Ages of the Federation is a new total conversion mod for Sins of a Solar Empire: Rebellion. This mod takes place in the Enterprise and Original series eras, focusing on the conflict between the early Federation and Klingon Empire. A resurgent Romulan Star Empire, angry and still licking its wounds after their defeat to Earth and her allies waits in the shadows, ready to take advantage of any of misstep by either the warring powers. The Xindi, new to the galactic stage are also eager to forge their own path.
Did the ship get a redesign?
Moddb.com
Looks like it's been remodelled to be closer to the original design.
The Federation Daedalus (this one) is a colony ship.
The Coalition of Planets Daedalus (the other design) is a combat ship.
I've been surprised by JUST how different some of the Fed ships are looking compared to their original AOTF appearances... clearly a lot of working going into this version!