A first public beta version of Windows 9 coming in September?

SNEAK PEEK: A first unofficial picture of Windows 9 featuring a Start menu leaked in the summer of 2014 on the forums of website My Digital Life. — AFP/Relaxnews 2014

According to ZDNet.com, Microsoft could soon reveal a first public beta version of its future operating system, known for now under the codename "Threshold." This first public version could be available in late September or early October. 

The users who install that version, unstable by definition, will then have to install other automatic updates until the release of the final version of Windows 9, still expected for spring 2015.