- Require XF 2.2 or higher (incompatible Mailer class between XF 2.1 and 2.2)
- Use <xf:fa /> for the staffBar now that XF requirement is 2.2+ (better compatibility with Font Awesome Manager)
If you aren't using Font Awesome Manager, nothing really changes with this update (if you were using XF 2.0 or 2.1, you would have gotten errors before, now it simply doesn't let you install unless you have XF 2.2).