Minimum System Requirements?

Chrome?
Cache?
Windows?
Ram?
Disk Space?
CPU?
Graphics and sound card?

What features will not be included in the free version?

As far as I understand from blog posts, any PC that can run C2/Html5 games also can run Construct 3 itself.

I think the tool works in a WebGL canvas, so I doubt if there will be any performance fluctiations.