There was some interest in the Chummer team to make a version for 6th edition, but CGL was pretty inflexible with them. I think if CGL reached out to them, they might be convinced.
Nah, no involvement with CGL would've been necessary for that. Honestly, given the rather visceral reaction I've had to the book's contents so far it was likely for the best that they didn't. Snarky comments on Facebook aside, it's mostly a question of interest on my part unless someone else decides they're interested in doing the dev work. Doing an SR6 version would require I pull time from working on the edition I enjoy more, and requires more leaps in rules interpretation than I'd be happy with making (Essence loss, adept power points from heritage vs karma, etc.), so I won't do it.
Genesis seems fine from what I've used of it so far; it doesn't do a lot of the things Chummer does yet, but that's the advantage of a more mature codebase.