Global Site Tag (gtag.js) Option? (analytics.js / ga.js) is outdated!

It seems that Google Analytics is now using gtag.js and not the OLD analytics.js / ga.js options. This is what google gives you now:

<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-xxxxxxx-1"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'UA-xxxxxxx-1');
</script>

So I’m not sure what to choose on the setup options for your plugin! Its neither analytics.js or ga.js

Please let me know!
Thanks!