With a corresponding release of an ACR update for Photoshop CC this is a minor update adding new camera and lens support and some bug fixes.
New Camera Support in Lightroom CC 2015.10 / 6.10
Canon EOS M6
Canon EOS Digital Rebel T7i (EOS 800D, EOS Kiss X9i)
Canon EOS 77D (EOS 9000D)
Mac users will be pleased to hear that Adobe has made progress in fixing the black panel issue and have reduced the chances that you will see the issue again. This was mainly intermittent, often fixed by tabbing or clicking the dock icon, but requiring some users to quit and re-start the application.