Hotfix (2014-11-25):Heart of the Wild's bonuses are now halved when used while in PvP combat.
Patch 6.0.2(2014-10-14): Redesigned. No longer provides an increase to Hit, Expertise, Stamina, Agility, and Intellect while active.
Patch 5.4.0(2013-09-10): When activated, now also provides a 25% bonus to healing for Restoration Druids.
Hotfix (2012-09-20):Non-Restoration Druids will now properly get a mana discount when casting [Cenarion Ward] while Heart of the Wild is active. Feral and Guardian Druids will also properly gain increased healing.
Patch 5.0.4(2012-08-28): Significantly redesigned as a level 90 talent for all druids instead of a Tier 1 Restoration talent. Now increases Stamina, Agility, and Intellect by 6% at all times. When activated, dramatically improves the Druid's ability to perform roles outside of their normal specialization for 45 sec.
Old: Increases your Intellect by 2/4/6%. In addition, while in Bear Form your Stamina is increased by 2/4/6% and while in Cat Form your attack power is increased by 3/7/10%.
Patch 4.0.3a(2010-11-23): The Bear Form Stamina bonus from this talent is now 2/4/6%, down from 3/7/10%.