Did a run with Russia with this update,
The AI is sending out WAY more trade requests now. They seem to much more desire strategic resources and place much more value on them. Playing Russia (I randomly got them), I pretty much always had a massive gold in take because of this. I think they are probably over valuing them though, as I was getting requests for 50/GPT for 10 horses or in that range often.
Was the barb spawn from unhappiness changed? I dipped into the "zone" briefly and had 8 barb knights spawn around my capital, had more spawn before I could clear them. I don't recall it happening to this level previously.
Edit: Notice unhappiness barbs much more around the AI as well. So I think they have been adjusted to spawn more often?
Still can't trade cities back to their original owners. (fully healed cities)
Example:
https://freeimage.host/i/impossiblestill.de6C8v
Not sure when or why this changed because about 4 updates ago this wasn't an issue.