I have a desktop machine that has evolved over 5 years from SUSE 9.3 and KDE 3.1 though to its current recent upgrade to.

OS: Linux 2.6.31.12-0.1-desktop i686
System: openSUSE 11.2 (i586)
KDE: 4.3.1 "release 6"

Is there a script to remove redundant tools/libs once an upgrade is complete from one version to another?

For example:
Looking through YAST2's installed file list I see I have kdelibs3 still installed at 38.2Mb and also kdelibs4 at 13.7Mb.

Can I assume that all kde3 files are redundant?

If you are still using KDE 3 applications, then KDELibs3 and Qt3 are both still required.

Thank you for your prompt reply. So if I click 'delete' in YAST and there is nothing I want in the pop-up de-install box the code is redundant?
It would be nice if there was a script to identify these items rather than having to enter search terms in the YAST installation window.

Make sure to check on the 'Installation Status' tab for what YaST will do. It should only list one item if you are removing KDELibs3.