What Happened Last Night?

I use the YaST Automatic Online Update and I like it a lot. Using it gets me all the updates as soon as they are released and I don't even have to install them. However, sometimes it would be nice to know what changed last night. Can I set up a log file that just watches for YOU updates and nothing else? A romp thru the admin manual was no help. Any suggestions will be appreciated. Don Henson