I am not sure if the XF range is entirely new or merely expanded but it seems Swix have a range of waxes they are labelling as freeride which seems a duplicate of the CH and LF range of waxes:
The only differences seem to be that the XF range does not contain dyes in the wax and they are missing the "7" in the range, otherwise they seem identical. Can anyone say for certain if there are any formulation or performance differences? If nothing else the dyes in the waxes can't help the glide so leaving them out may be a tiny improvement.
The only real difference seems to be that they are cheaper as well- at least on the skis.com site!