The latest prerelease is available at
http://www.arcengames.com/share/AIWar1999T.zipThat version is an upgrade from version 1.301, so you have to already have 1.301 (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 1999S:
(Cumulative release notes since 1.301 are attached at the bottom)
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-The Mark III and Core AI Force Fields are once again mobile. The AI simply had too many interesting tactics to use with these to turn them off.
-Previously, enemy force fields were visible through the fog of war. Fixed.
-The knowledge costs of tachyon beam emitters and stealth tachyon beam emitters have been halved. Additionally, their tachyon beam ranges have been increased from 750 and 1000 to 4000 and 8000, respectively.
-Previously, AI waves coming from core/home planets were always a Mark IV/V mix. Fixed.
-Previously, space tugs that were set in attack-move or free-roaming defender mode would dance around in a very unhelpful way while waiting at the repair station for the repair station to do its work.
CHANGES FROM PRIOR VERSIONS
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-The Buy and Tech buttons for Bombers were vertically flipped in the past prereleases. Fixed.
-Heavy defenses now have a collision priority of 10,000 (this includes forts).
-The Core Bomber graphic was incorrectly rotated/positioning in recent prereleases.
-In recent prereleases, the exo-force-fields were not showing their protection aura over their protected ships, even though they were properly protecting the ships. Fixed.
-In recent prereleases, players were being shown as winning when they had in fact lost.
-In prior prereleases, it was possible for ships to "dance" out of the way of one another in a long line. Fixed.