There are some changes related to revelation of strategic resources. For example, niter is now revealed with Military Engineering instead of Gunpowder. I am playing a PBEM and before the patch i had already researched Military Engineering. The first technology i finished after the patch was Gunpowder. But since the revelation of niter has been moved to Military Engineering, niter is not revealed at all after the patch. I eliminated two players early in the game and own a continent by my own. Nevertheless it might have been bad luck and there was simply no niter on my continent. Therefore, i double checked with an old save of the game. The old save was the turn in which i finished Military Engineering. 4 niter resources were then revealed.
There needs to be some check added in case that the revelation of resources is moved from one tech to another with a patch.
Before patch:
After patch:
There needs to be some check added in case that the revelation of resources is moved from one tech to another with a patch.
Before patch:
After patch: