Facebook beta is still the best version of the popular social network if you want all the latest direct from Microsoft. After being tested in the beta for a few weeks, the new features usually pop up in the official version, but you can get them early in the beta with no risk.
Tonight, version 188.8.131.52 is live in the Store, and although no new features are present, you do get those every so valuable "performance improvements and bug fixes" to brag about. The previous version was 184.108.40.206, so a bump of 0.0.0.1 is a very small fix, unlike the last update that brought Messenger integration.
Nevertheless, the update is now live to go grab it now and tell your friends!
Thanks, Moodi Darkness, for the tip!