Facebook is killing its Facebook Beta app for Windows Phone. The company has been testing new features for its Windows Phone app via its Beta app for a while now, and the beta was available to the public, too. However, the company recently released a new update for the Beta app which disables the app, asking users to use the public Facebook app. According to Facebook, the beta app is outdated, and the public app is apparently newer than the Beta app which is slightly interesting.
Since the Facebook Beta app is no longer usable, you can try out the official Facebook app from this link.