{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the necessary conditions for the process of blockchain version upgrade?","a":"Technical Research and Development: The development team needs to research and develop the new version, including improving protocols, optimizing algorithms, and fixing  vulnerabilities, to ensure that the upgraded blockchain system is more stable and secure."}]}],"pr":"f690eb65b2471d6198352e3793fca5cbd315407e2a1445dd1f08e2e6da113737"}