Yes, this was an upgrade. 12.3 > 13.1
Method:
Change all repos to 13.1 > this was the list and settings
1 | download.nvidia.com-opensuse | nVidia Graphics Drivers | Yes | Yes
2 | extra411 | extra411 | Yes | Yes
3 | ftp.gwdg.de-suse | Packman Repository | Yes | Yes
4 | google-chrome | google-chrome | Yes | Yes
5 | kde411 | kde411 | Yes | Yes
6 | malcolms | malcolms | Yes | Yes
7 | opensuse-guide.org-repo | libdvdcss repository | Yes | Yes
8 | repo-debug | openSUSE-13.1-Debug | No | No
9 | repo-debug-update | openSUSE-13.1-Update-Debug | No | No
10 | repo-debug-update-non-oss | openSUSE-13.1-Update-Debug-Non-Oss | No | No
11 | repo-non-oss | openSUSE-13.1-Non-Oss | Yes | Yes
12 | repo-oss | openSUSE-13.1-Oss | Yes | Yes
13 | repo-source | openSUSE-13.1-Source | No | No
14 | repo-update | openSUSE-13.1-Update | Yes | Yes
15 | repo-update-non-oss | openSUSE-13.1-Update-Non-Oss | Yes | Yes
Then using Yast software manager I upgraded all unconditionally > marked for removal some unmaintained packages > switched on kde411 > switched on extra 411 > switched on Packman >
Apply
4 GB + to download
Reboot when done
All good.
Had to edit grub.cfg to reflect 13.1 (as it showed 12.3)