This snippet of code prevents WordPress from checking for plugin updates. For security reasons, it is important to keep third-party WordPress plugins up-to-date. However, there are times when you might create a site for a client and don’t want them to update their plugins. Perhaps you have changed a plugins code or concerned a plugin update could cause problems or break the site.
Simply paste the following code into your sites functions.php file. The functions.php file is located in your sites theme folder.
remove_action( 'load-update-core.php', 'wp_update_plugins' ); add_filter( 'pre_site_transient_update_plugins', create_function( '$a', "return null;" ) ); ?>