In some cases it makes sense to disable automatic wordpress updates. For example if you want to have a special release of a running wordpress installation to check plugins or themes with this release. Or if are not ready to update to the latest version of wordpress or you want to update manualy….
The wordpress developers have considered this and you can easily put the following line of code to your wordpress wp-config.php file.
define('WP_AUTO_UPDATE_CORE', false );
This will disable all wordpress updates including the minor and major core updates.
If you want to enable wordpress only do the minor updates then use the following line.
define('WP_AUTO_UPDATE_CORE', 'minor' );
If you dount know how to do this or you don’t have access too your wp-config.php file, you can use the https://wordpress.org/plugins/update-control/ plugin. The Update Control plugin adds some options to your Settings – General page. It lets you specify how auto-upgrades should function, without the need to specify constants, edit the wp-config.php or add filters.
Note: Only disable automatic wordpress updates if you know, what you are doing. Some updates are needed because of security reasons and if you disable the update function, it can happen, that your wordpress installation is vulnerable.