Dpreview might have a beta version of a new release of Camera Raw, but it isn't available to the general public. You will have to wait for the official release before you can have access to it. Whenever someone purchases a new camera that isn't supported they become impatient and demand support for their raw images right now. And that often isn't possible. I'm going to provide you with a link to a discussion about a Sony camera. The discussion is about two months old. Substitute your camera model for the Sony, and then read the entire thread. Every comment in that thread is relevant to the situation with the new Canon camera. After you have read the entire thread, if you really think there is something relevant to ask regarding this new Canon camera, feel free to do so.
Although this discussion centers around Lightroom, the same is true about Camera Raw/Photoshop.