Below you can see the changelog, which were made on 5.4.8 for two last months, from 14.04.16 to 14.06.16:

Status: applied for all realms.

General:
- Fixed an issue where players could not see the scripted dialogues of NPC.
- Fixed possible incorrect movements of mobs.
- Fixed an increase of pet's speed movement when its owner uses the mount. Now they will run as fast as the player, to keep up.
- Fixed a problem with health regeneration at mobs with a lot of health.
- Added the possibility to complete a number of new achievements via a special NPC, for example: http://www.wowhead.com/achievement=2798
- Fixed bug with incorrect selection of items from the loot on player specialization.
- Fixed bug of mana amount while changing the spec.
- Fixed problem with displaying the weekly cap currency.
- Fixed an issue with the inability to obtain currency, when a player reaches the total cap currency, but has not reached the weekly cap currency, and then spent a part of the currency.
- Fixed a bug with the inability to use the resources after the change of the spec until you made a relog.
- Now the player can not buy Justice points for Honor points if the total number of Justice points exceeds the maximum of its amount.
- Added check for the presence talents of several specs when loading the player.
- Fixed display of the information about the name of the person who sent the message by mail.

- Fixed 6 reasons of server crash.
- All Data Base fixes (quests, creatures, loot etc) you can look at this section (from 14.04.16 tо 14.06.16), with messages from Herald.

Instances and raids:

Siege of Orgrimmar:

Sha of Pride:

- Fixed a possible exploit with aura http://wowhead.com/spell=144863.
- Fixed the ability http://wowhead.com/spell=146595.
- Fixed ability http://wowhead.com/spell=144364.
- Fixed the ability http://wowhead.com/spell=144863.
- Fixed an issue when in the 2nd phase the boss continued to use the ability of the 1st phase.
- The ability http://wowhead.com/spell=144800 will be applied to the players with the highest level of pride.

Immerseus:

- Fixed a problem with the speed of the infected puddles.
- Fixed saving dungeon cd after passing the boss.
- Fixed the damage of http://wowhead.com/spell=143413.

Fallen Protectors:

- Added dialogs bosses.
- Fixed possibility to interrupt casting of Sha Sear and Corruption Shock.
- Now the ability Inferno Strike will be applied to a random player.
- Fixed an issue where Rook Stonetoe stopped moving after using the ability Clash.
- Fixed an issue where He Softfoot stopped moving after using the ability Shadowstep.
- Fixed an issue where the bosses have used abilities http://wowhead.com/spell=143027, http://wowhead.com/spell=143225, http://wowhead.com/spell=143210 and http://wowhead.com/spell=143491 during extreme measures.
- Fixed an issue where the bosses did not interrupt casting abilities upon the occurrence of the extreme measures.

Galakras:

- A lot of fixes to the guns.
- Ability Shattering Roar now will not do damage to players which are on the towers.
- Added valor points as the rewards.
- Added bonus loot.
- Fixed an issue where the debuff Flames of Galakrond was not applied, if it already had one stack.
- Reduced the time of disappearance corpses of dead mobs.

Iron Juggernaut:

- Added valor points as the rewards.
- Added bonus loot.
- Fixed a dialogue after the boss's death.
- Fixed the number of health in the 25-player mode.

Norushen:

- Fixed a number of items from the loot in the 25-player mode.

Kor'kron Shamans:

- Implemented scripts bosses, also loot and achievements are already available.

General Nazgrim:

- Implemented script of the boss, also loot and achievements are already available.

Malkorok:

- Implemented script of the boss.

Other:

- Added mobs after Galakras.
- Fixed an exploit with aura overcome.
- Fixed a problem with Healing Tide Totem's healing.
- Fixed some issues with the doors opening.
- Now, after the killing of the Fallen Protectors players at the entrance to the dungeon will be teleported to Norushen.
- Added http://www.wowhead.com/object=223521.
- Added NPCs:
* http://wowhead.com/npc=73887, http://wowhead.com/npc=73889, http://wowhead.com/npc=73917,
* http://wowhead.com/npc=72131, http://wowhead.com/npc=72191, http://wowhead.com/npc=72438,
* http://wowhead.com/npc=72192, http://wowhead.com/npc=72194, http://wowhead.com/npc=72150, http://wowhead.com/npc=71771, http://wowhead.com/npc=71772.

Terrace of Endless Spring:

- Fixed an issue where from the boss Lei Shi in the10 normal mode, the players got loot from the 10 heroic mode.

