Official Facebook app or Facebook BETA?

[ahmadsamhann]

I updated my cover pic on fb but the facebook beta live tile is not updating the cover photo on the tile... What should i do???

remove and re-pin the tile

 

[jtanigawa]

I have a Lumia 1520 RM-937 and the last update to Beta has made push notifications extremely delayed AGAIN. How is the delivery speed of the push notifications on the official version?