Facebook updates iOS app with features from standalone Messenger and Camera apps

It's not folding all of its apps back into one, but Facebook has now rolled out an updated version of its main iOS app that incorporates some features first seen in its standalone apps. That includes the ability to swipe left anywhere in the app to see who's available to send a message to, as well as the ability to add the friends you message the most to the top of your favorites -- both features drawn from Messenger. You'll also get the new "upload flow" from Facebook's Camera app that promises to let you share multiple photos faster, and the ability to send Facebook Gifts directly from the app (although that remains a US-only feature).