Throne of Thunder:

- Added missing valor points from the bosses.

Terrace of Endless Spring:

- Fixed the settlement of the dungeon according to its mode.

Dragon Soul:

- Fixed the settlement of the dungeon according to its mode.

Throne of the Four Winds:

- Fixed the settlement of the dungeon according to its mode.

Baradin Hold:

- Fixed the settlement of the dungeon according to its mode.

Firelands:

- Fixed the settlement of the dungeon according to its mode.
- Fixed issue with endless summoning of http://wowhead.com/npc=52593.
- Fixed http://wowhead.com/spell=98476 .

LFR, challenge mode, scenarios:

- Fixed NPC and object settlement in the challenge mode, the dungeon Stormstout Brewery.
- Improved the script of Black Temple.
- Increased the number of valor points gained in the first dungeon of the 5-player heroic mode, from 5 to 80 points.
- Increased the number of valor points gained over the next dungeon of the 5-player heroic mode, from 5 to 40 points.
- Increased the number of valor points gained for the first common scenario, with 30 to 50 points.
- Reduced the number of valor points gained over the next ordinary scenario, from 30 to 25 points.
- Fixed issues with rewards for the 1st passed scenario and dungeon for 5 players.
- Increased reward for passing the challenges:
* For the gold from 60 to 165 Valor Points.
* For silver from 50 to 150 Valor Points.
* For the bronze from 40 to 125 Valor Points.

World bosses:

Sha of Anger:

- Fixes to the boss.

Nalak:

- Refactoring of the code.
- Fixed an issue where the boss evaded when was attacking.
- Fixed an issue where auras Storm Cloud and Lightning Tether could be rejected.
- Fixed a quest Spirit of the Lord of Storms.

A Celestial Experience:

- General fixes to battle scripts.
- Added dialogs of Xuen boss.
- Implemented a script boss Chi-Ji.

Arena and BG:

- Rewritten storing the data about the player from the cross server, which in theory should to solve the problem with the appearance of lags for a few seconds and the cross crash, which occurred because of an unresponsive transaction because of loss packet inside the network.
- Fixed a bug with druid speed at the entrance to BG.
- Fixed a bug with the disappearance of the display points on BG Deepwind Gorge.
- Fixed displaying information about gates the number of hp on BG.
- Fixed several bugs in the table on BG Temple of Kotmogu.
- Strand of the Ancients:
* Fixed display of the timer about ending the round / battle.
* Fixed teleport coordinates in all rounds.
* Fixed an exploit with using of the relics.
* Fixed bombs on the docks.
- Deepwind Gorge:
* Fixed a bug with the disappearance of the display points.
* Added speed limit of trolleys movement.
* Now you can cast spells having the trolley.
* A number of fixes to the trolleys movement.
* Prevention of death in the trolley.

Items:

- Implemented work of the item http://wowhead.com/item=102298.
- Fixed an exploit with the item http://wowhead.com/item=104321.
- Implemented work of the item http://wowhead.com/item=93403.
- Fixed a bug with a false work of anti-cheat while using http://wowhead.com/item=104299 and http://wowhead.com/item=126389.
- Fixed a bug with the camera when you're on the mounts like this type of the mount http://wowhead.com/item=109013.
- Fixed an increase of speed from items http://wowhead.com/item=102293 and http://wowhead.com/item=102299.
- Fixed duration the work of elixir http://wowhead.com/item=40078.
- Fixed http://wowhead.com/item=98163.
- Fixed a bug with the loss of the items bonuses (all versions): http://wowhead.com/item=104725, http://wowhead.com/item=104744, http://wowhead.com/item=104821, when teleporting or the death.
- Fixed item http://wowhead.com/item=94232.
- Fixed an exploit with the healing of the item http://wowhead.com/item=104518.
- Implemented the work of all the tokens from the Timeless Isle, for example: http://wowhead.com/item=102276.
- Implemented work of the item http://wowhead.com/item=38578.
- Implemented spell work of the items http://wowhead.com/spell=146025, http://wowhead.com/spell=146136, http://wowhead.com/spell=146346, http://wowhead.com/spell=146059, http://wowhead.com/spell=146176 for a variety of items (look for links).
- Fixed an exploit with the item http://wowhead.com/item=101538.
- Fixed the items: http://wowhead.com/item=102308, http://wowhead.com/item=102310, http://wowhead.com/item=104865, http://wowhead.com/item=104868.
- Fixed an exploit with the item http://wowhead.com/item=40216.

