Several readers sent word that Microsoft has officially dubbed the upcoming revision to its flagship operating system "Windows 8.1," retiring the code-name "Windows Blue." They also said the update would be freely available to anybody with Windows 8. It will be available through the Windows Store. "Reller declined to provide an exact release date for Windows 8.1, but said that Microsoft is 'very sensitive to the timing of the holidays.' Ideally, Microsoft will be able to provide devices with Windows 8.1 pre-loaded in time for the holiday 2013 season, Reller said, but those who purchase a Windows 8 device later this year will be able to easily upgrade to 8.1."