The key functionality that is part of this release is as follows:

UI Improvements
State selector
Real time state changes (eventing)
Cisco Facebook Reply Template
Auto-Tagging
Updated Hardware Policy (any hardware vendor)
Serviceability
Eventing Status
Hardware Status
Logged in Users
Proxy Settings UI update -CCX
Localizations
HTTP Notification


What's new in 8.5(3) [url= http://docwiki.cisco.com/wiki/SocialMiner_Release_8.5(3)#What.27s_New_in_Release_8.5.283.29]doc-wikidoc-wiki:
http://docwiki.cisco.com/wiki/SocialMiner_Release_8.5(3)#What.27s_New_in_Release_8.5.283.29