Scripts of quests.

- Fixed an issue where it was not possible to complete the quest Do not Kill the Fat One.
- Fixed a selection of quest rewards Carp Diem.
- Fixed call spirits in the quest A Curse Upon Both of Your Clans !.
- Fixed phasing in the quest The Battle For The Ebon Hold for worgens and goblins.
- Fixed an aura the strength of Mograine for the quest The Battle For The Ebon Hold.
- Fixes to the quests in the starting locations, where it is necessary to use the ability to dummy.
- Implemented scripts for Money Matters quest.
- Implemented the scripts for the quest A Gift For Fung.
- Implemented the scripts for the quest A Gift For Jogu.

Questline on getting the legendary cloak

- Fixed the ending of the scenario for the quest Thunder Forge.
- Fixed possible problem with taking the quests Secrets of the First Empire, and I need a champion.
- Fixes to dialogues and scenes.
- Added the npc http://wowhead.com/npc=70100 for quest http://wowhead.com/quest=32593.
- Implemented the work of quest http://wowhead.com/quest=32595.
- Implemented the work of quest http://wowhead.com/quest=32596.
- Fixed getting the quest http://wowhead.com/quest=32597.
- Added scene of getting the quest http://wowhead.com/quest=32805.

Spells and talents:

Hunter:

- Fixed http://wowhead.com/spell=119449 when interacting with a pet.
- More fixes to scaling the health of the hunter pets.
- Fixed a bug where at using http://wowhead.com/spell=53209, on targets, to targets that do not die from this shot under the aspect of the Cheetah / pack, the player had got the Dazed.
- Fixed a bug where if you change the spec, the effect of http://wowhead.com/spell=56315 stopped to work.
- Now http://wowhead.com/spell=60192 you can apply in http://wowhead.com/spell=126135 and http://wowhead.com/spell=115313.
- Fixed work of http://wowhead.com/spell=13813 to http://wowhead.com/spell=115313, http://wowhead.com/spell=126135, http://wowhead.com/npc=59190 and shaman totems.
- Now passive abilities of the spells http://wowhead.com/spell=17253 and http://wowhead.com/spell=16827 correct works at 50 concentration points, and not 75.
- Fixed the damage of http://wowhead.com/spell=17253 and http://wowhead.com/spell=16827.
- Fixed http://wowhead.com/spell=34026.
- Fixed scaling of pets accuracy from the hunters.
- Fixed http://wowhead.com/spell=53271.
- Fixed interrupt auto attack of the hunters while casting of any spell that has cast time. For example: http://wowhead.com/spell=19434.
- Fixed interrupt of hunter spells when he gets disarm. Some of them need not be interrupted. For example: http://wowhead.com/spell=1513.
- Fixed the damage formula of spells http://wowhead.com/spell=16827 and http://wowhead.com/spell=17253, it was increased.

Priest:

- Fixed a bug where http://wowhead.com/spell=724 could not be attacked in the arena.
- Fixed the damage formula and mechanic work of spell http://wowhead.com/spell=2944.
- Fixed impact of the mastery on spell http://wowhead.com/spell=81749.
- Fixed mechanics of talent http://wowhead.com/spell=109964.
- Fixed a number of healing for the http://wowhead.com/spell=47788.
- Fixed the damage and healing of spell http://wowhead.com/spell=127632, when the player is in http://wowhead.com/spell=15473.
- Fixed the dependence of duration the spell http://wowhead.com/spell=64044 from the number of orbs.
- Fixed an influence of http://wowhead.com/spell=134732 on the mastery of http://wowhead.com/spell=77489.
- Fixed http://wowhead.com/spell=55673.
- Fixed a number of hops for http://wowhead.com/spell=121135.
- Fixed double healing of http://wowhead.com/spell=15286.
- Fixed scaling of spell power for http://wowhead.com/spell=78203.
- Fixes to work of http://wowhead.com/spell=132157.
- Fixed conditions for work of http://wowhead.com/spell=15290.
- Fixed radius of spell http://wowhead.com/spell=62618.

