Patch 7.1.0 (2016-10-25): Now shows up on the caster's nameplates.
Patch 7.0.3 (2016-07-19): Changed from a level 10 Subtlety ability to a level 15 Assassination talent and redesigned.
Hotfix (2014-12-18):Hemorrhage's periodic effect should now be able to critically strike.
Hotfix (2014-12-16):Hemorrhage's damage has increased by 30%.
Hotfix (2014-10-16):Hemorrhage's damage has been increased by 20%.
Patch 6.0.2 (2014-10-14): Periodic damage is now based on attack power (instead of the initial strike's damage), and ticks every 2 seconds. Damage has been adjusted to compensate.
Patch 5.4.0 (2013-09-10): Now deals 160% weapons damage (up from 140%); 232% weapons damage if a dagger is equipped (up from 203% for daggers).
Patch 5.0.4 (2012-08-28): Weapon damage reduced from 155% to 140%, dagger damage bonus changed to 203%, cost reduced from 35 to 30 Energy, causes the target to take 50% of the damage over 24 seconds, and no longer causes the target to take additional damage from bleed effects. Replaces Sinister Strike.
Patch 4.0.1 (2010-10-12): Changed to increase Bleed damage taken instead of all damage.
Patch 3.3.3 (2010-03-23): If the rogue has a dagger equipped, this ability now deals 160% weapon damage instead of 110%.