Suse Linux Enterprise Server 10 SP4 ( SLES 10 SP4 ) was released on
April 12th 2011.

See: http://www.novell.com/linux/releasenotes/
http://support.novell.com/inc/lifecycle/linux.html

This means that you have to upgrade your SLES 10 SP3 installations to
SP4 within 6 Months of the release to continue receive Support for SLES
10. As an alternative you can purchase Long Term Service Pack
Support: http://www.novell.com/linux/service-pack-support.html

SLES 10 SP3 is out of Support!
Please update to SLES 10 SP4 ASAP!