Earlier today we saw Facebook v188.8.131.52 release to all BlackBerry Beta Zone members. However, it was later pulled. Luckily, for those who missed it, it was later leaked. Now it has officially released in App World.
It isn’t known what has changed from v184.108.40.206. The new version may be device specific for now as some users have reported that they cannot download .49 from App World. Have you been able to download it?