Facebook has launched an Android beta programme to give people who opt-in access to the latest versions of Facebook for Android before the general release. Facebook’s goals with this program are to expand its pool of testers and gain feedback across a more diverse set of devices. Just by using the app and reporting issues, beta testers will be able to help Facebook improve performance on a wide variety of Android devices they may have otherwise been unable to test at scale.
Further details can be found in this engineering blog post: https://www.facebook.com/notes/facebook-engineering/introducing-the-facebook-for-android-beta-testing-program/10151529228878920
To join the Beta program, follow these steps:
1) Join the Facebook for Android Beta Testers Google group
2) Allow beta downloads by clicking Become a Tester in the Play Store (you need to join the Google Group before becoming a tester)
3) Download Facebook from the Play Store to update your app
4) Join the Facebook for Android Beta Testers group on Facebook to tell us what you think