The KDE SIG is now working on KDE-4.3.0-related builds for Fedora 10 and
11 candidate updates. As this requires some buildroot overrides, if your
package uses KDE libraries, it may inadvertently build against KDE 4.3.0
libraries and may, at least in some cases, NOT work with 4.2.4.
So please either hold off on update builds for packages using KDE
libraries or contact us (on the #fedora-kde IRC chan or the fedora-kde
mailing list).
-- Rex