There is this about Windows 8:
"Managing Microsoft Windows 8 computers using Client and Server Management Suite and Symantec Management Platform 7.1 SP2"
http://www.symantec.com/docs/DOC6193
(Edit: URL corrected having read Mike's post)
And it has links to DS 6.9 and 7.1 info that includes 2012.
The Support Matrix you link to is dated 6 Feb 2013