Shaman

Chain Heal’s effectiveness has been increased by approximately 10%.
Flametongue Weapon procs now deal roughly 20% less damage.
Healing Rain now has a 40-yard range, up from 30, to be consistent with other shaman heals.
Hex now has a PvP duration of 8 seconds.
Purge now dispels a single effect instead of two.
Spiritwalker’s Grace duration has been increased to 15 seconds, up from 10.
Tremor Totem has been redesigned. The totem is now usable under Fear, Charm, or Sleep effects, and pulses much more rapidly, but lasts 6 seconds and has a 1-minute cooldown.
The Windfury Weapon proc can now trigger 3 additional attacks, up from 2.

Talent Specializations

Elemental Combat

Earthquake damage has been increased by approximately 10%.
Elemental Overload (Mastery) procs of Lightning Bolt or Chain Lightning can now generate Rolling Thunder charges.
Lava Burst’s damage has been increased by roughly 10%.

Enhancement

Flametongue Weapon damage now scales from attack power instead of spell power (for Enhancement shaman only).
Purge no longer has its mana cost reduced by Mental Quickness.

Restoration

Cleansing Waters no longer fires its heal effect twice when a shaman removes a Magic and a Curse debuff with a single cast.
Deep Healing (Mastery) has been increased to 3% per point, up from 2.5%.
Earth Shield can no longer be dispelled.
Greater Healing Wave mana cost has been increased by 10%; healing done has been increased by 20%.
Mana Tide Totem has been redesigned. The totem no longer multiplies the Spirit of those affected by it. It instead gives a flat amount of Spirit equal to 400% of the casting shaman’s Spirit, exclusive of short-term Spirit buffs affecting the shaman when the totem is dropped. In addition, its effects are now raid-wide.

Glyphs

Glyph of Hex now reduces the cooldown by 10 seconds, down from 15.

Shaman Bug Fixes

Ancestral Resolve correctly reduces the damage done by Chaos Bolt.
Earthquake’s mana cost is now correctly reduced by Elemental Focus’ clearcasting proc.
Elemental Oath properly increases the damage of Earthquake.
Player movement speed cannot be reduced below 100% while in Ghost Wolf if the player is or has been in an indoor environment.
Healing Rain shouldn’t fail to complete casting if a low-level player or NPC is within its targeted location.
Reincarnation can now correctly be used after Soulstone Resurrection or Rebirth has already been used on the shaman during a boss encounter.

Glyph Fixes

The tooltip for Elemental Mastery now updates after applying the Glyph of Elemental Mastery.
The spell buff icon for Ghost Wolf now updates when Glyph of Ghost Wolf is applied.
The spell tooltip for Grounding Totem now updates when Glyph of Grounding Totem is applied.
The tooltip for Healing Stream Totem now updates to reflect the additional benefit of 25 spell resistance granted by Glyph of Healing Stream Totem.
The spell tooltip for Healing Wave now updates when Glyph of Healing Wave is applied.