In the recent update for Hangouts app , text messages and Hangout conversations from the same contact are neatly merged into a single thread, allowing you to send notes via either method. And to be able to distinguish between texts and hangouts, the two sources are color-coded, and you can separate them any time you'd like. There's also a split in the contacts list for quick searching: folks you chat with on Hangouts and phone contacts that you keep to SMS. For easy access, there's a new home screen widget and improved quality for video calls.
Google+ post pages look different: posts are now moved to the right and there's a huge box that shows the name of the page or author and the number of followers. The new layout encourages people to follow pages and Google+ users, but makes posts more difficult to read. Here's an example pf a post from Gmail's Google+ page. SOURCE: Google Operating system