I have LR6, the last legacy- Adobe isn't doing anymore updates to those versions. They want you to go CC. I just import them as .dng's.
Not sure I understand all the dislike for that option. If Canon's software is so superior for image processing, I guess my standards are just too low.
I need the file management that LR provides as well.
I too use nothing but lightroom.. But I've taken to moving the files off the card onto an external hard drive manually, got tired of lightroom messing with my file structor.