<?php
// Disable all automatic core updates
add_filter( 'auto_update_core', '__return_false' );
// Disable automatic plugin updates
add_filter( 'auto_update_plugin', '__return_false' );
// Disable automatic theme updates
add_filter( 'auto_update_theme', '__return_false' );
// Disable translation updates
add_filter( 'auto_core_translation_updates', '__return_false' );
?>PHP