As of today, KDE SC 4.6.5 is in natty-updates for all users. This brings 11.04 up to date with the final KDE SC 4.6 update produced by KDE plus some additional high priority fixes. This is the third time in a row we’ve done this:
kde4libs | 4:4.4.5-0ubuntu1.1 | lucid-updates | source
kde4libs | 4:4.5.5-0ubuntu2 | maverick-updates | source
kde4libs | 4:4.6.5-0ubuntu1 | natty-updates | source
Enjoy the bug fixing goodness.