Congrats to all my colleagues on this great new launch! The team writes,

There were two features they kept coming back to: Communities, which now average 1.2 million new joins per day, and Collections, which launched just five months ago and is growing even faster.

Today, we’re starting to introduce a fully redesigned Google+ that puts Communities and Collections front and center. Now focused around interests, the new Google+ is much simpler.

 For the more nerdily inclined, my boss Luke writes,

We moved to a mobile-first, responsive solution. Before home page weight: 22,600 KB After: 327 KB. And a much richer set of UI animations, transitions, & more. This is the same framework we launched on Google Photos earlier this year. Details here.

Feedback is of course welcome!