Fuji released the new firmware update Ver.1.11 for the X PRO 1 (download here). It adds the support for the new M mount adapter: “When FUJIFILM M-mount adapter is set to the camera body and the correction menu of “COLOR SHADING CORRECTION” or “PERIPHERAL ILLUMINATION CORRECTION” for the mount adapter is operated, corrected live image can be displayed on EVF/LCD for setting appropriate value with ease.”
Still no upgrade on critical needed points liek the AF speed. Hope that is coming as next!