upgrade_old_slugs

The timeline below displays how wordpress function upgrade_old_slugs has changed across different WordPress versions. If a version is not listed, refer to the next available version below.

WordPress Version: 4.5

/**
 * Upgrade old slugs made in version 2.2.
 *
 * @ignore
 * @since 2.2.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 */
function upgrade_old_slugs()
{
    // Upgrade people who were using the Redirect Old Slugs plugin.
    global $wpdb;
    $wpdb->query("UPDATE {$wpdb->postmeta} SET meta_key = '_wp_old_slug' WHERE meta_key = 'old_slug'");
}

WordPress Version: 4.4

/**
 * Upgrade old slugs made in version 2.2.
 *
 * @since 2.2.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 */
function upgrade_old_slugs()
{
    // Upgrade people who were using the Redirect Old Slugs plugin.
    global $wpdb;
    $wpdb->query("UPDATE {$wpdb->postmeta} SET meta_key = '_wp_old_slug' WHERE meta_key = 'old_slug'");
}

WordPress Version: 4.3

/**
 * Upgrade old slugs made in version 2.2.
 *
 * @since 2.2.0
 *
 * @global wpdb $wpdb
 */
function upgrade_old_slugs()
{
    // Upgrade people who were using the Redirect Old Slugs plugin.
    global $wpdb;
    $wpdb->query("UPDATE {$wpdb->postmeta} SET meta_key = '_wp_old_slug' WHERE meta_key = 'old_slug'");
}

WordPress Version: 4.0

/**
 * Upgrade old slugs made in version 2.2.
 *
 * @since 2.2.0
 */
function upgrade_old_slugs()
{
    // Upgrade people who were using the Redirect Old Slugs plugin.
    global $wpdb;
    $wpdb->query("UPDATE {$wpdb->postmeta} SET meta_key = '_wp_old_slug' WHERE meta_key = 'old_slug'");
}

WordPress Version: 3.7

/**
 * Upgrade old slugs made in version 2.2.
 *
 * @since 2.2.0
 */
function upgrade_old_slugs()
{
    // upgrade people who were using the Redirect Old Slugs plugin
    global $wpdb;
    $wpdb->query("UPDATE {$wpdb->postmeta} SET meta_key = '_wp_old_slug' WHERE meta_key = 'old_slug'");
}