What Is the Difference between a State Change and a Code Change in a Deployed Smart Contract?

A code change involves altering the fundamental logic or functions of the smart contract, which is generally impossible due to blockchain immutability. A state change, however, involves modifying the contract's stored variables, such as account balances or ownership status.

State changes are the intended and common result of a contract's execution, while code changes require specific, often controversial, upgrade mechanisms.

How Can a ‘Proxy Contract’ Allow for an Apparent Code Change without Breaking Immutability?
What Is the Concept of a “State Change” in a Smart Contract?
How Do Smart Contracts on a Private Blockchain Differ from Stored Procedures in a Traditional Database?
Can an External Attacker Exploit a Vulnerability in the Logic Contract before It Is Upgraded?
What Is a ‘State Change’ in the Context of a Smart Contract?
Give an Example of a State Variable in a Smart Contract Used for Collateralized Lending.
How Do State Changes in a Smart Contract Get Recorded on the Blockchain?
What Happens to a Contract’s State Variables during a Mutable Upgrade?

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