Bukkit

1.5.2_0:
 - Added basic 1.5.2 support

1.5.1_0:
 - Added basic 1.5.1 R2 support
 - Optimised some code

1.4.7_3:
 - Set override permission to default to false
 - Readded squid to the config (my bad ;))

1.4.7_0:
 - Added 1.4.7 compatibility and also legible error messages if you're using the wrong version :)

1.4.6_0:
 - Fixes the 'oh poop I'm flying 200 blocks in the air' problem
 - Added pack nature
 - Added customisable mob radii

1.4.2_0:
 - Added 1.4.2 support
 - Made attacks smoother
 - Made effects toggleable

1.3.2_6:
 - Added an immune permission
 - Added wheat preventing attack
 - Added always aggressive - toggleable per mob
 - And More!
 - Optimisation

1.3.2_4:
 - Added the option to have mobs attack until death or until players run away!

1.3.2_3:
 - Added support for all other passive mobs! YAY!
 - Added ability to enable/disable specific mobs
 - Added ability to set damage and height per mob
 - Added optional probability that mob will be aggressive

1.3.2_2:
 - Added functionality stated in overview
 - Added support for 1.3.2_2