There have been a couple key changes recently that have come together to affect this latest update to the Google+ app for Android. First, Google finally released Hangouts, its planned all-in-one chat app going forward; and second, Google killed off Latitude in order to put more location dependence on Google+...Source: http://www.phonearena.com/news/Google-for-Android-updated-removes-Messenger-adds-location-controls_id46401
