Alright so, I have windows 7, where it downloads WoW into a folder called "Blizzard Entertainment", in the patches folder, obviously where it downloads patches it leaves a text file called Patch Sequence File, with build information regarding the launcher and the game client itself. This is just a random/known find that I thought id share to show past and future builds (Latest Releasted build 4.0.0 for the Cata Alpha Client).
http://12.129.224.130/update/PatchSequenceFile.txt
Code:
[special]
expansion-speech-{LANG}=WoW-2.0.0.6080-expansion-speech-{CPU}-{OS}-{LANG}
[GAME]
CurrentBuild=10482
6546=WoW-installer-2.x.x.x-to-3.0.1.8874-{PLATFORM}-{OS}-{LANG}
6692=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
6729=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
6739=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
6803=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
6898=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
7272=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
7318=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
7359=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
7561=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
7741=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
7799=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
8089=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
8125=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
8278=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
8606=WoW-installer-2.x.x.x-to-3.0.1.8874-{CPU}-{OS}-{LANG}
[WoWT]
CurrentBuild=12213
10522=WoW-0.3.0.10522-0.3.0.10958-{CPU}-{OS}-{LANG}-ptr
10554=WoW-0.3.0.10554-0.3.0.10571-{CPU}-{OS}-{LANG}-ptr
10571=WoW-0.3.0.10571-0.3.0.10596-{CPU}-{OS}-{LANG}-ptr
10596=WoW-0.3.0.10596-0.3.0.10623-{CPU}-{OS}-{LANG}-ptr
10623=WoW-0.3.0.10623-0.3.0.10676-{CPU}-{OS}-{LANG}-ptr
10676=WoW-0.3.0.10676-0.3.0.10712-{CPU}-{OS}-{LANG}-ptr
10712=WoW-0.3.0.10712-0.3.0.10747-{CPU}-{OS}-{LANG}-ptr
10747=WoW-0.3.0.10747-0.3.0.10772-{CPU}-{OS}-{LANG}-ptr
10772=WoW-0.3.0.10772-0.3.0.10805-{CPU}-{OS}-{LANG}-ptr
10805=WoW-0.3.0.10805-0.3.0.10835-{CPU}-{OS}-{LANG}-ptr
10835=WoW-0.3.0.10835-0.3.0.10894-{CPU}-{OS}-{LANG}-ptr
10894=WoW-0.3.0.10894-0.3.0.10952-{CPU}-{OS}-{LANG}-ptr
10952=WoW-0.3.0.10952-0.3.0.10958-{CPU}-{OS}-{LANG}-ptr
10958=WoW-0.3.0.10958-0.3.3.11573-{CPU}-{OS}-{LANG}-ptr
11573=WoW-0.3.3.11573-0.3.3.11599-{CPU}-{OS}-{LANG}-ptr
11599=WoW-0.3.3.11599-0.3.3.11623-{CPU}-{OS}-{LANG}-ptr
11623=WoW-0.3.3.11623-0.3.3.11643-{CPU}-{OS}-{LANG}-ptr
11643=WoW-0.3.3.11643-0.3.3.11655-{CPU}-{OS}-{LANG}-ptr
11655=WoW-0.3.3.11655-0.3.3.11685-{CPU}-{OS}-{LANG}-ptr
11685=WoW-0.3.3.11685-0.3.5.11993-{CPU}-{OS}-{LANG}-ptr
11993=WoW-0.3.5.11993-0.3.5.12045-{CPU}-{OS}-{LANG}-ptr
