Aan record of updates via YAST?

From: scott (svetter_at_ameritech.net)
Date: 06/30/05 

Date: Thu, 30 Jun 2005 05:06:37 GMT

   Is there any journal of YAST obtaining and installing updates that
the Linux administrator can read? Seems that recently I had received an
update which has really disrupted my network cards and caused their
performance to decline dramatically.

Thanks