Adam Ainsworth

Sometimes newer isn’t always better.
You won’t always want to update a given plugin. Perhaps the design has been changed, or a bug has been introduced. Maybe it has been taken over by someone new and they’ve added loads of obnoxious ads or other sneaky monetisation methods. Or perhaps you just like it the way it is.
However, WP keeps telling you there’s a new version available, and lists it along with other plugins which you may actually want to update.
What happens if you accidentally update? At best, it’s a tedious downgrade process, at worst it may completely mess up the data that the plugin was using. In any case, it’s a pain and there’s no ignore update function in WP.
Until now!
IMPORTANT – You should only leave a plugin updated if you know what you are doing, familiar with the risks and willing to accept the consequences should an unpatched vulnerability be exploited on your site.
The plugin author cannot be held responsible for any loss or damages that occur as a result of using this plugin to disregard software updates!

Newer Not Better

Prevents selected plugins bugging you about updates

Alex Moss

Peadig

Disables the default notification email sent by WordPress for an automatic core update. Simply activate the plugin to disable the notification email 🙂
<ul>
<li><a href="http://peadig.com/wordpress-plugins/disable-wordpress-core-update-email/" rel="nofollow ugc">Disable WordPress Core Update Email</a> Plugin homepage.</li>
<li>More <a href="http://peadig.com/wordpress-plugins/" rel="nofollow ugc">WordPress Plugins</a>.</li>
<li>Peadig: A <a href="http://peadig.com/" rel="nofollow ugc">WordPress Bootstrap</a> theme framework.</li>
</ul>

Disable WordPress Core Update Email

The simplicity of the plugin helps it be lightweight & easy to use.

That also means the one line of active PHP code that it consists of (it then being what WordPress recommends in its current documentation per https://wordpress.org/support/article/configuring-automatic-background-updates/#disable-emails-via-filter) is likely to continue to work exactly as expected unless WordPress were to completely overhaul its setup regarding this (with there appearing to be no plans for this.) Especially considering it's using a filter so it's even more flexible if things were to change in the future (won't outright break things due to a code error beyond WordPress doing a fundamental change to a core function like add_filter or __return_false & that'd then break the majority of plugins & themes out there [they'd need a good reason for doing so & it appears they obviously have no plans for doing that either.])

Does exactly what it says it does (even 5 years since last update)

Disables the default notification email sent by WordPress for an automatic core update. Simply activate the plugin to disable the notification email : …

Newer Not Better vs Disable WordPress Core Update Email