I make brushes for sale. I make versions vor CS2+ and I make larger brushes for CS6+.
I think I should probably make the brushes in CS6 to be good for CC and CS6, but thought I'd ask if it's possible to just make them in CC. Would save me having to keep CS6 on my computer. Thanks!
While you can make some brushes in CC that will work in CS6, there is a chance that not all will work. As CC continues to come out with updates, there might be a greater gap between those that work and those that don't. So if you are actually selling brushes, you should really make sure they work with CS6.