Patch 4.2.0 (28-Jun-2011): Swipe base damage has been increased to 929, up from 215. Attack power scaling has been decreased to 12.3%, down from 17.1%.
Patch 4.1.0 (26-Apr-2011): Swipe (Bear) cooldown has been reduced to 3 seconds, down from 6, and is now on 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 3.1.0 (14-Apr-2009): 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. Now properly affected by area-of-effect damage caps.
/Patch 3.0.2 (14-Oct-2008): 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 lost of threat, especially in AoE tanking scenarios.