Alley

Scott Cariss

Monitors your WordPress installation for core, plugin and theme updates and emails you when they are available. This plugin is ideal if you don’t login to your WordPress admin regularly or you support a client’s website.
Features
<ul>
<li>Set the interval of how often to check for updates; hourly, twice daily or daily.</li>
<li>Sets WordPress to check for updates more often meaning you get to know about updates sooner.</li>
<li>Get emailed about core, plugin and theme updates.</li>
<li>Chose if you want to be notified about active only themes and plugins updates.</li>
<li>Remove upgrade nag message to non-admin users.</li>
<li>For advanced users there are a number of filters and actions you can use. More coming soon.</li>
</ul>
This plugin is a fork of <a href="https://wordpress.org/extend/plugins/update-notifier/" rel="ugc">Update Notifier</a>. This plugin was forked because there seemed to be no further development on the existing plugin and there was no way to contact the original author to ask about taking ownership. WP Updates Notifier has the following improvements over Updates Notifier:
<ul>
<li>Completely rewritten from the ground up using best practises for writing WordPress plugins</li>
<li>Code wrapped in a class so better namespace.</li>
<li>You can set the cron interval, allowing for more frequent checks.</li>
<li>Update checks trigger WordPress internal update check before notification.</li>
<li>Allows you to set the ‘from address’.</li>
<li>Allows you to set multiple ‘to addresses’.</li>
<li>Makes use of the Settings API.</li>
<li>A number of available hooks and filters for advanced users.</li>
<li>Active support and development.</li>
</ul>
Languages
<ul>
<li>French by <a href="http://www.ordilibre.com/" rel="nofollow ugc">Christophe Catarina</a> – Added 03 July 2013</li>
<li>German by <a href="http://alexander.pfabel.de/" rel="nofollow ugc">Alexander Pfabel</a> – Added 02 October 2012</li>
</ul>
<h3>Filters</h3>
Two filters have been provided to allow you to alter the email subject and email content being sent by WP Updates Notifier.
<h4>sc_wpun_email_subject</h4>
@parameters: 
$email_subject – the email subject to be filtered.
Example:
<pre><code>/* 
* Alter the email subject being sent by WP Updates Notifier 
*/
function alter_wp_updates_notifier_email_subject( $email_subject ) {
 $email_subject = 'This is the new email subject for updates notifier';
 return $email_subject;
}
add_filter( 'sc_wpun_email_subject', 'alter_wp_updates_notifier_email_subject' );
</code></pre>
<h4>sc_wpun_email_content</h4>
@parameters: 
$message – the content of the email to be filtered
Example:
<pre><code>/* 
* Alter the email content being sent by WP Updates Notifier 
*/
function alter_wp_updates_notifier_email_content( $message ) {
 $message = 'This is our new email content that will override the default.';
 return $message;
}
add_filter( 'sc_wpun_email_content', 'alter_wp_updates_notifier_email_content' );
</code></pre>

WP Updates Notifier

It's ok for theme and plugins notifications, but notification about core updates does't work for more than one year!
This plugin probably won't recieve an update anymore.

Out-of date and not fully working

Sends email to notify you if there are any updates for your WordPress site. Can notify about core, plugin and theme updates.

Themeisle

Alexander Kovalev

Creativemotion

webcraftic

WordPress admin notices and dashboard notifications can quickly become overwhelming. Plugin alerts, theme warnings, update messages, and promotional notices often take up valuable space and disrupt your workflow. Disable Admin Notices gives you full control by letting you hide, remove, or disable admin notices across the entire dashboard.
You can hide all notifications, disable selected notices only, or move everything into a clean compact bar so messages no longer clutter your admin screen. The plugin also lets you disable plugin and theme update notifications, disable WordPress core update alerts, manage which items appear in the admin bar, and even block redirect URLs used by some plugins to show ads or promotional pages.
Whether you want a cleaner dashboard, fewer interruptions, or complete control over WordPress admin notifications, this plugin helps you keep your workspace organized and distraction-free.
<h3>Key Features</h3>
Disable Admin Notices 
– Disable admin notices globally or hide selected notifications only 
– Hide dashboard notices and show them in a single compact line 
– Option to display all admin notifications in the WordPress admin bar 
– Disable plugin update notifications 
– Disable WordPress core update notifications 
– Access all hidden notices anytime from the plugin dashboard 
– Reset or restore hidden notices at any time
Disable Admin Bar Items 
– Choose which items appear in the WordPress admin bar 
– Hide or remove unnecessary plugin, theme, or tool menu items to reduce clutter
Block Ad Redirects 
– Block specific redirect URLs to prevent plugins from sending you to ads or promotional screens 
– Avoid unexpected admin redirects when activating or updating plugins
<h3>Support</h3>
We’re here to help. Feel free to open a new thread on the <a href="https://wordpress.org/support/plugin/disable-admin-notices/" rel="ugc">Support Forum</a>.
<h3>Useful Resources</h3>
<ul>
<li>If you like this plugin, you’re sure to love <a href="https://themeisle.com/wordpress-plugins/" rel="nofollow ugc">our other plugins</a> as well.</li>
<li>Our blog is a great place to <a href="https://themeisle.com/blog/" rel="nofollow ugc">learn more about WordPress</a>.</li>
<li>Get the most out of your website with our helpful <a href="https://youtube.com/playlist?list=PLmRasCVwuvpSep2MOsIoE0ncO9JE3FcKP" rel="nofollow ugc">WordPress YouTube Tutorials</a>.</li>
</ul>

Disable Admin Notices – Hide Dashboard Notifications

Disable admin notices and hide dashboard notifications from plugins, themes and core. Hide all notices, selected ones, or show them in a single line.

WP Updates Notifier vs Disable Admin Notices – Hide Dashboard Notifications