Proxy Upgradeability Patterns

Proxy upgradeability patterns allow developers to update the logic of a smart contract while maintaining the same contract address and state. This is achieved by separating the contract into two parts: a proxy contract that users interact with and a logic contract that holds the actual code.

The proxy uses a delegatecall mechanism to forward user transactions to the logic contract. When a vulnerability is found, developers can deploy a new logic contract and update the proxy to point to the new address.

This solves the immutability issue but introduces risks regarding governance and the potential for malicious logic updates. It is a critical component of protocol architecture in financial derivatives.