The firmware update Ver.1.01 from Ver. 1.00 incorporates the following issue:

1. Adding the compatibility with “XF18-55mmF2.8-4 R”.
   *You will get the full performance with the new zoom lens “XF18-55mmF2.8-4 R”.
2. The phenomena below will be fixed.
   (1)The auto focus accuracy with XF60mm Lens could not be enough.
   (2)When using the M- Mount Adapter, under exposure could occur.

See on www.fujifilm.com