|Architecture||x86, x64, ARM|
Pro with Media Center
|BIOS date||2013-08-21 (Not needed)|
The Official RTM for Windows 8.1, can be Upgraded when running on Windows 7.
On 2013-08-23 at 5:32PM (GMT) we have received a Microsoft.WinJS.2.0_1.0.9600.16384 update package, which holds the buildstring of "1.0.9600.16384.winblue_rtm.130821-1623".
On 2013-08-26, Win8China posted an article with five screenshots of this build, but with only the build number visible. Later that day, more screenshots were posted to ITHome BBS by Star2011. They mainly show new images, such as wallpapers, lock screens etc.
On 2013-08-27, the zh-CN x64 version of this build leaked.
On 2013-08-29, a big leak of Pro en-US x86, x64 in en-US and ru-RU and Enterprise x86, x64 in many languages happened.
On 2013-08-30, the big leak continues, with Pro x86, x64 in various languages and Server 2012 R2 RTM in en-US and ru-RU.
Following the find of this buildtag, there are rumors that the PCPortal buildtag is fake.
Discovered by AirportsFan.