HI,
Yes SEP 12 RU2 support windows 8 and Windows 2012.
Product Highlights:
1) Extended Platform support
- Mac OS X Mountain Lion (10.8)
- Windows 8
- Windows Server 2012
2) Virtualization – Shared Insight Cache for VMware vShield
3) Improved Protection
- Improved STAR protection technologies
- Windows 8 ELAM support
- Windows 8 App remediation
4) Extended Management
- Web Services for 3rd party integration (i.e. RMM)
- SEP Management Plugin for Kaseya 2.0
- GUP roaming support for multiple subnets
- Remote Sylink drop support from the SEP Manager
- Expanded 3rd party security software removal – 130 products from 30 vendors
Reference:
https://www-secure.symantec.com/connect/forums/latest-symantec-endpoint-protection-released-sep-121-ru2-and-sep-110-ru7-mp3
Article on this Latest Release of Symantec Endpoint Protection 12.1.RU2 are available, check these -
Knowledgebase Articles for Symantec Endpoint Protection 12.1. RU2
Knowledgebase Articles for Symantec Endpoint Protection SBE 12.1. RU2