MultiTrans plug-in /TM provider for Trados Studio - unvalidated update

Hi there

I got several notices today to update my MultiTrans plug in for Trados Studio.  I clicked to upgrade to version 3.1.2.0 and a reboot was required.  After rebooting Trados issued a warning that the update had not been validated and should not be installed.  So I clicked "No". 

Can any one confirm this update is secure and tell me where I can go to confirm upgrades automatically if possible.

Cheers, 

David Rumsey