Symantec Endpoint Protection 12.1.2 has been released. The release notes are available here. The download is available through Fileconnect. The same serial number as for 12.1 worked for me.
Of primary interest to me is support for Windows 2012, Windows 8 and Apple OS X 10.8 (Mountain Lion).
The Client Deployment Wizard can now deploy sylink.xml instead of only pushing installs. I’m hoping that means I can easily move people from the dev SEPM to production as desired. The Client Deployment Wizard can also remove existing competitor security software.