Don't see this being mentioned yet, so apologies if it has. If memory serves, in GC2, when you select an existing ship (on the game map, not ship yard) you had an upgrade button to upgrade it to the latest and greatest ship of that hull type. I don't seem to have that option on GC3, is that something that is going to be added later or will you just have to scuttle a ship and build a new one?
GC2 also had the option to hide Core ship designs. If you're like me and build custom EVERYTHING, having to sift through all of the Core ships is a bit tedious.
Lastly, somebody may want to spell check some of the part descriptions when you have the time. 