The revenue structure of the Bitcoin mining industry is undergoing significant changes. Analysis shows that miners have seen a significant increase in fee income from processing transactions. Last week, these fees exceeded the standard block reward, indicating a possible shift in the traditional way miners generate income. Typically, miner income comes from block rewards and transaction fees. In the past week, transaction fees accounted for about 30% of their total income, with this number dropping to 15% on December 24th. According to Glassnode data, the proportion of fees attributed to transaction fees is increasing. Additionally, if the trend of decreasing total miner income continues (partly due to the high cost of mining operations) and the proportion of fees attributed to transaction fees continues to increase, miners may increasingly support transaction fees.