Courtesy of Nikon's support document, we've compiled a table below describing the changes in more detail, as well as which camera(s) they apply to. Nikon is stating that the D2X and D2Hs firmware will be available this Fall. No timing is given on the D200 firmware, but one might infer it would be available in roughly the same timeframe.
| Primary Firmware Changes | D2X | D2Hs | D200 |
| An "Image authentication" item will be added to the setup menu. However, the optional Image Authentication Software is required to verify image authenticity. | Yes | Yes | Yes |
| Autofocus subject acquisition and tracking capability will be improved. | Yes | Yes | - |
| The "Custom" option in the shooting menu's "Tone compensation" item will be modified so that up to 3 user-defined curves can be downloaded to the camera.* | Yes | Yes | - |
| A "Save/load settings" item will be added to the setup menu. | Yes | Yes | - |
| The "Mirror lock-up" item in the setup menu will be modified so that the mirror can be locked in the up position under battery power as well as AC adapter power. | Yes | Yes | - |
| The number of options available for the "Lock-on" item in the Custom Settings menu will be increased to 4: "Long", "Normal", "Short", and "Off". | Yes | Yes | - |
| "Max. sensitivity" and "Min. shutter speed" options will be added to the "ISO auto" item in the Custom Settings menu. | Yes | Yes | - |
| The "Maximum shots (Max No. of shots taken in continuous shooting)" item in the Custom Settings menu will be modified to allow a maximum setting of 60 shots. | Yes | Yes | - |
| A "Recent settings" item will be added to the setup menu. | Yes | Yes | - |
| H 0.3 (ISO 1000 equivalent), H 0.5 (ISO 1100 equivalent), and H 0.7 (ISO 1250 equivalent) options will be added between the ISO 800 and HI-1 sensitivity settings. | Yes | - | - |
| A "Black-and-white (sRGB)" option will be added to the "Color mode" settings in the shooting menu. | Yes | - | - |
| A "Trim" item will be added to the shooting menu. | Yes | - | - |
| The "FUNC. button" in the Custom Settings menu will be divided into two items: "FUNC. button press" and "FUNC. button + command dials". | Yes | - | - |
| Support for the optional Wireless Transmitter WT-3 will be added. | - | - | Yes |
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| * An upgrade of Nikon Capture 4 Camera Control is scheduled to support download of 3 curves to the camera. The optional Camera Control Pro software can also be used to download curves to the camera. |
