Below you can see a list of changes, which were made on 5.4.2 for one week, from 12.02.14 to 18.02.14:

General:

- Fix bug, when changes in Guild Emblem not saved.
- Fix show cooldowns for dungeons and raids in client interface.
- Fix bug, when items sent from auction, or from mail came broken.
- All libraries used by the core updated to the latest versions, should increase performance and stability.
- Fix 7 server crashes, another big step to stable work..

Dungeons and Raids:

Mogu'shan Vaults:

- Fix loot from all npc and bosses.
- Fix bug, when sometimes not works boss event The Spirit Kings.
- Fix bug, when can problem with 2 and 3 bosses and players can not kill their.

Spells:

Warlock:

- Fix scaling health, armor, spell power from owner, also min. max. dmg for this demon servants: http://www.wowhead.com/npc=417, http://www.wowhead.com/npc=416, http://www.wowhead.com/npc=1860, http://www.wowhead.com/npc=1863 and http://www.wowhead.com/npc=17252.
- Fix bug, when spell http://www.wowhead.com/spell=1949 not generate Demonic Fury and not correct atack targets.
- Fix spell http://www.wowhead.com/spell=104315.
- Fix bug, when spell http://www.wowhead.com/spell=108503 increased damage from spell http://www.wowhead.com/spell=689.
- Now http://www.wowhead.com/spell=77219 affect the damage demon servants.
- Fix bug, when cooldown for spell http://www.wowhead.com/spell=77801 set to 20 sec., because of use talent http://www.wowhead.com/spell=108505.
- Fix spell http://www.wowhead.com/spell=105174.
- Fix bug, when players use spell http://www.wowhead.com/spell=103958, spell http://www.wowhead.com/spell=689 started to not work properly.
- Fix spell http://www.wowhead.com/spell=131973.
- Fix spell http://www.wowhead.com/spell=19647 using by players, from http://www.wowhead.com/spell=108503.
- Now spells http://www.wowhead.com/spell=5782 and http://www.wowhead.com/spell=115268 have diminishing.
- Fix spell http://www.wowhead.com/spell=108563.
- In 2 times reduced damage by spell http://www.wowhead.com/spell=42223, because have double tick.
- Fix http://www.wowhead.com/item=45779.

Druid:

- Fix scaling from spell power for spell http://www.wowhead.com/spell=81269, now 129%, before 169%.
- Fix http://www.wowhead.com/item=89868.

Mage:

- In 2 times reduced damage by spell http://www.wowhead.com/spell=42208, because have double tick.
- Fix http://www.wowhead.com/item=43360.
- Fix http://www.wowhead.com/item=45738.
- Fix http://www.wowhead.com/item=43339.

Monk:

- Fix http://www.wowhead.com/item=87894.

Rogue:

- Some changes for talent http://www.wowhead.com/spell=115192.

Priest:

- Fix bug, when spell http://www.wowhead.com/spell=48045 can use for yourself.

Dungeon finder:

- Fix bug, when after teleport to another location, visually disappeared registration on Dungeon finder.
- Now freeze at loading instance with using Dungeon finder, should occur less frequently.