hi,
Hi SEP 12.1 RU1 mp1 is old version recently symantec has released new sep 12.1.2 MP1.
The Latest Version of SEP 12.1.1101.401 (RU1 MP1) has -
#Edit
- Over 800 product fixes
- Third Party Removal
- Remote Monitoring and Management (RMM) Support
- Release of the Symantec Endpoint Protection Management Plug-in 1.5 for Kaseya
- System Change Detection Exceptions
- Changes to Tamper Protection alerts and logging
- Trialware package size reduction
- Support for SQL Server 2012
- STAR updates
- Security updates
Check this artical
https://www-secure.symantec.com/connect/articles/sep-version-121ru1-mp1-has-been-released
check this blog
Latest Version sep 12.1.ru2 mp1
https://www-secure.symantec.com/connect/blogs/latest-symantec-endpoint-protection-released-sep-121-ru2-mp1