i just finished a couple of games post patch and here are the issues that i noticed.
- if you ever assemble more than 3 units, even in your own territory or far from their nearest border, and the AI sees it via any way, you immediately get the " i see you have units near my border" comment. if you say not to worry, but even 100s of turns later attack that country, you've broken your word even tho, you werent even close to there country's borders originally.
- 2 CS want the same city destroyed. upon doing it, the message pops up that someone else has already accomplished it. seems to work fine if only 1 CS wants that CS destroyed.
- units do not immediately stop upon encountering a barbarian or enemy unit. instead, it continues on it's path which frequently uses up all of its movement and leaves it right next to an enemy.
- ICS is out of hand

every war i fought, instead of building combat units, they were pumping out workers, settlers, or fishing boats and then sending them right out to be captured/destroyed.
- AI doesnt understand when a city cannot be defended. too many times i'd have a city one its final pts and the AI would send one of its few combat units right into the city, losing both the city and the unit the next turn.
- AI doesnt seem to understand that cannon/artillery are ranged units and not melee units. often i'd see a cannon/artillery in a besieged city but never see it fire at the attackers. archers seem to be used correctly.
- upon discovering railroad, i got messages that all my road based networks had been broken. it did not appear to actually break any of them tho.
- denounce chains are out of control. at some point in every game, a friendly nation denounces me, which starts everyone denouncing me, then then following turn, its me vs the world. nations with RAs should really hesitate to be doing this.
- there is no gratitude at all for giving cities to a country that has no cities/settlers left. (complete kill option)
- country asks me to eliminate another country, then upon doing so, considers me a warmonger.
- country warns you not to settle their lands when the land in question is right outside my city and closer to my capitol than theirs, and no where near one of their cities. when that city further expands, they get even madder.
- conquering another country quickly with result in others questioning your "expansion" if if all the conquered cities are being razed.