Druid:

- Fixed a bonus set of equipment for t15 restor.
- Now druid gets healing when http://wowhead.com/spell=33763 dispeling.
- Fixed work of http://wowhead.com/spell=145529 in BG.
- Fixed http://wowhead.com/spell=1079.
- Spell http://wowhead.com/spell=110696, getting from http://wowhead.com/spell=110309, now you can use it being under the fear.
- Fixed http://wowhead.com/spell=33763.
- Fixed speed of casting the spell http://wowhead.com/spell=50769 while a player has http://wowhead.com/spell=114108.
- Fixed a number of periodic healing of spell http://wowhead.com/spell=33763.
- Fixed a healing of spell http://wowhead.com/spell=102791, also no longer heals itself.
- Fixed http://wowhead.com/spell=81269.
- Fixed scaling the healing of http://wowhead.com/spell=44203 from the player.
- Fixed bug with healing being in the raid by spell http://wowhead.com/spell=145518.
- Fixed the effect http://wowhead.com/spell=134735 and http://wowhead.com/spell=110310 on the healing from http://wowhead.com/spell=102792.
- Fixed radius of spell http://wowhead.com/spell=145518.
- Fixed the duration of the spell http://wowhead.com/spell=62606.
- Fixed cooldown of the spell http://wowhead.com/spell=102355 при активном http://wowhead.com/spell=114237.
- Fixes to the terms of caste spell http://wowhead.com/spell=6795.
- Fixed calculation of HP regeneration for http://wowhead.com/spell=22842.

Paladin:

- Fixed a bug where using http://wowhead.com/spell=54938, you could deal damage to players whose PvP mode is off or in the sanctuary.
- Fixed http://wowhead.com/spell=53563.
- Fixed the use of spells http://wowhead.com/spell=85673 on friendly targets who are not players.
- Fixed work of spell http://wowhead.com/spell=85673 с http://wowhead.com/spell=54938.
- Fixed impact of hit modifier by spell http://wowhead.com/spell=112859 on http://wowhead.com/spell=20271.
- Fixed the spell duration of http://wowhead.com/spell=20066 in pvp mode.
- Fixed the spell impact of http://wowhead.com/spell=85804 on spells http://wowhead.com/spell=82327 and http://wowhead.com/spell=82326.
- Fixed a number of healing from http://wowhead.com/spell=146956.
- Fixed the impact of pvp power on spell http://wowhead.com/spell=20925.
- Fixed impact of auras that reduce damage to the player for the spell http://wowhead.com/spell=114157.
- Fixed gcd of spell http://wowhead.com/spell=77130 в случае, если нечего диспелить.
- Fixed a number of healing and damage when dispel the spell http://wowhead.com/spell=114157.
- Fixed http://wowhead.com/spell=54939.
- Fixed an issue with duplicating code and, possibly, with a double effect for spell http://wowhead.com/spell=121129.

Warrior:

- Fixed a bug where does not always work the bonus damage from http://wowhead.com/spell=76856.
- Fixed work of http://wowhead.com/spell=3411.
- Fixed dropping of the maximum value of the Warrior rage, if he has http://wowhead.com/item=43399 and at the same time he changes the spec.
- Fixed double modification of damage http://wowhead.com/spell=76856 for http://wowhead.com/spell=118000.
- Fixed work of http://wowhead.com/spell=81099.
- Fixed the damage of http://wowhead.com/spell=46968.
- Fixed bonus of 4 items in set of equipment T15 http://wowhead.com/item-set=1172.

Shaman:

- Fixed http://wowhead.com/spell=108280.
- Fixed work of http://wowhead.com/spell=117012 for http://wowhead.com/spell=73920.
- Fixed the impact of spells http://wowhead.com/spell=16278 and http://wowhead.com/spell=73681 on auto-attack by the left hand.
- Fixed work of http://wowhead.com/spell=77657.
- Fixed bonus of 4 items in set of equipment: http://wowhead.com/item-set=1170.
- Fixed work of http://wowhead.com/spell=51530 с ударом левой рукой.
- Implemented bonus of 2 and 4 things from: http://wowhead.com/itemset=1169.
- Fixed healing of pets by spell http://wowhead.com/spell=73920.
- Fixed the impact of http://wowhead.com/spell=110310 on absorb of http://wowhead.com/spell=108270.
- Fixed an exaggerated healing spell http://wowhead.com/spell=5394.
- Fixed the terms for work of http://wowhead.com/spell=51530.
- Fixed healing of pets by spell http://wowhead.com/spell=5394.
- Fixed the terms for work of http://wowhead.com/spell=108283.

