OId Proactive Threat Protecton definitions on 12.1.4, current on 11.0.6

I am wondering if this is normal, or if my updates are lagging behind for some reason.  I reviewed http://www.symantec.com/security_response/definitions.jsp and do not see 12.1.4, though I assume the definitions would be similar to 12.1.3.  If this is normal, why are the Behavior Based Protection definitions for 11.x current as of 2/28/14 but for 12.1.3 the latest version is from 1/21/14?  Please see screenshots for reference:

Thank you.