Video Screencast Help


Created: 26 Mar 2013 • Updated: 27 Mar 2013 | 4 comments
julrendo's picture
This issue has been solved. See solution.


in Definitions & Security Updates page indicates:
Definitions Released: and Extended Version.

can tell me what is the difference


Operating Systems:

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Brɨan's picture

Date released means they were released on that day but on the client the extended definition date is what shows.

So for example Proactive Threat Protection (Behavior based protection)

Released on 3/5/2013 but date on client will show as Friday, March 01, 2013 r11

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Mithun Sanghavi's picture


File-based AV - Updated daily (typically three times a day Monday through Friday; one time a day on weekends).

So, the date on which the definitions get released are known as "Definitions Released" and the certified definitions releases are marked with a revision number (as there are 3 releases a day ) which are known as "Extended version".

Definitions Released: 3/25/2013
Extended Version: 3/25/2013 rev. 24

How often are Endpoint Protection definitions for IPS, SONAR, and Download Protection released?


Network-Based Protection (IPS)- Updated on Weekdays (M-F - no releases scheduled for weekend or major holidays in the United States).

Behavior-Based Protection / Proactive Threat Protection - There is no set schedule.

Reputation-Based Protection (Insight) - Continually updated as it is a cloud based detection

Hope that helps!!

Mithun Sanghavi
Associate Security Architect


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pete_4u2002's picture

extended version shows the revision number in addition to the date of release of definition.

Rafeeq's picture

Extended: The original  definition the client interface would show 

Date Released: Symantec has released a definition for this particular content on this date and it will be marked with   Revision number.