In the Class Design window.
In 1. 2 there was a bug where creating a new ship class would always assign it to a Cruiser hull.
Now, the first ship you create is reassigned to the last hull you used.
For example:
1. I created a geo survey ship class named "a", and it was assigned to geo survey hull.
2. I created a cargo ship class named "b", and both classes ("a" and "b") were assigned to cargo hull
3. I created a command dropship class, "a" and "c" were assigned to command dropship hull, while "b" remained to be cargo hull.
When changing the hull type of the ship, it doesn't update in the hierarchical view on the left.
If you close the window and open it again - it shows the correct hierarchy