windowsazure497e851aa948Yesterday the Windows team announced that Windows 8.1 will be generally available on October 18th, 2013.

It will be available at retail stores for purchase on new machines. It will also be available as a free upgrade to Windows 8 from the online Windows store.

You can read their full announcement at the link below:

Blogging Windows – Mark your calendars for Windows 8.1!
http://blogs.windows.com/windows/b/bloggingwindows/archive/2013/08/14/mark-your-calendars-for-windows-8-1.aspx

***Update***
You may be asking “What about Windows Server 2012R2 and System Center 2012R2?”

Answer: I am glad you asked. They are releasing on the same day! October 18th.

For details on that see Brad Anderson’s announcement here:

Mark Your Calendars for Oct. 18: The R2 Wave is Coming!
http://blogs.technet.com/b/in_the_cloud/archive/2013/08/14/mark-your-calendars-for-oct-18-the-r2-wave-is-coming.aspx