The 21,000 gas floor set a predictable transaction cost floor. It prevented spam and provided a reference point for fee estimation. But it also constrained protocol flexibility.
Popular wallets (MetaMask, Ledger, hardware wallets) hardcode the 21,000 minimum into their fee calculations. Those calculations will no longer work correctly when the upgrade activates.
Thousands of wallets, exchanges and applications must update before the change. Coordinated upgrades are difficult — some software may not receive updates, potentially confusing users about fee reliability.
Removing the floor allows future upgrades to lower base transaction costs and experiment with fee structures. But the immediate consequence is infrastructure churn and potential confusion.
Read More →