Here's some bugs I found:
-Compared to previous versions I've got a lot of battle CTD's. Here's a log after the last one (though it may have saved some of the previous crashes too, because with some crashes I saw even the log doesn't save...)
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Date: 2012-10-10
Windows version 6.1 (Build 7601) Service Pack 1
Win32 DEBUG build 1349092152, cpu: IA-32, version: 2.5-dev
Failed to init symbol context
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-I've had several CTD's on battle loading, but they seemed to go away when I disabled shaders.
-Often in battle I get the message "XY has been wounded" at the beginning of the AI's turn, when the alien only shoots at my guy much later in the turn.
-Sometimes in battle, when someone's wounded clicking doesn't do anything. I can select soldier, select where to fire or move, but then that last click does nothing. Could be that bug reported elsewhere about AI turn not really ending.
-A few times it has happened that I've killed all the aliens but one, but then I am kicked back to worldmap with the battle never having registered, troops still fully loaded and healthy. If I click on site again to start battle again, the game will likely CTD-in mid battle.
-I got a couple random crashes just clicking around the home base screen too.