Belfiore just tweeted about another Facebook app update, (this time is not for BETA)
The update includes features like Inline tagging, photo features, Unfriend/unlike and more.
Personally I think one of the best improvement is the back to the top button that shows up every time you scroll up.
Don’t take my word for it force update it here. http://www.windowsphone.com/s?appid=82a23635-5bd9-df11-a844-00237de2db9e …
(Side note: Facebook on WP beats Facebook on Android in almost every way, Its strange to think that even a flagship Android can give a stuttered Facebook experience! (LG G2). )