From Adobe Lightroom Journal:
May 6, 2013 - Today’s Photoshop CC announcement requires a modest change in our camera raw support policy. Because Adobe is still selling Photoshop CS6, those customers will continue to receive updated camera raw file format compatibility via Adobe Camera Raw 8. When we update ACR8 with new camera support, Photoshop CS6 customers can work with the new version of the Camera Raw plug-in. No new features or functionality will be available in ACR to Photoshop CS6 customers as part of those updates. (No Upright, advanced healing brush or radial filter, etc.) I don’t have a timeline for how long this camera raw support will continue for Photoshop CS6 but I want to be consistent with our past policy of providing raw support for currently shipping products.