UUPS

UUPS proxies are more gas-efficient than transparent proxies because upgrade logic lives in the implementation.UUPS 代理比透明代理更节省 gas，因为升级逻辑存放在实现合约中。

Developers prefer UUPS for new projects as it reduces unnecessary code in the proxy layer.开发者在开展新项目时更倾向于使用 UUPS，因为它减少了代理层中不必要的代码。