Developers must update tools relying on hardcoded gas limits ahead of Ethereum’s Glamsterdam upgrade to avoid disruptions.
The Ethereum Foundation has warned that wallets, indexers, and gas estimators may fail due to gas-model changes in the upcoming Glamsterdam upgrade. Tools using a hardcoded maximum gas limit will require updates to remain functional.
Glamsterdam introduces a separate state-gas dimension for operations creating new state, altering transaction cost calculations. A plain ETH transfer to an existing account will still cost 21,000 gas, but transfers to new accounts will incur an additional state-gas charge. The upgrade also includes proposer-builder separation and expanded contract size limits.
Developers are urged to test systems on the Plataberget testnet, launched on August 13, before the upgrade activates on the mainnet this Thursday. The changes will later deploy to Sepolia and Hoodi testnets.