trogau

You can query core, plugin, and themes individually, or check all at once.
It defines four new methods:
<ul>
<li>xmlrpcCoreUpdateCheck – checks core, returns true/false</li>
<li>xmlrpcPluginUpdateCheck – checks plugins, returns true/false</li>
<li>xmlrpcThemeUpdateCheck – checks themes, returns true/false</li>
<li>xmlrpcUpdatesCheck – checks all of the above, returns an array of trues/falses.</li>
</ul>
The plugin was created primarily for WPUpCheck (http://trog.qgl.org/wpupcheck/), a simple 
Windows application that remotely polls a WordPress site to see if updates are available.

XML-RPC Update Check

This plugin provides XML-RPC methods for checking the update status of WordPress websites.

vinvin27

WP Disables Updates allow you to disables plugin or themes or translation or wordpress core updates.
Major features :
<ul>
<li>Disable plugins updates.</li>
<li>Disable themes updates.</li>
<li>Disable translation updates.</li>
<li>Disable WordPress core updates.</li>
</ul>
PS: Used there features if you know what you are doing. No updates = Security holes, but sometimes updates may break your website. 
WordPress has added a quite convenient feature since version 3.7: Automatic update.
But sometimes, updates can be a real problem for your website. 
It is important to make updates to avoid security problems, but you must be very careful when applying updates. 
For example, if you use a prenium theme and you have not made a child theme for the changes. If the theme requires an update, it may delete all your changes and lost working hours….
But be careful, it’s to be used, if you know what you’re doing. You have to be on the lookout for changes made to the plugins. 
If a correction has been made to fill a security hole or just to improve the plugin.
More detail on this blog post – write in French : 
Désactiver les <a href="https://www.vinvin.dev/wordpress-desactiver-mise-jour/" rel="nofollow ugc">mises à jour WordPress</a>

WP Disables Updates

A simple and effective plugin to turn off WordPress update notifications selectively. I have found two uses for this so far:

1. When a premium theme is broken and is erroneously reporting that there is an update available and there is not.
2. When you want to disable certain update notifications on a production site because you prefer to test them locally, commit them to your repository and push the changes to production.

Simple and Works

WP Disables Updates allow you to disables plugin or themes or wordpress core updates.

XML-RPC Update Check vs WP Disables Updates