{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the timing and criteria for determining the upgrade of blockchain versions?","a":"Business requirements: Blockchain version upgrades also need to consider the needs of actual business  scenarios. For example, different industries such as finance, supply chain, and Internet of Things have different performance and functionality requirements for blockchain technology. In order to meet these demands, developers will regularly upgrade the blockchain system."}]}],"pr":"3bf84e57000066aba11bac6cb6e08b99e9e7fd673fe41135c7cd62caf6691e6c"}