Just a few updates to some dungeon monsters that will be patched in with the Anniversary Update tonight:

DUNGEON
Dead Man's Peak
Krorosh
Autoattack 2 (no cooldown) is no longer a cleave that hits multiple targets within 1.5m of the main target (ie the tank). It is now a single target skill.

Enslaved Warbringer/Summoned Warbringer
Autoattack 2 (no cooldown) is no longer a cleave that hits multiple targets within 1.5m of the main target. It is now a single target skill.

Skill 1 will continue to cleave and hit multiple targets around it's initial target, but the radius has been reduced from 3m to 1.5m. So melee should stand away from the tank (as always) to avoid cleave damage from this skill.
The damage, critical chance and defense penetration amount has been reduced considerably.
The cooldown has been increased from 8s to 15s.

Farseer/Enslaved Farseer/Summoned Farseer
The Fury of the Wind area buff of these monsters has been changed from +300 Movement Speed, +1000 Critical chance, and 20% Crit Damage Bonus - to +300 Movement Speed, +500 Critical chance, and 10% Crit Damage Bonus.

Melee classes should take considerably less splash damage during the Krorosh encounter now - providing they position themselves away from the tank. The only real danger is the final Frenzy phase where he summons both Farseers and Warbringers at the same time - and there is the high possibility of Warbringers getting their Critical chance and Crit Damage Bonus increased by the Farseer's Fury of the Wind buff. But providing the tank picks them up quickly they pose little danger.

Golden Temple (all modes)
Tomb Hawk
Piercing Screams skill that does area damage with no warning on the ground had it's damage reduced considerably, it's Hit chance, Crit chance, and Defense Penetration reduced.

Hard mode are now immune to Cast Time debuffs.
Normal mode are now immune to knockbacks, pulls and Cast Time debuffs.

This will prevent situations where the protection domes finish before they manage to finish casting their OHKO skill

Catacombs
Wasp Spawner
Area attacks no longer have Defense Penetration.