With that in mind, the new update to the Google+ app has removed Messenger in favor of Hangouts, which we've expected for a while now. And, the app has also added much more granular location sharing controls. You can now control how accurate a location reading will be shared with certain circles. So, you can have your family and friends see exactly where you are, but maybe keep those you don't know in the dark.
The app has also made it much easier to switch accounts, and has added access to any photos or video you have in your Google Drive. Google is hinting that everything could be combined eventually, but right now it's just access. Lastly, Google Apps for Business is finally supported.
source: Google+
