shutdown-updater Wordpress Plugin Completely disables the core, plugins and themes update checking system in WordPress. The plugin prevents WordPress from checking for updates, and prevents any notifications from being displayed in the admin area. Ideal for administrators of multiple WordPress installations and WordPress MU based site.
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 or performance issues. If you use this plugin, you must make sure you keep yourself informed of new WordPress releases and update your WordPress installation(s) as new versions are released.
Simply upload the plugins files to your WordPress plugins directory or to your WordPress MU plugins directory.