Libra2.0白皮書2020年4月最新發布！共29頁 This updated white paper outlines the significant work we have done on the design of the Libra payment system since June 2019. Four key changes have been made to address regulatory concerns that deserve specific attention, each of which is addressed briefly below and then in more depth in the updated white paper: 1. Offering single-currency stablecoins in addition to the multi-currency coin. 2. Enhancing the safety of the Libra payment system with a robust compliance framework. 3. Forgoing the future transition to a permissionless system while maintaining its key economic properties. 4. Building strong protections into the design of the Libra Reserve.