일단 출처는 http://blogs.windows.com/windows/b/bloggingwindows/archive/2013/05/14/windows-keeps-getting-better.aspx

...전략...

Today at the JP Morgan Technology, Media & Telecom Conference in Boston, Tami Reller shared with the audience that the update previously referred to as “Windows Blue” will be called Windows 8.1and will be a free update to Windows 8 for consumers through the Windows Store.

...어쩌고저쩌고... 윈도우 블루라 불리는 윈도우 8.1은 윈도우8 사용자들한테 윈도우스토어를 통해 무료업데이트로 제공될 것입니다.

...중략...

We have much more to share about Windows 8.1 in the coming weeks. We will also be making a public preview of Windows 8.1 available starting on June 26, timed with the Build developer conference in San Francisco. The preview will be available for Windows 8 and Windows RT.

...또 어쩌고저쩌고... 샌프란시스코 시간으로 6월 26일에 배포 여정이며, 윈도우8이랑 RT버전 둘 다 해당됩니다.

...후략...

그렿다고 합니다.