Something to say about diplomacy in this version.
Iam not sure if this is related to the fact that everyone has a defence pact and in most cases the human not, making it only attractive to the AI to attack the human.
But in general the AI kinda goes crazy in its war declaration against me, if its in industrial age or behind. Peaceful game all day long, good friendship with the neighbors with lots of green diplo modifiers and some turns later they declare war against me with a war pact. Then like every 10 turns another civ joins in the war, even if they are sitting on the other side of the map never be able to reach me with units.
Maybe its realistic, but not really funny to face people which were 200 turns your best friends.
Should be better next version; if not, I can make some more tweaks, depending on the situation.