Hi @ajgagnon
The main reason ACF still use the old version is that it contains more functionality such as the ability to order the selected values. If it causes a conflict, I believe you can always remove it:
<?php
function m_dequeue_script() {
wp_deregister_script( 'select2' );
wp_deregister_style( 'select2' );
}
add_action( 'init', 'my_dequeue_script', 20 );
?>
I hope this makes sense 🙂
