Questions About UUPS Proxy Pattern

[Skyge]

@SCD

1- I will make changes in the contracts according to the decisions taken in the DAO for the Defi protocol. Do you think UUPS proxies are the right choice for this?

Yeah, with proxy pattern, you can upgrade your contract later if you need, and UUPS is okay.

@SCD

2- Should the functions required for the Defi protocol be written in the proxy contract or the implementation contract?

It should be in the implementation, so then later, you can change implementation contract to upgrade your contract, and for more details, maybe you can have a look at here: Upgrades - OpenZeppelin Docs

@SCD

3- Is it possible to revert to the previous version after an incorrect update?

You can upgrade again with the previous implementation to revert the new changes. Actually, whenever you want to update your contracts, you should have a test at first, ensure the new function can work as expect, and the previous variables are right.

@SCD

Also, could you suggest any projects using UUPS proxies that we can use as a guide?

I think you can have a look at this tutorial:

UUPS Proxies: Tutorial (Solidity + JavaScript)

UUPS Proxies: A Tutorial In this tutorial we will deploy an upgradeable contract using the UUPS proxy pattern. We assume some familiarity with Ethereum upgradeable proxies. Introduction to UUPS The original proxies included in OpenZeppelin followed the Transparent Proxy Pattern. While this pattern is still provided, our recommendation is now shifting towards UUPS proxies, which are both lightweight and versatile. The name UUPS comes from EIP1822, which first documented the pattern. While bot…