So I deployed an application twice. But i just want to make changes to first one. So how to do that? This is my summary:
Summary
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> Total deployments: 2
> Final cost: 0.003708932511868584 ETH
EVM bytecode is immutable by design. Once you deploy a contract, you cannot change its implementation.
You can change the source code, re-compile it, and then deploy it to a new address. Note that the newly deployed contract does not hold the storage values of the previous one.