You can't get it. You will have to wait for the final release of Camera Raw 8.7. In the meantime, you can use the software that came with the camera to create TIF copies that you can use now. You are not the only person facing this dilemma.. The question gets asked at least five times every day. The answer is the same.
The software that came with the camera does not work with Apple's OS X 10.10 (Yosemite). Apple, Adobe and Canon aren't compatible with this new camera - yet. Convert to DNG files if you're not using Apple OSX 10.10.
There isn't a DNG converter yet that will convert the raw files from that camera. You'll have to wait for the 8.7 final release.
Canon Eos 7D Mark ii was launched after we released ACR 8.7 RC. So, that’s the reason it is not included in the RC version. However, it is on our radar and hoping to add it in an upcoming update itself.
As soon as it is available, it will be updated in the below article.