How to disable automatic update email notifications in WordPress without using plugins? 2021
WordPress Tutorials: If you want to disable email notifications when WordPress auto-updates the plugins, themes, or WordPress core, then this video tutorial will guide you to do so. And you do not require to use any third-party plugins whatsoever; everything will run very effectively as we have tested in a couple of our websites.
Using simple codes on the functions.php file, you can easily stop WordPress from sending you emails whenever a plugin, theme, or WordPress core is auto-updated. However, please note that this code is NOT TO DISABLE the auto-update feature rather just to stop sending the emails to your inbox notifying you about the updates.
Hope this lesson is helpful.