Post-Deployment Immutable Fixes

Post-deployment immutable fixes involve techniques used to address vulnerabilities in smart contracts that are already live on a blockchain. Since blockchain code is typically immutable, developers often use proxy patterns or upgradeable contract architectures to swap out logic implementation while keeping the contract address and state intact.

This allows the protocol to patch security holes without requiring users to migrate their assets manually. However, this process requires careful handling of storage slots and state variables to prevent data corruption.

If a protocol is not designed with upgradeability in mind, a post-deployment fix might require deploying an entirely new contract and orchestrating a complex migration of liquidity.