Cosmoteer 0.13.1 has just been released! The majority of changes are bug fixes, but there are still a couple of nice other improvements:
First, this update adds to multiplayer a feature called the "Perimeter of Death". This is a giant circle around the battle area that will quickly damage and destroy any ships that stray outside of it. It is intended to reduce the effectiveness of "kiters" (ships with long-range weapons and lots of thrust that simply stay out of range of enemies) as well as prevent players from simply running away indefinitely.
The other feature is something that a lot of players have been asking for: a "sort" function for the Ship Library. Now, players can sort their ships by name (the default), cost, crew, or date modified.