According to Bitcoin Laws, U.S. Senator Cynthia Lummis re-introduced the Bitcoin bill to the Senate, and the previous 2024 version was shelved on the committee. The new version, like the previous version, proposes to purchase 1 million bitcoins within 5 years, but there are several key differences. The 2025 version of the Bitcoin Act sets out a stricter plan to buy 200,000 bitcoins per year (rather than the "maximum" of 200,000 in the 2024 version). The new version also reinforces the holding requirements, removing the exception provisions in the previous version regarding the repayment of federal debt instruments. The bill adds new terms to coordinate Bitcoin purchases with the Exchange Rate Stability Fund (ESF), which is not mentioned in the 2024 version. ESF is a reserve fund for the U.S. Treasury Department, with approximately $39 billion in assets, which the executive branch may use. In terms of gold revaluation, the new version explicitly stipulates that the proceeds from revaluation of the Federal Reserve gold are applied to the purchase of Bitcoin, while the 2024 version only includes these funds in general funds, which is a significant change.