In the latest update, users will be able to enjoy an updated design, video upload, messenger support, post detail page, photo commenting, the ability to edit comments, tagging improvements, upload improvements, performance improvements, the ability to view sticker comments as mentioned earlier, fixes for “dead end” notifications, fixes related to data sense settings, upload resiliency improvements, and general bug fixes.
If you have yet to make the update so that your Windows Phone runs on the latest version of the Facebook Beta app, what are you waiting for? It weighs in at a mere 11MB, so chances are you do not really need to hook it up to a Wi-Fi network to download this update as it would not eat too much into your data plan, and neither should it consume too much battery life during the downloading and updating process.