The latest prerelease is available at
http://www.arcengames.com/share/AIWar1999B.zipThat version is an upgrade from version 1.301, 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 1999A:
(Cumulative release notes since 1.301 are attached at the bottom)
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-The algorithm for nebula generation has been updated so that it now has a more even distribution (which is nicer to integrated/older graphics cards).
-Sniper and Ion Cannon shots are now twice as fast as before.
-There was previously a rare crash bug that could occur when assigning ships to a control group. Fixed.
-The totals screen in the galaxy map now shows the available ship types (from the dropdown), as well as the selected map style. Maps created with an older version of the game will show "Unknown" for the map style.
NEW ART - Philippe Chabot
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All remaining shot effects.
ExplosionSmall (shot hit)