What Is EIP-1559 and How Did It Change Ethereum’s Fee Market?
EIP-1559 is an Ethereum improvement proposal that restructured the transaction fee mechanism. It introduced a 'base fee' that is algorithmically adjusted based on network congestion and is burned (removed from circulation).
Users can also add an optional 'priority fee' (tip) to incentivize miners/validators. This change made fees more predictable and introduced a deflationary pressure on Ether's supply.