Best I can find is the nraas post about it: http://nraas.wikispaces.com/Patch+1.69
There don't seem to be any official patch notes for this, nor is there a patch file to download.

I saw the earlier reply, but just to double check - is it a definite thing that awesomemod for 1.69 is never going to happen? If so I guess I have to uninstall and reinstall the game via all my discs and manually patch up to 1.67