Hello - Upgraded SLES11 SP2 to SLES11 SP3 and /etc/SuSE-release PATCHLEVEL = 2 did not change to PATCHLEVEL = 3!
Initially had a problem with meta data on the SP3 repositories. Fix that.

Downloaded files:
libgpg-error0-1.10-0.7.29.s390x.rpm
libgpg-error0-32bit-1.10-0.7.29.s390x.rpm
suse-build-key-1.0-907.42.35.noarch.rpm

Executed:
libgpg-error0-1.10-0.7.29.s390x.rpm
libgpg-error0-32bit-1.10-0.7.29.s390x.rpm
suse-build-key-1.0-907.42.35.noarch.rpm

ran Yast Update - This ran well without errors.
Unsure where to start looking for how to verify PATCHLEVEL and why /etc/SuSE-release did not get updated!


uname -a
Linux linux212 3.0.101-0.47.55-default #1 SMP Thu May 28 08:25:11 UTC 2015 (dc083ee) s390x s390x s390x GNU/Linux

SUSE Linux Enterprise Server 11 (s390x)
VERSION = 11
PATCHLEVEL = 2

rpm -qa| grep release
lsb-release-2.0-1.2.18
sles-release-11.2-1.538
release-notes-sles-11.3.34-0.7.1
sles-release-DVD-11.1-1.152