the documentation says: Don't miss the "-t patch" parameter when install
OES patches. You have to use: "zypper up -t patch -r SLES11-SP2-Updates
-r OES11-SP1-Updates"

"zypper patch" has the option "--date" which allows to install patches
until a defined date. This is useful because I need equal patch level
on many servers. I miss this option under the parameter: "zypper up ..."

Is there a work-a-round?