Ethereum’s Glamsterdam Upgrade Will Change the 21,000 Gas Rule for ETH Transfers

Ethereum's upcoming Glamsterdam upgrade will change the long-standing assumption that a basic ETH transfer always requires 21,000 gas. The Ethereum Foundation has warned developers and infrastructure providers to update software that treats 21,000 gas as a fixed cost, a change that could affect wallets, blockchain explorers, and fee estimation tools. Currently, a standard ETH transfer consumes 21,000 gas regardless of whether the recipient is an existing account or a new one.