Recently FontAwesome has been upgraded with version 4.2 with 40 new icons, therefore who have been using the Filter FontAwesome (Originally Created by Julian, can be found on this link https://moodle.org/plugins/view.php?plugin=filter_fontawesome) can download the updated version clicking HERE.
This time I have updated the version number from 2.0 to 4.2 (as equal to FontAwesome's version), and this is NOT a drop in replacement therefore will upgrade the database.
Please as well bare in mind, the filter ONLY works if your theme is supporting the FontAwesome where currently supported themes are Elegance and Essential.
Essential 2.7.6b has just been upgraded by David few hours back, so new icons will only show with Updated theme with new FontAwesome. I am unsure about Elegance, but upcoming version of Essential is updated for sure.