Patch 3.2.2 (2009-09-22): This form now also reduces the damage the druid takes while stunned by 15%.
Patch 3.1.0 (2009-04-14): Mana cost reduced.
Patch 3.0.8 (2009-01-20): Abolish Poison can now be used in Moonkin form.
Patch 3.0.2 (2008-10-14): No longer increases your attack power or causes you to regenerate mana off melee attacks, but now has a chance to cause you to instantly regenerate 2% of your total mana every time you critically hit with a spell.
Patch 2.0.10 (2007-03-06): The armor bonus from "Moonkin Form" has been increased from 360% to 400% (to match Dire Bear Form).
Patch 1.8.0 (2005-10-10): Significant talent changes. Added Moonkin Form.
Moonkin form wasn't in original WoW