New spell ranks on PTR
Usual disclaimer, keep in mind that it's not official and that it's very, very unlikely to see these spells in game in 2.3.2. Now, the good news, it seems that premade mage characters got a little bonus on 2.3.2 PTRs .... a new rank of Frostbolt and Fireball !

This spell could be here for three reasons :
1st theory - Blizzard might plan to introduce new ranks of existing spells before the expansion, they did it in the past and it wouldn't be really surprising. However, it was stated in a blue post that there wasn't any plan to do so. (But devs could have changed their mind)
2nd theory (most likely) - When premades characters were made, they just gave the character all the spells related to Mages in the database including unused ones, this could also explain the seed of corruption bugs on the warlock characters. They could just be test spells. (See 3rd theory)
3rd theory - Someone forgot to clean his Blizzcon mess from the spell database. ^^


International lag fix
WoW lags, it's not something new if you're playing on servers a bit far away from your country, but don't worry people are fixing it ! Out of all the methods offered to fix the lag on your machine, one of them posted on Elitistjerks forums seems to work very well.

Source - Elitistjerks.com

1 - TcpAckFrequency - NOTE if you are running Windows Vista this setting may not have any effect - a hotfix is needed which i'm tracking down. This works fine under Windows XP

Type regedit in windows run.. dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\

There will be multiple NIC interfaces listed in there, find the one you use to connect to the internet, there will be several interfaces listed (they have long names like {7DBA6DCA-FFE8-4002-A28F-4D2B57AE8383}. Click each one, the right one will have lots of settings in it and you will see your machines IP address listed there somewhere. Right-click in the right hand pane and add a new DWORD value, name it TcpAckFrequency, then right click the entry and click Modify and assign a value of 1.

You can change it back to 2 (default) at a later stage if it affects your other TCP application performance. it tells windows how many TCP packets to wait before sending ACK. if the value is 1, windows will send ACK every time it receives a TCP package.

2 - TCPNoDelay
This one is pretty simple (Discussed here)

Type regedit in windows run.. dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\Parameters

Right-click in the right hand pane and add a new DWORD value, name it TCPNoDelay, then right click the entry and click Modify and assign a value of 1.

Click Ok and close the registry editor, then reboot your PC.

1 - It might have side effects, like slowing down your download speed or affecting your performance on other softwares. (In my case, it didn't change anything)
2 - If you're not sure about what you're doing, just don't do it. I don't want to be responsible because you crashed your computer in some way because you wasted your registry.
3 - If you don't have the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\ directory, you can download and apply this file to your registry.
4 - Window...