Paladins

Blessing of Light - Different ranks of this spell were stacking without causing additional effect. It was never intended for them to be able to stack, so they can no longer stack.
Judgement of Justice - This judgement will now always hit.
Righteous Fury - Righteous Fury will now always generate the correct amount of additional threat on all holy damage. There were some abilities, such as Retribution Aura, where this did not work correctly.
Holy Shock - This ability now works with Divine Favor and Illumination.
Holy Shield - Mana cost reduced approximately 15%. The effect now has a small bonus coefficient from spell damage items and effects.
Eye for an Eye - This talent can now trigger while you are mounted.
Blessing of Sacrifice - This Blessing can no longer be used to prevent the death of a target that is supposed to die for a spell effect (e.g.: Sacrifice, Demonic Sacrifice, Divine Intervention, Ritual of Doom).
Seal of Command - Will now be able to proc when the Paladin is silenced.
Improved Seal of Righteousness - Tooltip updated to reflect actual functionality. This talent increases Seal of Righteousness and Judgement of Righteousness by 3-15%.
Lay on Hands - Range increased.
Divine Intervention - Range increased.
Holy Shield - Tooltip updated to reflect that damage caused by Holy Shield causes 20% additional threat. This has been active since 1.9, but was undocumented.
All Greater Blessings now have increased range.
Holy Shock - Mana cost reduced.
Most creatures that were previously immune to Scorpid Sting are now also immune to the Paladin Talent Vindication.
Fixed problem where occasionaly repeated casts of Consecration will not deal damage.
If a paladin avoids damage with Divine Shield, Eye for an Eye will not react.
Fixed stacking of paladin auras so they overlap, but only the best aura in a given category is in effect.