I hope this is a major typo
So the patch notes said that Anti Aliasing was added to the preferences. So I figured I'm bored let me go look at the preferences to see if anything else changed. When I mouse over Anti Aliasing this is what it says!

I'm really hoping this is major overlook and that they really didn't take time to add the drop down but the feature isn't officially in the game yet.

I'm really hoping this is major overlook and that they really didn't take time to add the drop down but the feature isn't officially in the game yet.