To prevent a cluttered mess when you have too many UGPs. Civilian units and Great People units are separated into their own groups.XP given by placing a leveled-up unit is now scaled properly if you play with Vox Populi.
Plot ownership and water terrain selection are also hidden when you're selecting a city plot.If you place an improvement on top of a city, then that city will corrupt.It's because you can't place a feature beneath a city, since it will get instantly removed.
So it won't be hidden when you have a lot of GPTI.
Including automatically applying the right plot type and terrain type when you place the new Natural Wonders to a plot. So then the added Natural Wonders are listed alongside vanilla Natural Wonders.