Version: (using Devel) Installed from: Compiled sources http://kde.org/announcements/changelogs/changelog4_2_3to4_2_4.php contains a link to http://kde.org/announcements/changelogs/4_2_4/kdelibs.txt which doesn't exist. Also, 4.2.4 is not present in bugzilla.
Fixed link error
KDE 4.2.4 is now available