When will there be an update for Photoshop Raw to be able to read Nikon D610 Raw files?
It already exists.
Camera Raw plug-in | Supported cameras
Camera Raw-compatible Adobe applications
Support for the D610 was first added to Adobe Camera Raw 8.3 which is only compatible with CS6 and CC.
Which version of Photoshop are you running?
If you're running an earlier version of Photoshop then you must either upgrade or use the DNG converter
Camera raw, DNG | Adobe Photoshop CC
Use the converter to convert D610 Raw files to DNGs then edit the DNGs in your earlier version of Photoshop.
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