Facebook is sharing not only your data but all of your friends' data. This article today confirms Facebook is a big vacuum sucking up your life to sell you to others.
Regarding today's changes, Facebook is still sharing lots of data about you with others, just not as much as yesterday. It is still collecting, analyzing, and profiting from all the blue and red circles shown in this graphic. Remember: Facebook is a billion dollar advertising machine based upon your circles shown above.