Warlock:

- Fixed warlock pets critical chance.
- Fixed mechanics of work http://wowhead.com/spell=108683.
- Fixed increased pets energy damage under the influence of http://wowhead.com/spell=108499.
- Fixed the damage of http://wowhead.com/spell=105174.
- Fixed http://wowhead.com/spell=56249.
- Fixed work ofhttp://wowhead.com/spell=114925.
- Fixed a bug when http://wowhead.com/spell=86121 could be reflected.
- Rewritten the work of http://wowhead.com/spell=122355.
- Fixed http://wowhead.com/spell=58080.
- Fixed work of spells http://wowhead.com/spell=115236 and http://wowhead.com/spell=115232.

Mage:

- Fixed coordinates of teleport for http://wowhead.com/spell=132620.
- Fixed the impact of proc http://wowhead.com/spell=44549 on http://wowhead.com/spell=12982, when the player cast a spell http://wowhead.com/spell=44614.
- Now spell http://wowhead.com/spell=44549 correct work only from the last imposed aura, and not from the all.
- A number of fixes to the casting of http://wowhead.com/spell=63093.
- Rewritten work for the visual part of http://wowhead.com/spell=44544.
- Fixes to cast of http://wowhead.com/spell=11958.

Death Knight:

- Fixed mechanics of death runes and misses.
- Fixed cd for Runes while synchronization.
- Fixed terms of work http://wowhead.com/spell=91342.
- Fixed a number of targets in the spell http://wowhead.com/spell=48721.
- Fixed http://wowhead.com/spell=58629.
- Fixed damage for the pet from spells http://wowhead.com/spell=48743.
- Fixed http://www.wowhead.com/item=104099.
- Fixed http://wowhead.com/spell=59307.
- Fixed http://wowhead.com/spell=58677.

Rogue:

- Fixed the impact of http://wowhead.com/spell=76803 on http://wowhead.com/spell=79136.
- Fixed a bug with overlaying of a spell effect http://wowhead.com/spell=76577 when the target has http://wowhead.com/spell=642.
- Fixed work of http://wowhead.com/spell=26679.
- Fixes to work of http://wowhead.com/spell=79147.

Monk:

- Fixed an extension of the duration of the spell http://wowhead.com/spell=115307 when using the spell http://wowhead.com/spell=100784.
- Fixed the damage of spell http://wowhead.com/spell=115072.
- Removed modification heals of http://wowhead.com/spell=128595 by other auras.
- Fixed the damage of spell http://wowhead.com/spell=127361.
- Completely rewritten work of http://wowhead.com/spell=115295.
- Fixed an increase of the absorb shield spell http://wowhead.com/spell=115295 by http://wowhead.com/spell=118636.
- Fixed work of http://wowhead.com/spell=130324.
- Fixed http://wowhead.com/spell=115213.
- Implemented work of http://wowhead.com/spell=115543.
- Rewritten work of http://wowhead.com/spell=115315 и http://wowhead.com/spell=115313.
- Fixed scaling the damage of http://wowhead.com/spell=124507.
- Fixed bonus of http://wowhead.com/spell=145439.
- Fixed a number of bugs at http://wowhead.com/spell=146953.
- Rewritten work of http://wowhead.com/spell=124081.
- Fixed work of http://wowhead.com/spell=115460.
- Implemented work of http://wowhead.com/spell=137562.


Spells, talents and others:

- Fixed Goblin glider after the previous fixes.
- Fixed a number of exploits with macros to spells that have multiple charges.
- Fixed work of spec bonuses on all the armor.
- Fixed a stack of spells http://wowhead.com/spell=1490 and http://wowhead.com/spell=7386.
- Fixed all known exploits in the spell system that reproduced by using cheat programs.
- Fixed an issue where the auras influencing the cost of spell could be removed from the player when the spamming of some spells, because of the spell was still in GCD. Example: http://wowhead.com/spell=145162.
- Fixed incorrect calculation of damage and healing for spells, when the caster's damage decreased from 100% (eg, from the aura [URL]http://wowhead.com/spell=144421[/ URL]).
- Improved scripting mechanism for auras absorbing the heal.
- Completely rewritten the system of spell diminishing, updated all groups.
- Implemented correct system of RPPM for trinkets.
- Implemented work of aura http://mop.wowhead.com/?spell=130609.
- Spells category "Armor Specialization" removed at the characters and will be re-learned, because they must be issued only at accordance of the armor (before it did not work properly), now it should to fix the problem with inflated stats of many characters.
- Fixed problems with bugged auras from items when entering the game.
- Rewritten chances mechanics for stability, avoidance of reflection.
- Completely rewritten speed rating system, as well as its effect on spells.

* 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.