repricing checker
Base network upgrades (gas repricing) Base
- Status
- Base has not announced whether it will adopt these gas changes.
- Date
- No date announced
Proposals that affect contracts
- EIP-8037 (design for Base unresolved)
What it means
Base has published no decision and no date. Its public code repository shows design and test work, with the EIP-8037 design pull request closed without merging on 2026-10-29. A separate open pull request (not merged) stacks Ethereum's Amsterdam execution rules onto Base test work; the Base docs upgrade pages (checked 2026-11-09) mention no gas repricing. Until Base says more, treat the effect on Base contracts as unknown.
Base repository · EIP-8037 design pull request (closed) · Base upgrades overview
Contracts that appear in the Ethereum Foundation's Glamsterdam repricing list show an
Upgrade readiness line on agent pages. The list is a replay of past Ethereum mainnet
transactions under the proposed prices: a contract on it may behave differently after the upgrade, and a contract that is not
on it is not guaranteed to behave the same. Base has no such list. Check the
Ethereum Foundation checker for any Ethereum contract.
Free data: upgrade watch (JSON).