Support for Civ3 is obviously winding down. It's been many months since the release of Conquests and still no official patch. I guess that's what happens when you've only got one person working on something, part-time as well.
I bet we'll see a new iteration of Civ3 later this year - with both expansions and the last patch - just to squeeze as much money of a dead horse as possible....
The best point of view in this issue is the constant and active participation on this patch thread of Firaxians support team that constantly clarify doubts and constantly tells precise info about releases' versions and dates.