Here are the patch notes (1.0090.4717):
- Tweaks to balance all bosses in "Frozen Northlands" (Normal,Heroic and Brutal), slightly reduced damage
- Tweaks to balance Normal "Frozen Northlands" dungeon enemy type "Frost Spawn", slightly decreased health and damage
- Tweaks to balance Heroic "Gardens of Riana" dungeon enemy type "Swarming bees", slightly decreased health and damage