Blizzard has used the patch version 5.0.1 for the Beta, but it may not use that version for live release. The expectation will be for a pre-expansion world event release, but there is no sign of it yet on the PTR or anything but a passing mention of a Patch 4.4.[1] As of July 13th, 2012, a blue post clarifies the use of 5.0.3 for the systems patch.[2]
On July 3rd, 2012, a systems patch intended to precede the Mists of Pandaria release was announced to appear on the PTR, but will not be accessible to Beta tester accounts and no expansion content or zones will be accessible.[3] The first PTR systems client was released on July 13th, 2012 and had the same build 15851 number as the Beta, but the patch version was changed to Patch 5.0.3.[4]
Build 15464 was available on the beta server on March 22, 2012.[5] Build 15508 was made available on March 29th, 2012.[6] Build 15544 was made available April 6th, 2012,[7][8][9] but there was an extended maintenance for the Beta realms most of the day.[10] Build 15589[11] was released late on April 11th, 2012[12] after beta server maintenance.[13]
Build 15640 was released late on April 24th, 2012 and [14][15] and build 15650 was released soon after on late April 27th, 2012.[16][17] Build 15657 was released on May 1st, 2012[18][19] and soon after, build 15662 was released.[20][21] Build 15668 was released on May 8th, 2012,[22][23] but the 64-bit client for Mac would not download. Build 15677 was released a couple of days later on May 10th, 2012,[24][25] but although the Mac 64-bit client now downloads, both 64-bit clients crash after character selection.[26]
Build 15689 was released later May 12th, 2012[27][28] and the 64-bit client is working again.[29]Blizzard took a minor break to release a little game called Diablo III and released build 15699 on May 18th, 2012.[30][31] Build 15726 was released on May 23rd, 2012.[32][33]
Lots of new ability changes, achievements, and items.[14]
Support for account wide achievements. When earning an achievement on another character, the icon changes and will tell you which character the achievement was earned on.[37]
A new Mounts / Pets interface, including account-wide companion pets.[37]
A new help system in the Spellbook, including a "Core Abilities" page that points the most important abilities of your spec.[37]
A new way to create premade characters on beta realms.[37]
A new loot win frame (basically just an announcement box).[37]
New Pandaren subzones for Orgrimmar and Stormwind City.[37]
After talking to the Jade Serpent at the broken statue in the Jade Forest, she flies you to the Valley of the Four Winds where you meet … Chen Stormstout, who confirms he’s from the Wandering Isle, and doesn’t even know where to go within Pandaria. Chen asks you to tag along, and asks Pang Thunderfoot at the Pang’s Stead for a room.
Fighting the turtles in the Valley of the Four Winds is causing the server crashes. Don’t even get anywhere near the lake until that’s fixed.
Level cap was raised to level 87.
Krasarang Wilds is currently off-limits. A debuff marks players who attempt to enter that zone and teleport you back to the starting zone in the Jade Forest.
There is a known issue. Ultra and High settings might cause buildings and other textures be a massive flat pink cube. Changing the settings while in-game will cause a client crash.
Acid Rain quest is currently bugged, and works in an out after a few attempts.
All quests where players need to gather items from the ground such as herbs, berries, scrolls, maps, figurines, etc. are currently bugged. The items are not glittering nor seen.
^Kaivax 2012-07-03. Access to 5.0.3PTR and Mists of Pandaria Bet(a). Official Community > Mists of Pandaria forum (EU). We will soon begin public testing of patch 5.0.3 of World of Warcraft, a patch that will precede the Mists of Pandaria release, and includes many features and functions that are new to the game.
We encourage all players who wish to test patch 5.0.3 with us to take careful note of the following:
It will not be possible to access the 5.0.3 PTR realms with a game account that accesses the Mists of Pandaria Beta.
If a game account has been flagged with a Mists of Pandaria Beta license, it can only be used to enter Beta realms.
This limitation is on each World of Warcraft license, and is not Battle.net account-based.
While testing 5.0.3, players will not be able to access zones or content that is a part of the Mists of Pandaria expansion.
Thank you for your continued support of our testing and tuning process. We look forward to seeing you in-game.
^Sapperwix 2012-04-11. Beta Maintenance - 4/11/12. Official Mists of Pandaria Beta > Beta Feedback forum (US). The Beta realms are going to be down for maintenance at 10:30 am PST on 4/11/12. This thread will be updated once they are available again.