"We've heard from so many people how much confusion there is around our recent update. There's been a lot of misinformation causing concern and we want to help everyone understand our principles and the facts," WhatsApp stated Friday announcing the delay.
In its statement on Friday, WhatsApp emphasized that its platform features end-to-end encryption, meaning neither WhatsApp nor Facebook can see any users' private messages. It has also assured that they don’t keep logs of who users are calling or messaging. WhatsApp said it can't see a person's shared location and that it doesn't share a user's contacts with Facebook.
Source: New York Times