I’ve just read about it. they said it in a press conference. it is the biggest also change since 2010 , they say that it won’t affect SEO and the major change is Conversational search , Google gave this example : " People, when speaking searches, may find it more useful to have a conversation.
“What’s the closest place to buy the iPhone 5s to my home?” A traditional search engine might focus on finding matches for words — finding a page that says “buy” and “iPhone 5s,”
it’s been up and running for about a month now with now one knowing...did it affect you in any way ?? go back about a month and check if you lost traffic or not . it’s interesting to see how this will effect.