Raised chance of getting trade aggreement with friendly factions.

Ai will be less likely to retreat when invaded and less likely to send only one army to attack.

lowered squalor penalties

Raised public order penalty for higher difficulty levels.

Ai settlements will be tougher.

Raised chance to get peace when at war.

Overhaul of occupation decisions for ai. Changed amount of money for occupations and sacking. Changed base diplomatic religious attitudes between religions.

Lowered building costs for the player as was too high in last update.