12045=WoW-0.3.5.12045-0.3.5.12124-{CPU}-{OS}-{LANG}-ptr
12124=WoW-0.3.5.12124-0.3.5.12148-{CPU}-{OS}-{LANG}-ptr
12148=WoW-0.3.5.12148-0.3.5.12166-{CPU}-{OS}-{LANG}-ptr
12166=WoW-0.3.5.12166-0.3.5.12196-{CPU}-{OS}-{LANG}-ptr
12196=WoW-0.3.5.12196-0.3.5.12213-{CPU}-{OS}-{LANG}-ptr
12025=WoW-4.0.0.12025-4.0.0.12065-{CPU}-{OS}-{LANG}
12065=WoW-4.0.0.12065-4.0.0.12122-{CPU}-{OS}-{LANG}
12122=WoW-4.0.0.12122-4.0.0.12164-{CPU}-{OS}-{LANG}
[WoW]
CurrentBuild=11723
8874=WoW-3.x.x.x-3.2.0.10192-{CPU}-{OS}-{LANG}
9056=WoW-3.x.x.x-3.2.0.10192-{CPU}-{OS}-{LANG}
9183=WoW-3.x.x.x-3.2.0.10192-{CPU}-{OS}-{LANG}
9464=WoW-3.x.x.x-3.2.0.10192-{CPU}-{OS}-{LANG}
9506=WoW-3.x.x.x-3.2.0.10192-{CPU}-{OS}-{LANG}
9551=WoW-3.x.x.x-3.2.0.10192-{CPU}-{OS}-{LANG}
9767=WoW-3.1.0.9767-3.1.1.9806-{CPU}-{OS}-{LANG}
9806=WoW-3.1.1.9806-3.1.1.9835-{CPU}-{OS}-{LANG}
9835=WoW-3.1.1.9835-3.1.2.9901-{CPU}-{OS}-{LANG}
9901=WoW-3.1.2.9901-3.1.3.9947-{CPU}-{OS}-{LANG}
9947=WoW-3.1.3.9947-3.2.0.10192-{CPU}-{OS}-{LANG}
10192=WoW-3.2.0.10192-3.3.0.10958-{CPU}-{OS}-{LANG}
10314=WoW-3.2.0.10314-3.2.2.10482-{CPU}-{OS}-{LANG}
10482=WoW-3.2.2.10482-3.2.2.10505-{CPU}-{OS}-{LANG}
10505=WoW-3.2.2.10505-3.3.0.10958-{CPU}-{OS}-{LANG}
10958=WoW-3.3.0.10958-3.3.0.11159-{CPU}-{OS}-{LANG}
11159=WoW-3.3.0.11159-3.3.2.11403-{CPU}-{OS}-{LANG}
11403=WoW-3.3.2.11403-3.3.3.11685-{CPU}-{OS}-{LANG}
11685=WoW-3.3.3.11685-3.3.3.11723-{CPU}-{OS}-{LANG}
11927=WoW-4.0.0.11927-4.0.0.12025-{CPU}-{OS}-{LANG}
[WOW-STREAMING]
CurrentBuild=11685
10482=WoW-3.2.2.10482-3.3.0.10958-{CPU}-{OS}-{LANG}-Trial
10958=WoW-3.3.0.10958-3.3.0.11159-{CPU}-{OS}-{LANG}-Trial
11159=WoW-3.3.0.11159-3.3.2.11403-{CPU}-{OS}-{LANG}-Trial
11403=WoW-3.3.2.11403-3.3.3.11685-{CPU}-{OS}-{LANG}-Trial
[LAUNCHER]
CurrentBuild=1462
338=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
347=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
374=Tools-1.7.0.476-{CPU}-{OS}-{LANG}-UPDATE
380=Tools-2.0.0.482-{CPU}-{OS}-{LANG}-UPDATE
387=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
420=Tools-2.0.0.482-{CPU}-{OS}-{LANG}-UPDATE
444=Tools-2.0.0.482-{CPU}-{OS}-{LANG}-UPDATE
446=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
476=Tools-1.7.0.476-to-2.1.1.1368-{CPU}-{OS}-{LANG}-UPDATE
481=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
483=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
491=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
525=Tools-2.1.1.1362-{CPU}-{OS}-{LANG}-UPDATE-ptr
1361=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
1374=Tools-2.1.1.1462-{CPU}-{OS}-{LANG}-UPDATE
[BACKGROUND]
I'll probably get flamed, but this is just a share showing where the file is, showing what it does, and informing what it contains, etc for future development in client builds, etc.