{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What preparations do validators need to do during the blockchain upgrade process?","a":"Learn new  protocols: During the upgrade process, the protocols of the blockchain may change. To ensure a smooth upgrade, validators need to learn and understand the new protocols so that they can perform validation work according to the new protocols after the upgrade."}]}],"pr":"36d117433b344ac281473b2948f931c3a70d74aabc8857615d0de98631f55e5a"}