There is a privacy push in this release. Immediately after upgrade you will get a page letting you know that "Apple believes privacy is a fundamental human right…" and explaining steps they take to help with that, along with introducing a new icon which lets you know an Apple app is asking for personal information. That sounds like a way to train you to think about personal information differently, but I don't expect any users to read that screen or to know the icon. Darned users.

You can read a bit more about it here: http://www.idownloadblog.com/2018/01/25/ios-11-3-new-privacy...