Nothing really new as far as how we're using Font Awesome, but it is
good to keep up with the times and the tooling. Users that have used
custom fonts in their content or layouts will need to update their
icon prefixes from "fa" to "fas" or "fab" depending on which font
their icon comes from.
See: https://fontawesome.com/how-to-use/on-the-web/setup/upgrading-from-version-4
It seems this is actually the preferred way to do it, but something
in the Bootstrap v4 Alpha 6 release—perhaps the upgraded version of
Normalize.css with that release—caused our styles to be overridden
and now I realize that it should have never been working before!
Alan Orth