{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What preparations do validators and operators need to make before performing a blockchain upgrade?","a":"Prepare upgrade tools and resources:  Validators and operators need to ensure that all necessary tools and resources for the upgrade are ready, such as compilers, deployment scripts, encrypted wallets, etc."}]}],"pr":"14b6875399530cb8789c2da0c4506820b07bc619011866bb73eb6cacb8ef3c65"}