Firstly know I should link sources and I may come back and edit post later but it is getting late so I wanted to post the raw data. The EU servers had a restart and an update was applied with the following changes based off user response on forums:
- Act 1 Royal Crypt jars no longer drop gold
- Act 2 Ancient path goblin removed
- Act 2 Black Soulstone quests exp reward reduced in all difficulties to about 20% of their original value
- Act 2 Guardian tower spiders no longer drop gold
- Act 3 Resplendent chest in under-bridge and keep depths removed
- Act 3 Tyreal only does around 1.4k per swing now
- Act 3 Meteor that can kill the first pack of mobs on first quest no longer hits them
And there may be more I have not come across yet. One would think since EU have these changes, US will have them very soon. Although a little odd to begin with that US did not get it first.
Please note this is just a compiled list from user feedback and not all things are confirmed.