道易程需要一次升级。要求来Mint的dApp必须在其主合约的头部具有License及其版本号的声明：

address public constant SCC0_LICENSE_CONTRACT = 0x00000000000000000000000000000000000000000000000; // SCC0 License Master Contract address

uint8 public constant SCC0_VERSION = 1; // This contract uses SCC0 V1