Below you can see the changelog, which have been made on 5.4.8 for two last months, from 19.02.16 to 13.04.16:

Status: applied for all realms.

General:

- Have been added NPCs, by which the players can refuse green fire abilities for 500 gold, or learn the fire again (but only if you have completed the questline).
- Fixed the issue of achievement http://www.wowhead.com/achievement=1691/merrymaker through a special NPC (but only if you have completed all of criteria).
- The regular optimization of the core code. Now server delay is not increase, considering that the server has online 4k players.
- Continued work on the legendary cloak, the current state 4/5.
- Fixed a bug where in the newly created characters, could not be saved the command bar, due of large personal number.
- Improved passive anti-cheat, eliminated false positives, added function of auto-ban violators.
- Rewrote bonus loot system.
- Fixed mobs parry / dodge based of the attacker level.
- Fixed an exploit with the visibility of the character at the abolition of the starting video.
- Implemented changing quests when you change faction and added option to fix quests in a special NPC.
- Fixed exploit with alchemy potions.
- Fixed scaling of pets HP and armor.
- Fixed base speed of pets movement.
- Rewrote the work of rollers in the game based on the location of the character.
- Fixed a bug where sometimes transmogrification not saved when you exit from the game.

- Fixed more than 20 reasons of the server crash, including potential.
- Anothe fixe from Data Base section (quests, creatures, loot etc) you can find in Bug tracker, topics from 18.02.16 tо 12.04.16 (including), with messages from Herald.

Instances and raids:

Siege of Orgrimmar:

The Fallen Protectors:

- Fixed problem where He Softfoot used several toxins at once.
- Fixed problem where Desperation Spawn and Despair Spawn did not attack players immediately after the appearance.
- Fixed the ability "Extreme Measures" in He Softfoot.

Norushen:

- Fixed problem where the cleaning light doen't appear after repeated use.
- Fixed a problem, which caused a server error.
- Fixed receiving aura "purified" in the absence of corruption.
- Fixed the ability Expelled Corruption at the Essence of Corruption during the challenge, "Check tranquility".

Sha of Pride:

- Fixed problem where the ability "Corrupted prison" used on tanks and healers.
- Fixed timer of ability "Self-Reflection".
- Rewritten calculation players to release from prison desecrated.
- Fixed the ability "Final Gift".
- Fixed problem where the boss didn't use the ability "Final Gift" after a wipe.

Galakras:

- Added fixes to the boss

Iron Juggernaut:

- Added fixes to the boss

Throne of Thunder:

Council of Elders:

- Fixed loot at normal mode (25 players).

Durumu the Forgotten:

- Fixed loot in heroic mode.

Primordius:

- Fixed loot in heroic mode.

Dark Animus:

- Fixed loot in heroic mode.

Iron Qon:

- Fixed loot in heroic mode.

Twin Consorts:

- Fixed loot in heroic mode.

Lei Shen:

- Fixed loot in heroic mode.
- Fixed getting achievements in heroic mode.


Scenarios:

- Implemented the work of Assault on Zan'vess.
- Fixed reward for the passage of scenarios.
- Fixed flags in quests, which give reward for scenarios.

Dungeons and raids, another:

- Fixed the population of raid The Bastion of Twilight on complexity.
- Fixed a bug with the cooldown on the challenge mode.
- Fixed some problems with the preservation of cooldowns.

Items:

- Fixed http://www.wowhead.com/item=8529/noggenfogger-elixir in cooperation with mount.
- Fixed work of http://www.wowhead.com/item=94526/spark-of-zandalar
- Fixed loot from http://www.wowhead.com/item=87539/cr...logy-fragments
- Fixed work of http://www.wowhead.com/item=94507/st...do-pan-assault
- Fixed receiving of some items, such as: Crystallized fear.
- Fixed work http://www.wowhead.com/item=75016/gr...ndaren-banquet and analogues.
- Fixed work of http://www.wowhead.com/item=86566/foragers-gloves
- Fixed work of http://www.wowhead.com/item=102292/a...of-consequence
- Fixed combination http://www.wowhead.com/item=78883/darkmoon-firewater with analogues
- Fixed bug when you can't use http://www.wowhead.com/item=103531/p...ion-of-cruelty and analogues
- Fixed work of http://www.wowhead.com/item=92019/th...ewater-molotov
- Fixed exploit of http://www.wowhead.com/item=91902/universal-remote
- Fixed bug, when http://www.wowhead.com/item=103641/singing-crystal worked in pvp
- Fixed exploit of http://www.wowhead.com/item=86589/ai-lis-skymirror
- Fixed work of http://www.wowhead.com/item=94515/fa...ther-of-ji-kun

Cross server:

- Fixed work of addon spectator arena.
- Fixed bug with aura of http://www.wowhead.com/spell=45831/icewing-marshal
- Fixed an exploit with the spectator in the arena Tol'vir.
- Implemented synchronization of status and quests with cross server.
- Fixed an exploit with which spam can be a variety of packages in the group and reduce FPS, which could also adversely affect the performance of the server cross.
- Fixed a number of places in the code where the memory leak occurred.

- Fixed 4 reasons the fall of the cross server.

