It seems that Microsoft bring out a new operating system every 3 years or so. It is getting impossible to keep up with it.
The recent new version of Windows is Windows 10 which I have tried one of the builds a few months ago. While I found that all of the software that I used on Windows 8 works...
automatic updates
build
features
installation
metroicons
operating system
personalization
software compatibility
support period
trial software
ui changes
update control
upgrade
user experience
windows 10
windows 7
windows 8
windows 8.1
windows vista
windows xp