|The subject of this article was removed in patch 4.0.1 but remains in World of Warcraft: Classic.
- Patch 4.0.1 (2010-10-12): Removed.
- Patch 3.0.2 (2008-10-14): Now a passive that increases stealth detection by 5 points, equivalent to 1 level.
- Patch 1.8.0 (2005-10-10): Perception is now usable while stealthed.
- Patch 1.4.0 (2005-04-19): Increased detection bonus.
- Patch 1.1.0 (2004-11-07): Added.