I missed this one, but mikala has done KDE 4.5.4 packages for Mandriva 2010 Spring, thank you !! this time it includes some other goodies like Qt 4.7.1, Phonon 4.4.3, NetworkManager partial support and kdepim 4.4.8. Packages are available in Mandriva Italia Backports (MIB) FTP for both i586 and x86_64 platforms. Here are the upgrade instructions:

First, if you have added the repositories for any previous version, remove them with the following command:

urpmi.removemedia kde-4.5.3

or whatever name you gave to the repository. Second, add the KDE 4.5.4 repository. For 32 bit systems use the following urpmi command (as root):

urpmi.addmedia --update MIB-KDE454_release http://mib.pianetalinux.org/MIB/2010.1/others/kde/4.5.4/32/release
urpmi.addmedia --update MIB-KDE454_updates http://mib.pianetalinux.org/MIB/2010.1/others/kde/4.5.4/32/updates
urpmi.addmedia --update MIB-KDE454_extras http://mib.pianetalinux.org/MIB/2010.1/others/kde/45X-extras/32/

For 64 bits systems use the following urpmi command (as root):

urpmi.addmedia --update MIB-KDE454_release http://mib.pianetalinux.org/MIB/2010.1/others/kde/4.5.4/64/release
urpmi.addmedia --update MIB-KDE454_updates http://mib.pianetalinux.org/MIB/2010.1/others/kde/4.5.4/64/updates
urpmi.addmedia --update MIB-KDE454_extras http://mib.pianetalinux.org/MIB/2010.1/others/kde/45X-extras/64/

Then update the repositories and download all the packages before actually installing them to make sure that the installation is possible (as root):

urpmi --auto-update --auto-select --test

When all packages finish downloading and you see a message at the end saying that the installation is possible, you can now run the same command without the –test parameter to now perform the installation (as root):

urpmi --auto-update --auto-select

After the packages installation finishes, logout and log back in, That’s it. If you have any problem with the upgrade, the first thing to do to try to solve it is to log out, move away your .kde4 directory and log back in.