Google+ will receive a card-based interface redesign featuring a new three column view. The new interface is responsive to the user’s display size. The new multi-column view is customizable meaning you can toggle back to the previous single column view if you prefer.
Google+ will also begin rolling out intelligent hashtags for photos, meaning if you post a photo of the Eiffel Tower, Google+ can automatically recognize the subject and appropriately tag it for you.
Users will now be able to view related photos by clicking on the current photo and seeing related hashtags on the flip side of the photo. A video below highlighting the related hashtag feature is below.