K4nj how would I go about utilizing the newer version of it which is 6.0
You'll need to copy the FA files to your server, then reference it in terms of CSS with something like
<link rel="stylesheet" href="/fontawesome/css/all.css">
This will then pull the required libraries automatically - be careful with the relative paths. Then, you need to target the :before tag of the icon you want, and change the content: "\fd02" (for example) with the HEX value you actually want.
So, an example would look like this
.fa-circle:before {
content: "\f111";
font-family: "Font Awesome 5 Pro";
}