In wp-config.php file:
define( ‘WP_AUTO_UPDATE_CORE’, false );
This will disable all automatic WordPress updates.
/* AUTO CORE UPATE ENABLED */
define( ‘WP_AUTO_UPDATE_CORE’, true );
For plugins & themes:
In functions.php file
/* AUTO PLUGINS UPATE ENABLED */
add_filter( ‘auto_update_plugin’, ‘__return_true’ );
/* AUTO THEME UPATE ENABLED */
add_filter( ‘auto_update_theme’, ‘__return_true’ );