Below you can see a changelog, which was made on 5.4.2 for one week, from 19.02.14 to 25.02.14:

General:

- Fix guild bonus Cash Flow
- Fix 9 reasons of server crash.

Dungeons and Raids:

- Fix bug, when can not see boss Bronjahm in dungeon The Forge of Souls.
- Fix bug, when can not see boss Grand Warlock Alythess in dungeon Sunwell Plateau.

Imlemented new Cataclysm dungeons and raids:

Zul'Gurub.
Zul'Aman.
Baradin Hold.
Lost City of the Tol'vir.
Well of Eternity.
End Time.
Halls of Origination.

Spells:

Warlock:

- Now spell Soulburn correct works for spell Drain Life.
- Fix spell Soulburn: Seed of Corruption.
- Fix bug, when spell Touch of Chaos not extending the duration of Corruption.
- Fix bug, when spell Unstable Affliction not have silence when dispel.
- Fix spd scaling for spell Touch of Chaos.
- Fix spd scaling for spell Metamorphosis: Chaos Wave.
- Fix spell Metamorphosis: Immolation Aura.
- Now spell Dark Soul: Knowledge correct add mastery.
- Fix spell Soul Swap.
- Now PvP-Power correct affect for spell Drain Life.
- Fix hp and damange warlock demons with talent Grimoire of Supremacy.
- Fix Glyph of Healthstone.
- Fix Glyph of Drain Life.

Druid:

- Fix spell Genesis.
- Fix set bonus Feral Fury.
- Fix Mastery: Harmony.
- Fix double tick spell Efflorescence.
- Fix spell Living Seed.
- Fix talent Soul of the Forest in heal spec.
- Fix talent Ysera's Gift.
- Fix spell Cenarion Ward.
- Fix Glyph of Hurricane.
- Fix Glyph of Guided Stars.

Priest:

- Fix Glyph of Mind Flay.