Resources discovered by random chance from improvements can not appear on terrain types they are not valid for
Display saved maintenance from buildings as negative (as in reducing maintenance costs)
Cut down on excess padding space in civic screen
Farms no longer give +1 food without irrigation or techs
Farms no longer get +1 food with machine tools
Jungle camp no longer gives +1 food without Naturopathy
Jungle camp on river gives +1 commerce instead of +2 commerce
Graveyard now obsoletes at Education instead of Philosophy