Feeds update again from inside application once you open it.
Yes, I've also noticed it during the weekend, but I couldn't believe my eyes
"load more posts" link is also working fine.
FB chat still does not work, but Jabber/XMPP is working perfectly fine, only fb id needs to be used as a login (123456789987654321@chat.facebook.com), not a standard FB credentials.
Even though I can see feeds through the App, in feeds screen do not appear any more, after a recent restore from tweaked back-up.
Any ideas how to bring it back?
Edit 12/Nov/2015
I had a very stupid idea. I deleted the facebook account!
And now, of course, cannot create a new one!