Facebook is bringing more features to its app on the Windows Phone platform so you can get more or less the same experience as those on other operating systems. The app will supposedly offer a faster, more refined user experience. Aside from a new look, it also gets additional language support as well as support integration of the standalone Facebook Messenger app. The Windows Phone version of Facebook connects directly to People Hub for those running Windows Phone 8.1. And you can directly upload videos taken from your device straight through the app.
Source: Ubergizmo