The Headless Horseman Boss from town invasions:

• is now exempt from Group Loot (automatic loot sharing between groupmates)
• will now have a chance to give loot directly to participants that have done at least 1% damage to the boss, including damage from pets or summons (items will go directly to players backpacks)
• has had its on-corpse loot reduced in lieu of the direct-to-player loot