Andrew Norcross

Control the emails sent by the WordPress auto-update process. Disable which update result(s) are excluded from email sending.

Control WP Core Emails

Thanks for the excellent plugin :)

I have one minor request if you have time, and that is for the settings page to be available network wide. At the moment, I have to do the settings individually for every site which seems unnecessary.

Excellent idea

Control the emails sent by the WordPress auto-update process.

gr8nilay

This plugin is use to disable all your WordPress core updates as well as notifications for the same. It will prevent your WordPress to check for new updates. This plugin is ideal for whom who have customized and enable theme / plugins to work with existing WordPress verstion and won’t break site at time of WordPress core update.
Read This First: 
You need to keep your WordPress updated including themes and plugins so if you fail for the same then it will might compromise security of your site.

Disable WP Core Updates Advance

Disable all your WordPress core updates on plugin activation.

Control WP Core Emails vs Disable WP Core Updates Advance