The list author says: "This is a list of Round 2 Star Trek starship (and space stations) model kits. Round 2 have rereleased several AMT and Polar Lights kits, as well as developing new kits under those brands. This list does not include the smaller scale Cadet Series ships, which I have a separate list of.
Round 2 has re-released some of their ships more than once, I have only listed each ship once, except for releases that came with additional parts/features.
If the Round 2 edition is not listed on Amazon I have used the original version."
"The Round 2 version of the 1:350 scale AMT kit includes new landing gear parts to give the option of displaying the ship in a landed position, plus a new stand to display it in flight. The molds have also been adjusted to position the wings more accurately."