{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How should errors be handled during the process of upgrading a blockchain version?","a":"Immediately stop the upgrade process: Once an error is discovered, the upgrade process should be promptly suspended to prevent  the error from spreading and causing greater impact."}]}],"pr":"4ca1dddeeac0e0cc2e4b3795d06fe3ab44c0bebaf069446060d5400183745537"}