Windows 8.1 Next From Microsoft

Next from Microsoft is Windows 8.1 (previously known as Windows Blue) which is an update to Windows 8 and will be launched during Microsoft Build developer conference in San Francisco which will kick off on 26th June.
The update will be free to download and is said to take about 4GB of disk space but the good news is after installing, the size will be relatively that Windows 8 thanks to compression and removal of temporary system files. The preview will be available sometime this month probably before 26th for everyone to download although it is rumored that currently only select Microsoft testers are able to download it from the Store.
Something for Windows 7 users ; you guys will have to install Windows 8 first so as to upgrade to Windows 8.1 since the preview will be available only for Windows 8 and Windows RT.
Here is a video overview of some of the features of Windows 8.1.
Image Source: techradar.com