Ethereum Foundation announced on November 6, 2026 that the upcoming Glamsterdam upgrade, comprising EIP-8037 and EIP-8038, will be postponed until identified invariant violations are resolved. Chainsecurity’s testnet audit revealed that the two EIPs alter gas pricing for certain operations and state-gas calculations, breaking eight key invariants that several projects depend on. The Foundation’s ACD team has therefore decided to delay the hardfork and hold off on the Hoodi fork until the issues are addressed. Work on the parallel Hegota upgrade continues unaffected. The Foundation has opened a repository detailing the eight invariants, offering explanations, examples, and prompts for developers to verify their own contracts. Projects that rely on these invariants are urged to audit and, if affected, to contact glamsterdam@ethereum.org. The delay underscores the importance of invariant checks in protocol upgrades and signals that projects must reassess gas-cost and state-gas assumptions before the next hardfork. The Foundation’s decision aligns with its commitment to security and coordinated upgrade timelines. For more context, see the OpenZeppelin Deploys Security Library on TRON, Expanding Trusted Tooling.
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