He added somewhere between 20 and 40 new components based on a new tech area called Nano Technology. Really, I wouldn't expect him to say much more in the readme file other than:
Added a whole heck of a lot of new components based on a new tech area called Nano Technology.
I don't know how well these will work in actual play. But I am impressed by anyone who puts in this much work to create a new tech area and so many new components.
Now... if you could just make one of the AI races use them...