How to always call/load latest version of jquery?

in your theme’s functions.php:

/**
*	Use latest jQuery release
*/
if( !is_admin() ){
	wp_deregister_script('jquery');
	wp_register_script('jquery', ("https://code.jquery.com/jquery-latest.min.js"), false, '');
	wp_enqueue_script('jquery');
}

or from google

/**
*	Use latest jQuery release
*/
if( !is_admin() ){
	wp_deregister_script('jquery');
	wp_register_script('jquery', ("https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"), false, '');
	wp_enqueue_script('jquery');
}

for plugins:
https://codex.www.ads-software.com/Function_Reference/wp_enqueue_script#Load_scripts_only_on_plugin_pages

thank you.