The Latest prerelease is now out: http://www.arcengames.com/share/AIWar1014V.zip
That version is an upgrade from version 1.013, so you have to already have 1.013 (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 1.014U:
(Cumulative release notes since 1.013 are attached at the bottom)
-The planet notes textbox has been increased in size, and no longer has scrollbars. The use of the scrollbars would cause a "waiting for players" message in multiplayer games.
-The scrollbars in the View Controls window would previously hang the game while being dragged. Replaced with new scrollbars that fix this.
-The bonuses to metal/crystal production in mutliplayer, and the harvester efficiency penalties for holding too many harvesters in any game, have both now been removed in light of the new ongoing metal/crystal costs of energy reactors.
CHANGES FROM PAST PRERELEASES
-The amount of energy generated by home planet command stations has been increased from 20,000 in the past release to 30,000 in the new release.