# content-control/2.6.1/classes/Interfaces/Upgrade.php

Content Control – The Ultimate Content Restriction Plugin! Restrict Content, Create Conditional Blocks & More, version 2.6.1. 54 lines.

- Page: https://pluginprobe.com/plugins/content-control/2.6.1/code/classes/Interfaces/Upgrade.php
- Raw: https://pluginprobe.com/plugins/content-control/2.6.1/raw/classes/Interfaces/Upgrade.php
- Modified: 2023-09-21T10:13:04+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/content-control/2.6.1/code/classes/Interfaces/Upgrade.php#L10-L20`.

```php
<?php
/**
 * Plugin upgrade.
 *
 * @copyright (c) 2021, Code Atlantic LLC.
 *
 * @package ContentControl
 */

namespace ContentControl\Interfaces;

defined( 'ABSPATH' ) || exit;

/**
 * Localized controller class.
 */
interface Upgrade {

	/**
	 * Return label for this upgrade.
	 *
	 * @return string
	 */
	public function label();

	/**
	 * Return full description for this upgrade.
	 *
	 * @return string
	 */
	public function description();

	/**
	 * Check if this upgrade is required.
	 *
	 * @return bool
	 */
	public function is_required();

	/**
	 * Check if prerequisites are met.
	 *
	 * @return bool
	 */
	public function prerequisites_met();

	/**
	 * Run the upgrade.
	 *
	 * @return void|\WP_Error|false
	 */
	public function run();
}

```