What’s New in Windows 8.1
Below is a list of some of the new and updated features that we invite to you test out when the Windows 8.1 experience becomes available later this month:
http://technet.microsoft.com/en-US/windows/dn140266.aspx?ocid=wc-ext-aka
Update: Microsoft has announced that Windows 8.1 will be released on 18 October.