Version 4.6 of Phase One’s Capture One and One PRO 4 software is now available for download.

This release extends RAW support to the Canon G10, Nikon D3X,
Olympus E-30 and Phase One P 65+ cameras, as well as delivering improved
camera support for the Canon EOS 5D Mark II and EOS 50D.

Capture One
4.6 PRO is also claimed to deliver tethered shooting for most of the current Nikon
DSLRs.

To download, hit this link.