Microsoft has released Windows Management Framework 5.1 for windows 7 and later.

WMF 5.1 upgrades Windows 7, Windows 8.1, Windows Server 2008 R2, Windows Server 2012, and Windows Server 2012 R2 to the PowerShell, WMI, WinRM and SIL components that were released with Windows Server 2016 and Windows 10 Anniversary Edition.  

For more information:

https://blogs.msdn.microsoft.com/powershell/2017/01/19/windows-management-framework-wmf-5-1-released/