From Nikon:
Changes from “C” Firmware Version 1.10 to 1.11
- Fixed an issue that prevented the touch-shutter option releasing the shutter when autofocus was used during live view with an SB-800 flash unit attached.
- Changed the items checked when image sensor cleaning was performed using the SETUP MENU > Clean image sensor > Clean now option. We recommend that you use this option to perform image sensor cleaning after the update is complete.
Download: Nikon D500 Firmware v.1.11
B&H carries the Nikon D500.