- Patch 5.0.4 (28 August 2012): No longer a talent.
- Patch 3.1.0 (14-Apr-2009): Is no longer a gorilla-specific family ability and is now available to all Tenacity pets. It has been reduced to one rank.
- Patch 3.0.3 (04-Nov-2008): Will no longer have a physical coefficient instead of a magical one.
- Patch 2.1.2 (2007-06-19): These abilities will now appear in the correct order in the pet training menu.
- Patch 1.12.0 (22-Aug-2006): The Ferocity talent now correctly applies to non-physical hunter pet abilities such as Lightning Breath and Thunderstomp.
- Patch 1.9.0 (03-Jan-2006): Added.