How to determine the Windows 8 and 10 versions from ABL at runtime ?

As it's sometimes necessary to determine which Windows version an ABL application is running on, article 000020185 explains the use of  the WIN API GetVersionEx function to obtain extended information about the version and service pack of the operating system.

However, in Windows 8.1 and higher, this function returns the same major version and minor version as in Windows 8, namely: 6.2

The MSDN page regarding OS version explains the following:
In Windows 8.1 and Windows 10, the GetVersion and GetVersionEx functions have been deprecated.
Applications not manifested for Windows 8.1 or Windows 10 will return the Windows 8 OS version value (6.2).
 

How to determine the Windows 8 and 10 versions from ABL at runtime ?

While you can still call the deprecated functions, if your application does not specifically target Windows 8.1 or Windows 10, you will get Windows 8 version (6.2.0.0).

Thus in order to target Windows 8.1 or Windows 10, it is necessary to include the app manifest in the source file.

To do so, add the following tag in the 'prowin.exe.manifest' or 'prowin32.exe.manifest'-file. 

<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">  </compatibility> 

Reference to Other Documentation:
Progress Article(s):
 ABL/4GL: How to determine the Windows Version, Build and Service pack under which the current 4GL/ABL session is running?
 What information is required when opening a support case for OpenEdge ABL issues?
 How can I tell if my Linux Redhat machine is running 32 or 64 bit for the Operating System?
 How to determine the bitness of Windows?

MSDN article: https://msdn.microsoft.com/en-us/library/windows/desktop/dn481241(v=vs.85).aspx