{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the factors affecting the upgrade of blockchain versions?","a":"Industry demand: The continuous expansion of blockchain application scenarios puts higher demands on system performance, usability, scalability, and other aspects. In order to meet these demands, developers will continuously optimize and upgrade blockchain protocols, thus  triggering version updates."}]}],"pr":"43c90cfee42a2024e80c9e61f823eedca9b75572ec5c22acd1f70a18d0256f19"}