Four years after its release, we’re all still using Windows 10. But that’s not really true: The version of Windows 10 we’re using today has seen four years of improvements. It’s packed with shiny new features and clever under-the-hood optimizations. //

Despite the version number, the Windows 10 operating system we’re all using today is practically a new version of Windows. If Microsoft kept the naming scheme from Windows 8.1, we’d be on Windows 10.7 by now.