是的，你可以用一个钩子，它叫upgrader_process_complete. 这个钩子在插件或核心升级后激发。

您可以连接到此操作并发送电子邮件：

function send_custom_email( $object, $options ) {
    // Get the path for plugins
    $plugin_path = plugin_basename( __FILE__ );
    // Check if the plugin is upgraded
    if ($options[\'type\'] == \'plugin\' && $options[\'action\'] == \'update\' ){
        foreach($options[\'packages\'] as $plugin){
            if ($plugin == $plugin_path){
            // Do some stuff here
            }
        }
    }
}

add_action( \'upgrader_process_complete\', \'send_custom_email\',10, 2);