The latest prerelease is available at
http://www.arcengames.com/share/AIWar1202K.zipThat version is an upgrade from version 1.201, so you have to already have 1.201 (or greater) installed. Just unzip it into your game folder (usually C:\Program Files\Arcen Games\AI War\ unless you specified something else). Please make sure that your unzip process keeps the folder structure from the zip file, rather than just unpacking all of the files into the base target directory.
What's new since 1.202J:
(Cumulative release notes since 1.201 are attached at the bottom)
-------------------
-A new ship, the Decloaker, has been added. It is like a super Tachyon Drone, with an attack like a Mark II Short Range turret, fast movement, and a really massive coverage area for its tachyon beams.
-The scrolling nebula effect at the start of the game is now faster and smoother, and the background stars don't scroll at all. This makes for a nicer look in general there.
-Three new Gravitational Turrets have been added. They greatly slow the move rate of all ships in their radius. This makes them particularly effective against melee ships, or other ships that are immune to tractor beams.
