Write-DfsrHealthReport on server 2008R2

I was looking into some of the DFS cmdlets from powershell 4.0. Technet says the requirements are:
Applies To: Windows 8.1, Windows PowerShell 4.0, Windows Server 2012 R2.
If I install powershell 4.0 on server 2008 R2 can I get access to these cmdlets from there or not? Powershell 4.0 says it is supported on server 2008 R2.

Thanks in advance for any information.