Uhhh it has been this way for a long time...Whats the "news" here?Well, I will not spoonfeed you but in short, if friend request you send goes unasnwered or denied, you are stopped from adding more friends.
Its no more 49 per day or 20 per day. Its now ratio wise. There is some defined value of acceptance, you fall below it, you are denied from adding more.