Spells and talents:

Hunter:

- Fixed spell interaction with http://www.wowhead.com/spell=6713/disarm http://www.wowhead.com/spell=109259/powershot http://wowhead.com/spell=19434 http://wowhead.com/spell=56641 http://wowhead.com/spell=77767
- Fixed formula http://mop.wowroad.info/?spell=3674
- Fixed a bug with the concentration regeneration, now in it affects the speed, etc.
- Fixed an exploit with the traps associated with the synchronization of movement.
- Fixed height when using http://www.wowhead.com/spell=781
- Fixed several exploits, when the players were the talents of the different specializations on the same level.
- Fixed an exploit with a bonus set http://mop.wowroad.info/?spell=23559.
- Changes in the mechanics of the spell work http://wowhead.com/spell=50733
- Fixed a bug with the increased amount concentrations used at a miss.
- Fixed problems with cooldowns when interacting spells http://wowhead.com/spell=19434 and http://mop.wowroad.info/?spell=34487.
- Fixed a bug with reflection http://wowhead.com/spell=19263 and http://wowhead.com/spell=100
- Fixed range for http://wowhead.com/spell=13809.
- Fixed a bug where http://wowhead.com/spell=53184 isn't increased critical chance pet.
- Added a number of tests when cast spell http://mop.wowroad.info/?spell=51753.
- Fixed a bug where under the http://wowhead.com/spell=19263 in the character goes through a series of controls.
- Edits in the work of http://wowhead.com/spell=115939

Druid:

- Fixed a bug where it was possible to keep the effect of http://wowhead.com/spell=1850 in any form.
- Fixed conditions for triggering of spell http://wowhead.com/spell=93399
- Fixed dispel of poisons by using http://mop.wowroad.info/?spell=88423
- Rewrote work of talent http://wowhead.com/spell=108291
- Edits to the bug ( buttle mode ), after healing http://mop.wowroad.info/?spell=145108
- Fixed set bonus http://wowhead.com/spell=138286/item...ation-4p-bonus and http://wowhead.com/spell=138348/item...lance-2p-bonus

Priest:

- Fixed a bug where http://wowhead.com/spell=112833 after use, you can bring a variety of spells incorrect.
- Fixed amount of healing in the http://wowhead.com/spell=47788
- Fixed a bug with the help heal raid http://wowhead.com/spell=88685
- Fixed incorrect triggering conditions of the talent http://wowhead.com/spell=109186
- Fixed condition response of skill http://mop.wowroad.info/?spell=108945

Monk:

- Fixed activation conditions spell http://mop.wowroad.info/?spell=139598
- Fixed impact forces on PvP http://mop.wowroad.info/?spell=116849
- Added check the number of goals of the spell http://mop.wowroad.info/?spell=116645
- Changes in the part 2 pvp set

Death Knight:

- Fixed a bug when pets DC could have incorrect spells.
- Fixed a bug with the number of stacks http://mop.wowroad.info/?spell=49572
- Fixed an exploit when DC can be active at once 2 force.
- Fixed a bug where runes went on a mini cd with parry / miss / evasion spells.
- Rewritten spell work http://mop.wowroad.info/?spell=50842
- Changes in the spell http://mop.wowroad.info/?spell=45529

Warlock:

- Fixed bonus to damage http://mop.wowroad.info/?spell=114592 from mastery
- Fixed a bug where the presence of certain buffs on the target, can not be used http://wowhead.com/spell=20707
- Rewritten spell work http://mop.wowroad.info/?spell=113890
- Rewritten call http://mop.wowroad.info/?npc=55659

Shaman:

- Fixed a bug with increased healing from spells http://mop.wowroad.info/?spell=51730 on low lvl
- Fixed a bug where the spell http://wowhead.com/spell=112858 stopped working when changing the spec.
- Fixed spell work http://mop.wowroad.info/?spell=117012 for http://mop.wowroad.info/?spell=51730
- Changes in the spell http://mop.wowroad.info/?spell=118473
- Fixed a bug where stan from http://ru.wowhead.com/spell=108269 could reflect and he did not hang up on purpose.

Warrior:

- Fixed amount of rage when used parry, dodge and miss.
- Fixed flags for banners warrior.
- Fixed a bug where you could not use http://wowhead.com/spell=114029 on http://wowhead.com/spell=114192.
- Fixed a bug where http://mop.wowroad.info/?spell=76856 sometimes can't work under certain conditions.

Paladin:

- Fixed a bug where using http://wowhead.com/spell=1022 can not be removed by http://mop.wowroad.info/?spell=20511

Mage:

- Fixed use mage portals in the arena.

Spells, talents and others:

- Fixed problem when using certain spells with the effect of discarding, bugged movement in NPC.
- On the skills and miles of damage pets now properly affect PvP Power of master.
- Fixed spell hit in range dps classes.
- Fixed mechanics of skill with the effect of rolling back.
- Now autoattacks of pets, affect crit chance of the master.
- Changes to calculation skills that have a certain trajectory.
- Fixed a bug with stacks of many buffs on pets.
- Fixed orientation when using the skill http://wowhead.com/spell=126392.
- Fixed a bug where pets can have a double critical chance.

* Do not forget to delete the Cache folder from the root folder of the game after each update.
** Also you should pay attention that in spite of the long period between the writing of the changelogs, work on bugs does not stop and fixes are applying for all realms a few times a month.
*** Some fixes will be applied after the restart at 09:00 13.04.16.