Facebook for Blackberry update v4.2.0.6 in Betazone

Facebook includes :

Right to Left language is fully supported

Ability to unlike a page functionality

Ability to share a post to user’s own timeline, a friend’s timeline or a group

UI improvements in messages quick view (unread messages are easier to distinguish)

UI improvements for messages screen (unread messages are easier to distinguish)

Unread notifications are automatically marked as read when user exits the application or refreshes the notifications quick view

Removed the “Refresh Messages” option from options screen. User will receive messages as long as the push notifications are enabled

Improved photo loading time from News Feed
Download : http://www.blackberry.com/beta