With the RTM release of Windows 8.1 imminent, a new report claims that Windows 8.1 RTM build number will be 6.3.9600.16384. This news comes immediately after the leak of build 9477, which was leaked yesterday.
Microsoft is very close to releasing the final build of Windows 8.1 RTM to manufacturers so they can pre-install the operating system on select hardware. Microsoft has been making quite a bit of progress as of late and it is only a matter of time before we see Windows 8.1 hit RTM.
Microsoft also recently revealed that Windows 8.1 would be hitting stores on October 18, 2013. Those who wish to upgrade via the Windows Store can snag the update one day early. Windows 8.1 is an update and not an upgrade, and it will be free for users running Windows 8.