Patch 5.0.4 (2012-08-28): Now also deals an additional 20% damage against bleeding targets.
Patch 4.1.0 (2011-04-26): Swipe (Bear) cooldown has been reduced to 3 seconds, down from 6, and is now trainable at level 18 (training cost has been reduced). In addition, the bonus threat from this ability has been removed and replaced with increased damage done.
Patch 4.0.3a (2010-11-23): Damage has been reduced by 20%.
Patch 3.3.0 (2009-12-08): renamed Swipe to Swipe (Bear) to separate it from Swipe (Cat), range increased to 8 yards.
Patch 3.1.0 (2009-04-14): The [Bear Form] and [Dire Bear Form] version of this ability no longer has a targeting requirement and hits targets behind the druid and to the sides.
Patch 3.0.2 (2008-10-14): Now affects targets within a range. (Old, only affected 3 targets.)
Previously, threat generation was 1.75x damage done. Now the threat multiplier has been removed. However, the increased damage compensates the loss of threat, especially in AoE tanking scenarios.