By the end of 2025, the People's Bank of China issued the "Action Plan for Further Strengthening the Digital Renminbi Management Service System and Related Financial Infrastructure Construction," marking the official transition of the digital renminbi from "Digital Cash 1.0" to "Digital Deposit Currency 2.0." The core change is that starting from January 1, 2026, the digital renminbi wallet balance will begin to accrue interest, and its legal attribute will shift from a direct liability of the central bank to a statutory currency with the liability attributes of commercial banks. The common challenges faced by global CBDCs and the breakthrough of the digital renminbi: over 130 monetary authorities worldwide are exploring CBDC practices, but they generally encounter a difficult...