Facebook is rolling out a new feature called Chat Heads. Initially for iOS devices, it is designed to be a brand new way to chat.
On the iPhone and iPad, Facebook users will be able to continue chatting from anywhere within the app using "chat heads." Users can also send "stickers" to other users via chat. These changes will be available to everyone in the coming weeks.
Additionally, there are changes to the News feed on the iOS platform. For iPhone users, you can explore new feeds like Music, Photos and Games. On iPad, you can browse "brighter, more beautiful stories."
These adjustments to the News feed tracks with Facebook's earlier announcement that desktop news feeds were being revamped, and that mobile platforms would be adjusted over time to make the Facebook experience as seamless as possible across devices.