The extras are still under construction, but you can preview the new features by clicking “Try Hangouts with extras” when you start a hangout.
Another new feature worth noting is Search in Google+. Just type what you’re looking for into the Google+ search box and it will help you discover relevant people, posts, and popular content from the around the web.
Google plans on rolling out these new features over the next couple of days. You can learn more about these updates by visiting Google’s blog.
[Image credit: Robert Couse-Baker]