Howdy fellow backstabbers!
With the new patch there were some "stealth fix", i had little time to play in the new quests but it seems that the mob's sound detection is fixed.
I think that's good enough, but it seems the Devs really did a great job on this one and as of yesterday if i assassinate a monster the others in the room don't get a tracer on me like in the past, instead they get a listen check and go to investigate the dead body!
This means that you can avoid them and as soon as the cooldown is up you can kill another one, and again and again, as long as you can manouver away from those investigating.
I think that's a great improvement over the past and hope it's not a bug.