After the release earlier today of Adobe Camera Raw 9.9 it was just a matter of time for Lightroom to be come out with GFX, X-T20, X100F and X-A10 Support. And it just happened!
You can update to Lightroom CC 2015.9 (the creative cloud version) or to Lightroom 6.9 (standalone version).
In addition to the camera support, it also fixes the following bug that occured with X-T2 and X-Pro2 cameras:
- Unable to import compressed raw files from Fujifilm X-T2 and X-Pro2