updated 06:26 pm EDT, Fri August 24, 2012
Update now available for iOS and Android
Facebook today began rolling out an update to its Messenger app, bringing the app to version 1.9. The new update includes a number of user interface alterations, as well as a few new capabilities. It also brings the app into direct integration with Facebook's main app for the first time.
The update adds full emoji support, one-click access to friends' Facebook Timelines, and indications marking whether or not a friend is active. The app now includes a "last active" indicator displaying the last time a friend logged into the messenger.
The updates are available for free in both the App Store and Play Store.