https://github.com/code-423n4/2024-02-althea-liquid-infrastructure/blob/bd6ee47162368e1999a0a5b8b17b701347cf9a7d/liquid-infrastructure/contracts/LiquidInfrastructureERC20.sol#L50C1-L54C41
https://github.com/code-423n4/2024-02-althea-liquid-infrastructure/blob/bd6ee47162368e1999a0a5b8b17b701347cf9a7d/liquid-infrastructure/contracts/LiquidInfrastructureERC20.sol#L4C1-L12C1
The LiquidInfrastructureERC20 has a version and judging by the comment, it seems the contracts are intended to be upgradeable, so as to seamlessly make updates to the contract while introducing a new version. 
But the contract doesnt inherit any upgradeable OZ contracts, nor storage gaps:
If upgradeability is truly desired, inherit the upgradeable OZ contracts, and add storage gaps.
