[Randallw]

So far as I know he changed the UI, also there are a ton of new technologies and facilities and finally planets seem much more important. You can't colonise 400 planets and have them all be roughly equal. YOu get a few major planets with 80 or so facilities and the rest of your empire are small colonies, ie finding planets that are exactly right for you is the most important thing. The ships also seem to have be massive at high level with tons of components.