We’ve had Carbide Motion 4 and GRBL 1.1 out for about two weeks now and the feedback has been positive enough that we’re recomending it for everyone except those running their machine 24/7 for production.
Details of the upgrade benefits and process is at:
http://carbide3d.com/blog/2017/carbide-motion-4-beta/
Let us know what you think at:
if it works fine for you with no problems, let us know that too.