Paladin

The mana costs of Blessing of Might and Blessing of Kings have been increased by approximately 217%, making them roughly equal to the cost of Mark of the Wild.
Crusader Strike weapon damage percent has been increased to 135%, up from 115%.
Divine Light mana cost has been increased by approximately 10%.
Divine Plea now lasts for 9 seconds, down from 15. It grants 4% mana per tick, instead of 2%, for a total of 12% mana, up from 10%.
Flash of Light mana cost has been increased by approximately 10%.
Forbearance
The duration has been lowered to 1 minute, down from 2.
Lay on Hands now causes Forbearance on the target. It used to only cause it when cast on the paladin. This was an old design from when Divine Protection caused Forbearance and the paladin didn’t want to prevent a tank from using their defensive cooldown.
Lay on Hands cannot be a critical effect and will not be affected by most abilities which modify healing (such as Beacon of Light). In addition, Lay on Hands is no longer on the global cooldown.
Since only Divine Shield, Lay on Hands and Hand of Protection cause Forbearance, the tooltips have been adjusted to better explain the mechanic.
Holy Light mana cost has been increased by approximately 10%.
Holy Wrath no longer counts nearby critters when dividing damage among its targets.
Inquisition is no longer dispellable.
Rebuke can now be trained by all paladins at level 54. Existing characters will need to visit their trainer, even if they had talented Rebuke before.
Seal of Truth: All single target attacks (including Judgement, Hammer of Wrath, Exorcism, and Templar’s Verdict) can now trigger this seal.

Talent Specializations

Holy
 
Aura Mastery: This ability no longer increases the benefit granted by Crusader Aura.
Denounce now has a spell overlay.
Protector of the Innocent heals for 30% less.

Protection

Eternal Glory: The chance to not consume Holy Power from this talent now also applies to not consuming the clearcasting effect generated by Divine Purpose.
Vindication no longer allows Hammer of Justice to interrupt stun-immune targets. With Rebuke baseline, this functionality is no longer necessary.

Retribution

Act of Sacrifice will no longer cause Cleanse to remove movement impairing effects from vehicles the paladin is riding.
Divine Purpose: The chance for applicable abilities to generate Holy Power has been reduced to 7/15%, down from 20/40%, but instead of generating 1 Holy Power, the next applicable ability used consumes no Holy Power and acts as if the paladin has 3 Holy Power.
Divine Storm weapon damage percent increased from 80% to 100%.
Hand of Light (Mastery): A percentage of the damage done by Templar’s Verdict, Crusader Strike, and Divine Storm is done as additional Holy damage. This Mastery now grants a 2.1% increase to Holy damage per mastery, down from 2.5%.
Repentance is no longer broken from damage done by Censure (Seal of Truth).
The Rebuke talent has been replaced with a new passive talent, Sacred Shield. Paladins who had Rebuke before will automatically have Sacred Shield. Sacred When reduced below 30% health, paladins gain the Sacred Shield effect. The Sacred Shield absorbs X damage and increases healing received by 20%. Lasts 15 seconds. This effect cannot occur more than once every 30 seconds. Undispellable.
Seals of Command will no longer trigger twice on each swing with Seal of Truth.
Zealotry is no longer dispellable.

Glyphs

Glyph of Divine Plea now adds 6% mana, for a total of 18% over 9 seconds.

Paladin Bug Fixes

The Silence debuff from Avenger’s Shield was using the Dazed visual effect, and its Daze debuff did not have a visible effect. This has been remedied.
The damage bonus from Communion is no longer applied even when the paladin has no paladin auras active.
Divine Storm no longer incorrectly highlights when Hand of Light procs.
Exorcism automatically re-targets whomever it does damage to when it finishes casting.
The healing amount in the buff tooltip for Holy Radiance is now accurate.
Pursuit of Justice is now providing Holy Power when the paladin gets stunned by the Fire mage talent Impact. Conversely, Pursuit of Justice is no longer granting Holy Power when the Paladin is hit by Holy Wrath.
Repentance tooltip now states that it does not break Censure damage.
Rank 1 of Shield of the Templar was reducing the cooldown of Guardian of Ancient Kings by 45 seconds, which is inconsistent with the scaling of ranks 2 and 3. This has been adjusted.
The tooltip for Tower of Radiance indicated that Holy Light would generate a charge of Holy Power. This has been fixed.
Word of Glory no longer resets the swing timer.

Glyph Fixes

The damage-over-time effect of Exorcism added by Glyph of Exorcism is now correctly affected by Exorcism’s damage.
The tooltip for Holy Wrath is now updated to reflect changes when Glyph of Holy Wrath is active.
The Glyph of Light of Dawn is now updating the tooltip for Light of Dawn.
The Glyph of Seal of Insight now requires level 32 to be consistent with when Seal of Insight can be learned from the trainer.
The Glyph of Templar’s Verdict is now updating the tooltip of Templar’s Verdict.