{"reviewed":"2026-11-09","note":"Curated from official sources (EF blog, ethereum/pm, EIP-7773, ethereum/repricing-impact, base/base). Statuses change by hand when a source changes; the daily job only stamps 'last checked' and link reachability.","entries":[{"name":"Glamsterdam","chain":"ethereum","status":"Mainnet date not set. Testnets and devnets in progress.","date":null,"eips":["EIP-7773 (meta)","EIP-8037 state creation cost","EIP-8038 state access cost"],"affects_contracts":true,"impact":"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.","links":[{"label":"EIP-7773 status","url":"https://eips.ethereum.org/EIPS/eip-7773"},{"label":"Ethereum Foundation repricing checker","url":"https://ethereum.github.io/repricing-impact/"}]},{"name":"Base network upgrades (gas repricing)","chain":"base","status":"Base has not announced whether it will adopt these gas changes.","date":null,"eips":["EIP-8037 (design for Base unresolved)"],"affects_contracts":null,"impact":"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.","links":[{"label":"Base repository","url":"https://github.com/base/base"},{"label":"EIP-8037 design pull request (closed)","url":"https://github.com/base/base/pull/6090"},{"label":"Base upgrades overview","url":"https://docs.base.org/upgrades/overview"}]}],"last_checked":"2026-11-11T05:50:24Z","ef_dataset_generated_at":"2026-08-24T15:12:46Z","source_status":{"https://docs.base.org/upgrades/overview":"200","https://eips.ethereum.org/EIPS/eip-7773":"200","https://ethereum.github.io/repricing-impact/":"200","https://github.com/base/base":"200","https://github.com/base/base/pull/6090":"200"}}