New
#31
This is what you'll see by pressing Windows key and R then typing winver:Attachment 190594
The Version number is bigger than the previous version so traditionally that's always been an Upgrade. The Build number is akin to the Service Pack of previous versions of Windows, Win7 back to WinXP, they are improvements for various issues, some minor, some for security, etc., that may not warrant a version Upgrade. It must be kept in mind that some changes may affect other parts of the OS, if so Microsoft needs feedback about it.