WordPress is very popular and most used CMS in the world. Many times we do some custom development with wordpress so we need to disable automatic updates of wordpress. Sometimes when we update the wordpress then it will break your site. It is very important, when you update the worpdress version with wordpress updates. You need to test the updates on local box or QA box first.
disable automatic updates of wordpress
For disable the automatic the update you need to open the wp-config.php file and put following into that file.
define( 'AUTOMATIC_UPDATER_DISABLED', true );
After adding above line automatic updates will be disabled and If you want to do the wordpress update then you need to update the wordpress installation manually.
I think, before every wordpress updation. First the take the database and filesystem backup and then test on local box. Then do the wordpress version updation.