{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why do we need to consider forward and backward compatibility when updating and adding new features to blockchain technology?","a":"Protecting user interests: Considering compatibility can ensure that users can still use the original functions normally after the blockchain system  update, avoiding losses in user rights and interests caused by technological upgrades. Meanwhile, forward compatibility helps to enhance user experience and encourages them to adopt new features."}]}],"pr":"376b7fe72eeb2fb9dc7e3175a0335c79ebd76f40bdd0d91c41eb24fb4172be7b"}