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<?php

/**
 * @file classes/install/DowngradeNotSupportedException.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @brief Exception indicating an unsupported downgrade.
 */

namespace PKP\install;

use Exception;
use Throwable;

class DowngradeNotSupportedException extends Exception
{
    /**
     * Constructor
     */
    public function __construct(string $message = 'Downgrade not supported', int $code = 0, ?Throwable $previous = null)
    {
        parent::__construct($message, $code, $previous);
    }
}