//code/contracts/ethereum/contracts/state-transition/chain-deps/facets/Admin.sol
    function upgradeChainFromVersion(
        uint256 _oldProtocolVersion,
        Diamond.DiamondCutData calldata _diamondCut
|>    ) external onlyAdminOrStateTransitionManager {
...
//code/contracts/ethereum/contracts/state-transition/chain-deps/facets/Admin.sol
    function executeUpgrade(
        Diamond.DiamondCutData calldata _diamondCut
|>    ) external onlyStateTransitionManager {
        Diamond.diamondCut(_diamondCut);
        emit ExecuteUpgrade(_diamondCut);
    }
    function _setChainIdUpgrade(
        uint256 _chainId,
        address _chainContract
    ) internal {
...
          //@audit executeUpgrade of an ST will only be called once at chain deployment, because _setChainIdUpgrade() is only invoked when creating a new chain.
|>        IAdmin(_chainContract).executeUpgrade(cutData);
...
