7DSV (Studio Version) which gives professional photographers new functionality. The camera's announcement took the community by surprise. We weren't inundated with speculative posts on sites such as Canonrumors.com, it just appeared.
The camera will allow up to 4 different levels of "locking". This allows administrators to disable or enable certain features and protect them with a password. The camera can then be used by the appropriate person on staff without concern that unnecessary features might be used.
It also has a new system allowing photographers to track images through their workflow by using a new "Barcode" technology. Relevant client data will be embedded in the EXIF data and can be populated or accessed by scanning a barcode.
While not a major release in my opinion, it's a noteworthy release in that it puts Canon in a unique market position over its rival Nikon. It will be interesting to see if this concept catches on and Nikon releases a similar system.