Google has rolled out update to Google+ Android App with new features and overhaul of whole design. Google+ updated app is now live in Play store and you can also go to APKMirror to sideload it.
Google+ 7.0.0 has fixed nearly 70 bugs and 14 accessibility issues. Google+ new update has brought new design changes with the bottom tab bar now automatically hides when scrolling (but not on the Notifications screen yet). Google+ 7.0.0 team decided to highlight with its most recent redesign on the web.
According to Google, the update will roll out to users over the next couple of days.