Description: Once deployed, smart contracts are immutable, preventing updates or fixes after bugs are discovered.
Cause: Lack of upgradable contract design, limiting flexibility in fixing bugs or adding new features.
Solution: Implement proxy patterns for upgradable smart contracts, allowing for future modifications without altering the contract's address.
contract Proxy {
address public implementation;
function upgradeTo(address newImplementation) public {
implementation = newImplementation;
}
function delegateCall(bytes memory data) public {
(bool success, ) = implementation.delegatecall(data);
require(success, "Delegatecall failed");
}
}
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