# Core

The following sections relate to *Core* contracts.  *Core* contracts are deployed by the Mezz Deployer using [EIP-1967 upgradeable proxies](https://docs.openzeppelin.com/contracts/4.x/api/proxy#ERC1967Proxy) and [EIP-1167 minimal proxies](https://eips.ethereum.org/EIPS/eip-1167).