Modify Main Query - mdhemalakhand1999/WordPressPluginDevelopment GitHub Wiki

function wp_plugin_pre_get_posts($wpq) {
	if(is_home() && $wpq->is_main_query()) {
		$wpq->set('tag__not_in', array(8));
	}
}
add_action("pre_get_posts", "wp_plugin_pre_get_posts");