This camera is supported in latest version of Lightroom 6.7. Please update to Lightroom 6.7 to import raw files from this camera. Refer Working with Canon Dual Pixel raw CR2 files in Camera Raw and Lightroom
Thank you, Akash. I am attempting to update to 6.7 now. John T. Smith is helping: I cannot seem to get the update to take, as the Application Manager seems to be corrupted and I cannot get a functioning new one from the link provided by John (it goes to Lightroom CC, which doesn't seem to help. Any idea what I should do?
Lightroom 6 and Lightroom CC are the SAME program and are updated using the SAME updater. Depending on how you have licensed your Lightroom on your computer, it will install as Lightroom 6 or Lightroom CC. If it is installed as Lightroom 6 then you will not have the new features that have been added since Lightroom 6 was released.