pragma ever-solidity >= 0.68.0;

import "./IUpgradableByRequestBase.tsol";

/// @title Upgradable by Request Interface
/// @notice Interface for contract upgrade by request implementation
interface IUpgradableByRequest is IUpgradableByRequestBase {
    /// @notice Upgrades contract's code
    /// @dev Only the upgrader can perform. See Upgrader
    /// @param _version New version of the contract
    /// @param _code Contract's new code
    /// @param _remainingGasTo Gas recipient
    function upgrade(
        uint32 _version,
        TvmCell _code,
        address _remainingGasTo
    ) external;
}