Hey Chris!
Latest software version is 1.182, which was released earlier this year, and yes it will work with your original CW.
Some of the others have already given a little info on some of the new things we have, like the new 3/16th carving and cutting bits, but we have so much more than just that to offer.
I'm not sure if you are aware of this, but we also have STL and DXF Import packages, a package called Conforming Vectors which enables you to conform vector paths like Centerline to patterns, carve regions, and other surfaces, and numerous other upgrades to the machine: CT Spindle, Heavy Duty traction belts, etc.
Welcome home buddy!
BTW, our mirror project is still incomplete. I have had sooooo much stuff come up that it got pushed to the side. Hoping to get it done soon though, and post the work of what one of the original CW machine's accomplished.