wp: to disable update notifications

To disable update notifications - Sanjeev Mishra

//www.wpoptimus.com/626/7-ways-disable-update-wordpress-notifications/

//To Disable Update WordPress nag
add_action('after_setup_theme','remove_core_updates');
   function remove_core_updates(){
      if(! current_user_can('update_core')){return;}
      add_action('init', create_function('$a',"remove_action( 'init', 'wp_version_check' );"),2);
      add_filter('pre_option_update_core','__return_null');
      add_filter('pre_site_transient_update_core','__return_null');
   }

//To Disable Plugin Update Notifications
remove_action('load-update-core.php','wp_update_plugins');
add_filter('pre_site_transient_update_plugins','__return_null');

// Hide wordpress update alert
add_action('admin_menu', 'wpc_wphidenag');
   function wpc_wphidenag(){
     remove_action('admin_notices', 'update_nag', 3);
   }

//OR To Disable all the Nags & Notifications
   function remove_core_updates(){
     global $wp_version;return(object) array('last_checked'=> time(),'version_checked'=> $wp_version,);
   }
add_filter('pre_site_transient_update_core','remove_core_updates');
add_filter('pre_site_transient_update_plugins','remove_core_updates');
add_filter('pre_site_transient_update_themes','remove_core_updates');