{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain perform chain upgrading and manage upgrade proposals?","a":"Chain upgrade: Nodes in the blockchain network need to conduct regular software upgrades to adapt to the constantly changing business requirements and technological developments. Chain upgrades usually  involve modifications to the blockchain protocol, including performance optimization, security enhancement, and adding new features. During the upgrade process, nodes need to download and install new software versions to support the new protocol specifications."}]}],"pr":"f093ee8c334a36acac8812a42dc5a9f547268d14ba38bd6ee18495d4fcf7d7d2"}