Disable WordPress auto-updates

disable-auto-updates.php

<?php
/*
 * Plugin Name: Disable Automatic Updates
 * Description: Prevents WordPress from performing automatic updates
 * Author:      Jon Insley
 * Author URI:  https://joninsley.com/
 * License:     GNU General Public License v2 or later
 * License URI: http://www.gnu.org/licenses/gpl-2.0.html
 *
*/

// Standard plugin security, keep this line in place.
if (!defined('ABSPATH') || !is_dir(ABSPATH)) {
	return;
}

// Disable all automatic updates
add_filter( 'automatic_updater_disabled', '__return_true' );

// Disable core updates
add_filter( 'auto_update_core', '__return_false' );

// Disable plugin updates
add_filter( 'auto_update_plugin', '__return_false' );

// Disable theme updates
add_filter( 'auto_update_theme', '__return_false' );