{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to perform upgrade operations in a blockchain network?","a":"Writing an upgrade proposal: Based on the consensus of the upgrade requirements, developers need  to create a detailed upgrade proposal, specifying the contents, implementation plans, and expected effects of the upgrade. The proposal should include modifications to the existing blockchain code, designs of new features, and relevant testing cases."}]}],"pr":"af2a3fbb8369830f82b0ff2690969a7bef4076c79a81a3b67c3af396271a51d5"}