Windows 2008 and 2012 without R2 version are supported?

Document ID : KB000076853
Last Modified Date : 10/04/2018
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Question:
The following support matrix says the Windows 2008R2 and 2012R2 are supported. Is it supported the Windows 2008 and Windows 2012 without R2 version?

https://support.ca.com/phpdocs/7/9526/9526-PAM-platformsupportmatrix.pdf
Environment:
CA Privileged Access Manager 3.1.1
Answer:
Windows 2008 and Windows 2012 without R2 version are not supported. Those R2 versions are supported.