Remove specific plugins and themes from the Dashboard->Updates page [duplicate]

There are two hooks you can use: ‘site_transient_update_plugins’, and ‘site_transient_update_themes’.

Plugins

To disable update for ‘fpw-category-thumbnails’ plugin, put the following code in functions.php of your theme ( child theme ):

function remove_plugin_updates($value) {
    unset($value->response['fpw-category-thumbnails/fpw-category-thumbnails.php']);
    return $value;
}
add_filter('site_transient_update_plugins', 'remove_plugin_updates');

If you want to disable updates for all plugins, use the following code:

function remove_plugin_updates($value) {
    return null;
}
add_filter('site_transient_update_plugins', 'remove_plugin_updates');

Themes

To disable update for ‘twentytwelve’ theme, put the following code in functions.php of your theme ( child theme ):

function remove_theme_updates($value) {
    unset($value->response['twentytwelve']);
    return $value;
}
add_filter('site_transient_update_themes', 'remove_theme_updates');

If you want to disable updates for all themes, use the following code:

function remove_theme_updates($value) {
    return null;
}
add_filter('site_transient_update_themes', 'remove_theme_updates');

Summary

To disable plugin’s update, you must know a path to plugin’s .php file, relative to ‘/wp-content/plugins/’ folder.

To disable themes’s update, you must know a path to theme’s folder, relative to ‘/wp-content/themes/’ folder.

Easy way

To make it all easy, use Easy Update Manager plugin.