I have an application that uses Marble, and I use the ViewportParams::screenCoordinates(const GeoDataCoordinates &, qreal *, qreal &, int &, const QSizeF &, bool &) const function. I've been away on maternity leave, so I haven't compiled my code in awhile, but now I get an error with my call to this function. Apparently the QSizeF parameter is new. That's fine, but the change hasn't been documented on the API:
http://api.kde.org/stable/kdeedu-apidoc ... b9106477cd

Any hints on what this parameter does?

EDIT: On an somewhat related note, the tutorial on how to search for a location here:
http://techbase.kde.org/Projects/Marble/Runners/Search

says to use MarbleRunnerManager, but it seems this class no longer exists.