Latest version: 1.4 – Released January 28th, 2010
Description
Completely disables the core update checking system in WordPress 2.3 and higher. It prevents WordPress from checking for updates, and prevents any notifications from being displayed in the admin area. Ideal for administrators of multiple WordPress installations.
Why would I want to disable it?
Most people should not disable this feature. It’s a fantastic feature of WordPress and I’m fully in support of it. However, administrators who maintain multiple installations of WordPress on behalf of other people (eg. clients, friends) may not want update notifications to be shown to the users of these installations. This plugin is for them.
Installation
This plugin is only for WordPress 2.3 and later. Earlier versions of WordPress did not have the core update notification system, therefore do not need this plugin.
Download the plugin using the link at the bottom of this page, unzip it and drop the folder straight into your wp-content/plugins directory. Activate it from WordPress’ Plugin panel.
Please note!
It’s very important that you keep your WordPress installation(s) up to date. If you don’t, your blog or website could be susceptible to security vulnerabilities. If you use this plugin, you must make sure you keep up to date with new WordPress releases and update your WordPress installation(s) as new versions are released.
Download
ZIP file from downloads.wordpress.org
You can also visit the plugin page on wordpress.org.
Any comments, questions, queries, suggestions, complaints, etc, please leave a comment below!

October 1st, 2007 at 5:55 am
Sadly it is not working. :(
http://wordpress.org/support/topic/135647?replies=3#post-624375
October 1st, 2007 at 9:10 am
Will, this plugin is working. The support thread you link to is about the core functionality of WordPress.
October 2nd, 2007 at 6:05 am
OK I understand now… Thanks!
July 26th, 2008 at 3:37 pm
Version 1.2 released.
July 26th, 2008 at 5:53 pm
hi. Thanks for plugin
perfect.
best Regards
December 2nd, 2008 at 10:08 pm
Awesomely important for my client’s sites / sites with authors.
The Admin already knows when WP needs to be updated. The admin gets emails and RSS from WordPress that informs us adequately.
When the yellow line popped up in my author’s admin, that was just scary and telling them to update software which they know nothing about. It actually said “Tell your admin to update”, which was aggravating.
Thank you for fixing this, with the plugin.
June 21st, 2009 at 3:13 am
Version 1.3 out which adds support for WordPress 2.8.
August 3rd, 2009 at 8:40 pm
Man thanks for this great plugin!
November 13th, 2009 at 3:08 pm
Thanks for this great plugin. I use this on some sites. This should be implemented into wordpress by default, as most users only get nervous when they see the “update now” notification…
November 15th, 2009 at 9:06 pm
Hi, awesome plugin, I found it pretty useful, but it would be very nice if we could choose wich wordpress roles won’t see the update alerts, because me as an admin would prefer to be noticed of new available updates but not my Authors, or Editors, for instance…
January 9th, 2010 at 9:17 am
I was wondering if there was any way to donate to your site. This plugin rocks and I would love to contribute to your efforts!
January 9th, 2010 at 12:59 pm
Thanks Rose! I don’t accept donations but your praise is very much appreciated and I’m glad you find this plugin useful. Don’t forget to check out my other plugins too.
February 5th, 2010 at 1:31 pm
Great, found your plugins while researching why there was a constant delay when initially loading a site I was working on.. Now From +/- 3 secs down to 0.65 now according to Yslow
I agree Joauin; it would be nice if it could distinguish between roles… but for now super! Tnx.
February 26th, 2010 at 9:47 pm
Thanks for this plugin. I didn’t even know you can disable this feature. Sometime when I upgrade my Wordpress too soon, things get out of wack with other plugins. Now I can enable or disable at will. hehe cool.
February 26th, 2010 at 9:51 pm
Super great plugin. Thanks for sharing.