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Server: Apache/2
System: Linux da.inet.vn 3.10.0-1160.42.2.el7.x86_64 #1 SMP Tue Sep 7 14:49:57 UTC 2021 x86_64
User: thangmay (1057)
PHP: 7.4.30
Disabled: NONE
$ pwd: /home/thangmay/domains/thangmayquangda.com/public_html/wp-admin/
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File: /home/thangmay/domains/thangmayquangda.com/public_html/wp-admin/upgrade-functions.php
<?php
/**
 * WordPress Upgrade Functions. Old file, must not be used. Include
 * wp-admin/includes/upgrade.php instead.
 *
 * @deprecated 2.5.0
 * @package WordPress
 * @subpackage Administration
 */

_deprecated_file( basename( __FILE__ ), '2.5.0', 'wp-admin/includes/upgrade.php' );
require_once ABSPATH . 'wp-admin/includes/upgrade.php';
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