Quote Originally Posted by quadalpha View Post
... But it does seem that your diplomatic reputation is now tracked individually for each faction.
It is, according to the printed manual.

"Every decision, every treaty made and broken, every army that pillages foreign land without consent, will be remembered when you approach another faction with diplomacy in mind. All factions will be aware of your past treatment of others, particularly their own allies. They'll assess your reputation and treat your approaches accordingly, meeting your requests as befits their opinions of you."