Cosmetic remnants of the 25 years festivities which had still been in the game world have been removed.
The mechanic of coop loot distribution has been changed to make it in line with the mechanic of normal loot distribution.
This means that coop loot which has been static in numbers can now vary.
This change does not affect the average loot value which remains the same as before.
This change does not affect participation levels or the overall drop chance. Instead, where for instance you had a 50% drop chance to get 5 potions before, you now have a 50% drop chance to get 1-9 potions. This way, on average, the loot value stays the same, even if one might get lucky or unlucky in some fights.